Femoral Nerve
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The femoral nerve arises from the lumbar plexus and descends between the psoas major and iliacus muscles. It supplies sensation to the front of the thigh and branches into the anterior cutaneous nerve and saphenous nerve. An injury to the femoral nerve can cause paralysis of the quadriceps femoris muscle, resulting in an inability to fully extend the knee. It can also lead to loss of sensation in the front of the thigh and medial side of the leg and foot. Entrapment of the femoral nerve can occur due to a herniated disc in the lower back or at the inguinal ligament in the thigh.
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Femoral nerve
The femoral nerve originates from the lumbar plexus, specifically from the L2, L3, and L4 nerve roots. It descends through the abdomen and enters the thigh behind the inguinal ligament. In the thigh, it gives off muscular branches that innervate the iliacus, sartorius, pectineus, and quadriceps femoris muscles. It also provides cutaneous innervation to the anteromedial thigh and medial knee, leg, and foot. Damage to the femoral nerve can result in weakness of hip and knee flexion and extension, with associated symptoms like buckling of the knee, difficulty lifting the thigh, and dragging of the leg.
Anatomy of flexor compartment of forearm
The median nerve passes between the two heads of the pronator teres muscle. The ulnar nerve passes between the two heads of the flexor carpi ulnaris muscle. Injuries to these nerves can result in characteristic hand deformities - injury to the median nerve can cause an "ape hand" and injury to the ulnar nerve can cause a "claw hand". The anterior and posterior interosseous nerves branch from these main nerves and supply muscles in the forearm but do not reach the skin.
Posterior compartment of leg
The document describes the anatomy of the posterior compartment of the leg. It contains two compartments - a superficial compartment with the gastrocnemius, plantaris, and soleus muscles, and a deep compartment with the popliteus, flexor digitorum longus, flexor hallucis longus, and tibialis posterior muscles. All of these muscles are flexors or invertors of the ankle and are supplied by the tibial nerve.
Anatomy of Femoral nerve
The document summarizes key information about the femoral nerve including its origin from spinal nerves L2-L4, branches within the thigh that innervate muscles like the sartorius and rectus femoris, cutaneous branches that include the medial and intermediate cutaneous nerves, and its role in supplying the hip and knee joints according to Hilton's Law. It also notes the relationship of the femoral nerve to the femoral artery as it courses through the thigh.
Muscles of the forearm
The document describes the muscles of the anterior, lateral, and posterior fascial compartments of the forearm. In the anterior compartment, there are superficial, intermediate, and deep groups of muscles including the flexor carpi radialis, palmaris longus, flexor digitorum superficialis, and flexor digitorum profundus. The muscles are supplied by the median and ulnar nerves except for the flexor carpi ulnaris. The lateral compartment includes the brachioradialis and extensors of the wrist and fingers. The posterior compartment comprises extensors of the wrist, fingers and thumb including the abductor pollicis longus, extensor pollicis brevis and extensor
3.medial side of the thigh
The medial compartment of the thigh contains four muscles - gracilis, adductor longus, adductor brevis, and the pubic part of adductor magnus. It also contains the profunda femoris artery and vein, and the obturator artery and vein. The obturator nerve innervates the muscles and sends articular branches to the hip.
Lumbar plexus
The lumbar plexus originates from the ventral rami of spinal nerves L1-L4 and provides motor and sensory contributions to the anterior and medial compartment of the leg as well as the abdominal wall and pelvic areas. It supplies the iliohypogastric nerve from L1 which innervates abdominal wall muscles and the pubic region, and the ilioinguinal nerve also from L1 which innervates abdominal wall muscles and the upper inner thigh and pubic area. The lumbar plexus connects to the sacral plexus via the lumbosacral trunk formed from parts of L4 and all of L5.
Thigh - Ant.Compartment - Anatomy
Thigh - Anterior Compartment Anatomy contains many muscles and important Triangle the Femoral triangle. This slide gives you a diagramatic representation of the Ant.Compt and also Apllied anatomy facilitating Integrated Teaching.
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Femoral nerve
The femoral nerve originates from the lumbar plexus, specifically from the L2, L3, and L4 nerve roots. It descends through the abdomen and enters the thigh behind the inguinal ligament. In the thigh, it gives off muscular branches that innervate the iliacus, sartorius, pectineus, and quadriceps femoris muscles. It also provides cutaneous innervation to the anteromedial thigh and medial knee, leg, and foot. Damage to the femoral nerve can result in weakness of hip and knee flexion and extension, with associated symptoms like buckling of the knee, difficulty lifting the thigh, and dragging of the leg.
Anatomy of flexor compartment of forearm
The median nerve passes between the two heads of the pronator teres muscle. The ulnar nerve passes between the two heads of the flexor carpi ulnaris muscle. Injuries to these nerves can result in characteristic hand deformities - injury to the median nerve can cause an "ape hand" and injury to the ulnar nerve can cause a "claw hand". The anterior and posterior interosseous nerves branch from these main nerves and supply muscles in the forearm but do not reach the skin.
Posterior compartment of leg
The document describes the anatomy of the posterior compartment of the leg. It contains two compartments - a superficial compartment with the gastrocnemius, plantaris, and soleus muscles, and a deep compartment with the popliteus, flexor digitorum longus, flexor hallucis longus, and tibialis posterior muscles. All of these muscles are flexors or invertors of the ankle and are supplied by the tibial nerve.
Anatomy of Femoral nerve
The document summarizes key information about the femoral nerve including its origin from spinal nerves L2-L4, branches within the thigh that innervate muscles like the sartorius and rectus femoris, cutaneous branches that include the medial and intermediate cutaneous nerves, and its role in supplying the hip and knee joints according to Hilton's Law. It also notes the relationship of the femoral nerve to the femoral artery as it courses through the thigh.
Muscles of the forearm
The document describes the muscles of the anterior, lateral, and posterior fascial compartments of the forearm. In the anterior compartment, there are superficial, intermediate, and deep groups of muscles including the flexor carpi radialis, palmaris longus, flexor digitorum superficialis, and flexor digitorum profundus. The muscles are supplied by the median and ulnar nerves except for the flexor carpi ulnaris. The lateral compartment includes the brachioradialis and extensors of the wrist and fingers. The posterior compartment comprises extensors of the wrist, fingers and thumb including the abductor pollicis longus, extensor pollicis brevis and extensor
3.medial side of the thigh
The medial compartment of the thigh contains four muscles - gracilis, adductor longus, adductor brevis, and the pubic part of adductor magnus. It also contains the profunda femoris artery and vein, and the obturator artery and vein. The obturator nerve innervates the muscles and sends articular branches to the hip.
Lumbar plexus
The lumbar plexus originates from the ventral rami of spinal nerves L1-L4 and provides motor and sensory contributions to the anterior and medial compartment of the leg as well as the abdominal wall and pelvic areas. It supplies the iliohypogastric nerve from L1 which innervates abdominal wall muscles and the pubic region, and the ilioinguinal nerve also from L1 which innervates abdominal wall muscles and the upper inner thigh and pubic area. The lumbar plexus connects to the sacral plexus via the lumbosacral trunk formed from parts of L4 and all of L5.
Thigh - Ant.Compartment - Anatomy
Thigh - Anterior Compartment Anatomy contains many muscles and important Triangle the Femoral triangle. This slide gives you a diagramatic representation of the Ant.Compt and also Apllied anatomy facilitating Integrated Teaching.
Anatomy of forearm
The document provides an overview of forearm anatomy including bones (ulna, radius), joints (elbow, radioulnar), muscles, nerves, blood vessels, and approaches. Key points include:
- The ulna articulates with the trochlea of the humerus at the elbow joint. The radial head articulates with the capitellum.
- Flexor and extensor muscle groups originate on the humerus, ulna, and radius to flex/extend the elbow, pronate/supinate the forearm, and flex/extend the wrist and fingers.
- The median, radial, and ulnar nerves innervate muscles in the forearm and hand.
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Anatomy of anterior compartment of arm
The document describes the anatomy of the arm, including cutaneous innervation, fascial compartments, contents of the anterior compartment, and structures passing through the anterior compartment. Specifically, it notes that the arm is divided into anterior and posterior compartments by intermuscular septa, with the anterior compartment containing the biceps brachii, coracobrachialis, and brachialis muscles innervated by the musculocutaneous nerve, as well as the brachial artery, median nerve, ulnar nerve, and other structures passing through.
Slideshow: Anterior Leg
The anterior leg compartment contains four muscles - Tibialis Anterior, Extensor Digitorum Longus, Extensor Hallucis Longus, and Peroneus Tertius. These muscles dorsiflex the ankle and extend the toes, arising from the tibia and fibula and inserting at various points on the foot. They are all supplied by the deep peroneal nerve. Injury to this nerve causes foot drop.
Knee Joint Anatomy
The knee joint is the largest and most complex joint in the body. It consists of three joints: the medial and lateral condylar joints between the femur and tibia, and the patellofemoral joint between the femur and patella. Key structures include the cruciate ligaments which provide stability, menisci which absorb shock and distribute force, and synovial membrane which lines the joint space. The document provides detailed descriptions of the articular surfaces, ligaments, bursae, and other anatomical structures that make up the knee joint.
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Medial and posterior thigh
The document describes the anatomy of the medial and posterior compartments of the thigh. The medial compartment contains the adductor muscles and is innervated by the obturator nerve. The posterior compartment contains the hamstring muscles and is innervated by the sciatic nerve, which separates into the tibial and common peroneal nerves. The popliteal fossa located behind the knee contains structures like the popliteal artery and tibial nerve.
Radial nerve-anatomy
The radial nerve originates from cervical and thoracic nerve roots and is the largest branch of the brachial plexus. It provides cutaneous innervation to the posterior arm and forearm and motor innervation to triceps, brachioradialis, and extensor muscles of the forearm and hand. The radial nerve is vulnerable to compression at the radial tunnel as it travels through the forearm. Compression can cause radial tunnel syndrome. The superficial branch of the radial nerve can be affected by Wartenberg syndrome. Radial nerve palsy can result from fractures, injuries, tumors, or iatrogenic causes.
Sciatic nerve
The sciatic nerve is the longest and largest nerve in the human body. It runs from the lower back through the back of the leg, and down to the toes. Any type of pain and/or neurological symptoms that are felt along the sciatic nerve is referred to as sciatica.
Popliteal fossa & back of thigh
The document describes the anatomy of the popliteal fossa and back of the thigh. It contains the following key points:
1. The popliteal fossa is a diamond-shaped depression on the back of the knee that contains the popliteal artery, vein and tibial nerve.
2. The hamstring muscles originate on the ischial tuberosity and insert on the tibia or fibula. They flex the knee and extend the hip.
3. The sciatic nerve arises in the pelvis and divides into the tibial and common peroneal nerves in the popliteal fossa, supplying muscles of the thigh and leg.
The arm
The arm extends from the shoulder to the elbow. It contains two main compartments - anterior and posterior. The anterior compartment contains the coracobrachialis, biceps brachii, and brachialis muscles which flex the forearm. The posterior compartment contains the triceps brachii muscle which extends the forearm. The elbow joint is a complex joint formed between the humerus, ulna, and radius bones. It allows flexion-extension between the forearm and arm and pronation-supination of the forearm. Blood supply is provided by branches of the brachial artery and its profunda branch with rich anastomoses around the elbow.
4.gluteal region
1. The gluteal region is supplied by cutaneous nerves from the lumbar and sacral plexuses and contains important muscles like the gluteus maximus, medius, and minimus.
2. The piriformis muscle and other structures pass through openings in the pelvis called the greater and lesser sciatic foramina.
3. The inferior and superior gluteal nerves and vessels enter the gluteal region through the greater sciatic foramen to innervate and supply blood to the muscles and skin.
5.posterior compartment of the thigh
The posterior compartment of the thigh contains the hamstring muscles (biceps femoris, semitendinosus, semimembranosus, and part of the adductor magnus), which are supplied by branches from the sciatic nerve. It also contains cutaneous nerves that innervate the skin (medial, posterior, and lateral cutaneous nerves) and veins that drain into the great and small saphenous veins. The blood supply comes from branches of the profunda femoris artery and drains into the profunda femoris vein.
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Sole of foot
The document summarizes the anatomy of the sole of the foot. It describes the skin, superficial and deep fascia including the plantar aponeurosis. It then describes the muscles of the sole which are arranged in four layers - the first layer includes the flexor digitorum brevis, abductor hallucis, and abductor digiti minimi muscles. The second layer includes the quadratus plantae and lumbricals muscles as well as the tendons of the muscles of the leg that insert on the foot.
Anatomy of the foot
The document provides details on the anatomy of the foot, including:
- The sensory nerve supply to the skin of the dorsum comes from the superficial peroneal, deep peroneal, saphenous, and sural nerves.
- The dorsalis pedis artery originates from the anterior tibial artery and runs along the dorsum of the foot, giving off branches.
- The sole of the foot contains 4 layers of muscles and its skin has sensory innervation from the medial and lateral plantar nerves.
- The medial and lateral plantar arteries originate from the posterior tibial artery and supply structures in the sole.
Front of leg
The anterior compartment of the leg contains the muscles that act to dorsiflex and evert the ankle and toes. It includes the tibialis anterior, extensor digitorum longus, and extensor hallucis longus muscles. The anterior tibial artery and deep peroneal nerve also pass through this compartment. Common conditions that can affect this region include anterior leg syndrome from overexertion, foot drop, shin splints, and anterior compartment syndrome.
Ankle joint Anatomy
The ankle joint is a hinge joint that connects the lower leg bones (tibia and fibula) to the foot bone (talus). It is stabilized by strong ligaments including the deltoid ligament medially and the anterior talofibular, calcaneofibular, and posterior talofibular ligaments laterally. The ankle joint allows for two motions: dorsiflexion and plantar flexion powered by various muscles to point the toes up or down. Common injuries include ankle sprains from excessive inversion or eversion stretching the ligaments.
Muscles of the lower limb
The document summarizes the major muscles of the gluteal region, thigh, and leg. It describes the origin, insertion, innervation, and function of muscles that act on the hip, knee, and ankle joints. Key muscles discussed include the gluteus maximus, tensor fascia lata, gluteus medius and minimus, piriformis, obturator internus, semitendinosus, semimembranosus, biceps femoris, iliopsoas, sartorius, quadriceps femoris, gracilis, gastrocnemius, soleus, tibialis anterior, extensor digitorum longus, fibularis long
Peripheral Nerve Injury (Lower Limb)
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- Flexor and extensor muscle groups originate on the humerus, ulna, and radius to flex/extend the elbow, pronate/supinate the forearm, and flex/extend the wrist and fingers.
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Slideshow: Anterior Leg
The anterior leg compartment contains four muscles - Tibialis Anterior, Extensor Digitorum Longus, Extensor Hallucis Longus, and Peroneus Tertius. These muscles dorsiflex the ankle and extend the toes, arising from the tibia and fibula and inserting at various points on the foot. They are all supplied by the deep peroneal nerve. Injury to this nerve causes foot drop.
Knee Joint Anatomy
The knee joint is the largest and most complex joint in the body. It consists of three joints: the medial and lateral condylar joints between the femur and tibia, and the patellofemoral joint between the femur and patella. Key structures include the cruciate ligaments which provide stability, menisci which absorb shock and distribute force, and synovial membrane which lines the joint space. The document provides detailed descriptions of the articular surfaces, ligaments, bursae, and other anatomical structures that make up the knee joint.
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The hamstring muscles are a group of muscles located on the back of the thigh. They include the semitendinosus, semimembranosus, and biceps femoris muscles. Together these muscles act as flexors of the knee and extensors/medial rotators of the hip. They all originate from the ischial tuberosity and are innervated by the tibial nerve. The document provides details on the origin, insertion, action and innervation of each individual hamstring muscle. It also discusses the clinical significance of hamstring injuries and testing.
Medial and posterior thigh
The document describes the anatomy of the medial and posterior compartments of the thigh. The medial compartment contains the adductor muscles and is innervated by the obturator nerve. The posterior compartment contains the hamstring muscles and is innervated by the sciatic nerve, which separates into the tibial and common peroneal nerves. The popliteal fossa located behind the knee contains structures like the popliteal artery and tibial nerve.
Radial nerve-anatomy
The radial nerve originates from cervical and thoracic nerve roots and is the largest branch of the brachial plexus. It provides cutaneous innervation to the posterior arm and forearm and motor innervation to triceps, brachioradialis, and extensor muscles of the forearm and hand. The radial nerve is vulnerable to compression at the radial tunnel as it travels through the forearm. Compression can cause radial tunnel syndrome. The superficial branch of the radial nerve can be affected by Wartenberg syndrome. Radial nerve palsy can result from fractures, injuries, tumors, or iatrogenic causes.
Sciatic nerve
The sciatic nerve is the longest and largest nerve in the human body. It runs from the lower back through the back of the leg, and down to the toes. Any type of pain and/or neurological symptoms that are felt along the sciatic nerve is referred to as sciatica.
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The document describes the anatomy of the popliteal fossa and back of the thigh. It contains the following key points:
1. The popliteal fossa is a diamond-shaped depression on the back of the knee that contains the popliteal artery, vein and tibial nerve.
2. The hamstring muscles originate on the ischial tuberosity and insert on the tibia or fibula. They flex the knee and extend the hip.
3. The sciatic nerve arises in the pelvis and divides into the tibial and common peroneal nerves in the popliteal fossa, supplying muscles of the thigh and leg.
The arm
The arm extends from the shoulder to the elbow. It contains two main compartments - anterior and posterior. The anterior compartment contains the coracobrachialis, biceps brachii, and brachialis muscles which flex the forearm. The posterior compartment contains the triceps brachii muscle which extends the forearm. The elbow joint is a complex joint formed between the humerus, ulna, and radius bones. It allows flexion-extension between the forearm and arm and pronation-supination of the forearm. Blood supply is provided by branches of the brachial artery and its profunda branch with rich anastomoses around the elbow.
4.gluteal region
1. The gluteal region is supplied by cutaneous nerves from the lumbar and sacral plexuses and contains important muscles like the gluteus maximus, medius, and minimus.
2. The piriformis muscle and other structures pass through openings in the pelvis called the greater and lesser sciatic foramina.
3. The inferior and superior gluteal nerves and vessels enter the gluteal region through the greater sciatic foramen to innervate and supply blood to the muscles and skin.
5.posterior compartment of the thigh
The posterior compartment of the thigh contains the hamstring muscles (biceps femoris, semitendinosus, semimembranosus, and part of the adductor magnus), which are supplied by branches from the sciatic nerve. It also contains cutaneous nerves that innervate the skin (medial, posterior, and lateral cutaneous nerves) and veins that drain into the great and small saphenous veins. The blood supply comes from branches of the profunda femoris artery and drains into the profunda femoris vein.
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Sole of foot
The document summarizes the anatomy of the sole of the foot. It describes the skin, superficial and deep fascia including the plantar aponeurosis. It then describes the muscles of the sole which are arranged in four layers - the first layer includes the flexor digitorum brevis, abductor hallucis, and abductor digiti minimi muscles. The second layer includes the quadratus plantae and lumbricals muscles as well as the tendons of the muscles of the leg that insert on the foot.
Anatomy of the foot
The document provides details on the anatomy of the foot, including:
- The sensory nerve supply to the skin of the dorsum comes from the superficial peroneal, deep peroneal, saphenous, and sural nerves.
- The dorsalis pedis artery originates from the anterior tibial artery and runs along the dorsum of the foot, giving off branches.
- The sole of the foot contains 4 layers of muscles and its skin has sensory innervation from the medial and lateral plantar nerves.
- The medial and lateral plantar arteries originate from the posterior tibial artery and supply structures in the sole.
Front of leg
The anterior compartment of the leg contains the muscles that act to dorsiflex and evert the ankle and toes. It includes the tibialis anterior, extensor digitorum longus, and extensor hallucis longus muscles. The anterior tibial artery and deep peroneal nerve also pass through this compartment. Common conditions that can affect this region include anterior leg syndrome from overexertion, foot drop, shin splints, and anterior compartment syndrome.
Ankle joint Anatomy
The ankle joint is a hinge joint that connects the lower leg bones (tibia and fibula) to the foot bone (talus). It is stabilized by strong ligaments including the deltoid ligament medially and the anterior talofibular, calcaneofibular, and posterior talofibular ligaments laterally. The ankle joint allows for two motions: dorsiflexion and plantar flexion powered by various muscles to point the toes up or down. Common injuries include ankle sprains from excessive inversion or eversion stretching the ligaments.
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The sacral plexus is formed from the lumbosacral trunk and the first through fourth sacral ventral rami. It provides motor and sensory nerves to the posterior thigh, lower leg, foot, and pelvis. The most clinically important branches are the sciatic, tibial, and peroneal nerves. The sacral plexus innervates muscles like the gluteals, hamstrings, and muscles of the lower leg and foot. It also provides cutaneous innervation to the posterior thigh, leg, foot, and perineum.
Lower Limb Leg
This document summarizes the anatomy of the leg. It describes that the leg is divided into four compartments - anterior, lateral, superficial posterior, and deep posterior. Each compartment contains specific muscles innervated by nerves like the tibial nerve and deep/superficial peroneal nerves. The anterior compartment contains muscles that dorsiflex the ankle and extend the toes like the tibialis anterior. The lateral compartment contains muscles that evert the foot like the peroneus longus and brevis. The posterior compartments contain plantarflexor muscles like the gastrocnemius, soleus and flexor digitorum longus that are supplied by the posterior tibial artery.
4- Lecture Posterior Comp. of thigh.pdf
- The document provides information about the anatomy of the posterior compartment of the thigh, including the hamstring muscles (biceps femoris, semitendinosus, and semimembranosus) and the sciatic nerve.
- It describes the origin, insertion, nerve supply, and actions of the hamstring muscles. It also details the course and branches of the sciatic nerve as it passes through the pelvis, gluteal region and thigh.
- Safe sites for intramuscular injection are discussed to avoid injury to the sciatic nerve and blood vessels in the region. Causes and effects of sciatic nerve injury are also summarized.
Peripheral Nerves of Upper Limb
This lecture give us an understanding about the pathway of the peripheral nerves that emerges from the brachial and cervical plexus. I also discuss about the motor and cutaneous innervation from these nerves and also some condition relate to peripheral nerve injury.
Anatomy of lumbosacral plexus (by Murtaza Syed)
This document provides an overview of the anatomy of the lumbosacral plexus, which is formed from the combination of the lumbar and sacral plexuses. It describes the roots, branches, divisions, and terminal branches that form the various nerves. These include the femoral, obturator, superior gluteal, inferior gluteal, and sciatic nerves. It also outlines the motor and sensory distributions of the nerves of the lumbosacral plexus to the lower limbs and related structures.
Lumbar plexus (grays anatomy)
The lumbar plexus forms in the psoas major muscle from the anterior rami of nerves L1 to L3 and receives contribution from T12. It gives rise to several nerves that innervate muscles and skin of the lower abdomen, pelvis and thigh. The sacral plexus forms from the anterior rami of S1 to S4 and receives contribution from L4-L5. It gives rise to nerves including the sciatic nerve and gluteal nerves that supply the lower limb and pelvis, and the pudendal nerve which supplies the perineum.
spinal nerves and roots
The document describes the anatomy and clinical presentations of spinal nerve and root lesions. It discusses:
- The anatomy of spinal nerves, with dorsal roots carrying sensory fibers and ventral roots carrying motor fibers.
- Common causes of spinal nerve and root lesions include disc herniations and diseases like Guillain-Barré syndrome.
- Signs and symptoms of lesions vary by level, and may include pain, weakness, or sensory changes in myotomal or dermatomal distributions, as well as depressed reflexes.
- Cervical lesions from C1-C7 are described, noting their sensory and motor involvement. Lumbar lesions from L1-L5 are also outlined.
Posterior abdominal wall
The posterior abdominal wall supports the retroperitoneal organs and contains blood vessels, nerves, muscles and lymph nodes. The abdominal aorta and inferior vena cava are the major blood vessels, branching to supply the organs and muscles. The lumbar plexus lies in the psoas major muscle and provides branches that innervate the abdominal wall and lower limbs. Key muscles of the posterior wall include the psoas major and minor, quadratus lumborum, and iliacus.
Posterior abdominal.wall.pptx anatomy...
The document summarizes key anatomical structures and contents of the lumbar region. It describes the skeletal components including 5 lumbar vertebrae. It discusses the psoas major muscle, lumbar plexus and its branches, as well as major blood vessels including the abdominal aorta and inferior vena cava. The document also briefly mentions the coeliac plexus and its branches that supply the abdominal viscera.
The pelvis and hip
This document discusses the anatomy of the muscles of the pelvis and hip. It describes the origin, insertion, action, and innervation of key hip muscles including the gluteals, hamstrings, hip adductors, and hip flexors. It also covers topics like plexus formation, reversal of muscle function, and the roles of certain muscles in stabilizing the pelvis. The document provides a comprehensive overview of the major muscles involved in movement and control of the hip joint.
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Femoral Nerve
- 1. Femoral Nerve By: Huda Almubarak
- 2. Lumber Plexus Is formed insidePsaos Major with root value (L1, L2, L3, L4) Femoral Nerve Obturator Nerve
- 3. Psaos Major Origin: side of (T2-L5) vertebra and there’s discs. Insertion: lassertrochanter of femur
- 4. Psaos Major Innervations: Anterior rami of lumber nerve (L1, L2, L3) Action: Flexing + stabilizing hip joint
- 5. Femoral nerve - Arises from the lumbar plexus - Descends within the groove between the psoasmajor and iliacusmuscles - Lateral to the femoral artery as it enters the thigh
- 7. Femoral Nerve Supply the frontal area of the thigh Branch: Anterior cutaneus branch. Sapheneus nerve.
- 8. Anterior cutaneus branch. Sensation of the skin of the anterior and median aspect of the thigh Injury: loss of sensation and sympathetic
- 9. Sapheneus nerve Sensation of the skin of patella and median side of the leg and foot Injury: loss of sensation and sympathetic
- 10. Sapheneus
- 11. The Dermatome of the leg
- 12. Femoral nerve injury Paralysis: Quadriceps femoris muscle. Deformity: Flexion of the knee Sensation + Sympathetic: loss of sensation and sympathetic of skin of the anterior and median aspect of the thigh and the skin of patella and median side of the leg and foot
- 13. Femoral nerve entrapments Herniation of inter vertebral discs (L2/L3 or L3/L4) At the level of inguinal ligament (femoral nerve neuropathy) This may result in: Weak extension of the knee Weak patellar tendon reflex (L4 level reflex) Cutaneous sensory changes (anterior thigh & L4 dermatome)