osteology of clavicle
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The clavicle is a modified long bone located horizontally between the sternum and acromion process. Its medial end articulates with the manubrium to form the sternoclavicular joint and its lateral end articulates with the acromion process to form the acromioclavicular joint. It serves to support the shoulder girdle and allows the arm to swing freely from the trunk while also transmitting the weight of the upper limb through both joints.
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The clavicle and scapula are summarized as follows:
1. The clavicle has a shaft with medial and lateral ends that articulate with the sternum and acromion respectively. It is the first bone to ossify and provides attachments for muscles like the deltoid and pectoralis major.
2. The scapula is a flat, triangular bone with three angles, three processes, and two surfaces. It has attachments for rotator cuff and back muscles. The glenoid fossa articulates with the humerus to form the shoulder joint.
3. Both bones ossify from primary and secondary centers, with the clavicle being the first bone to start
Clavicle fracture
1. Fractures of the clavicle and scapula are uncommon but can result from high-energy trauma.
2. Clavicle fractures most commonly occur in the middle third and are usually treated conservatively with sling immobilization.
3. Scapula fractures involve the body, neck, glenoid, coracoid, or acromion and are often associated with life-threatening injuries requiring assessment by ATLS protocols. Most are also treated initially with sling immobilization.
Clavicle fracture
1. The clavicle is the only long bone that lies horizontally in the body and connects the thorax to the shoulder girdle.
2. Clavicle fractures are classified based on their location as medial, middle, or lateral thirds. Common causes are falls on an outstretched hand or lateral shoulder.
3. Treatment depends on the fracture type and patient factors, ranging from sling immobilization to surgical fixation with plates or screws.
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The document provides an overview of the musculoskeletal and integumentary systems of the upper limb. It describes the bones, joints, muscles, fascia, vessels and innervation of the shoulder, arm, forearm and hand. Key points include the bones that make up the pectoral girdle (clavicle and scapula), bones of the arm (humerus), forearm (ulna and radius), wrist (carpal bones), palm (metacarpals) and fingers (phalanges). The document also discusses the fascia, muscles, vessels and cutaneous innervation of the upper limb.
Clavicle
The document discusses the clavicle bone. It is located in the thoracic region above the first rib. The clavicle is curved like the letter S and connects the sternum to the acromion of the scapula. It has three main functions: attaching the upper limb to the trunk, protecting underlying structures supplying the upper limb, and transmitting force from the upper limb to the axial skeleton. The clavicle can be divided into the sternal end, shaft, and acromial end, each with their own landmarks and articulation points.
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Clavicle anatomy consists of medial end, middle and lateral end. There are many ligaments and muscles connecting to these parts of clavicle.
01 Bones of upper limb.ppt111111111111111
The upper limb bones include the pectoral girdle (clavicle and scapula), humerus of the arm, radius and ulna of the forearm, carpal bones of the wrist, and metacarpals and phalanges of the hand. The clavicle connects the upper limb to the trunk and allows for free movement. The scapula forms the shoulder joint with its glenoid cavity. The humerus is the largest bone and connects to the radius and ulna at the elbow. The forearm bones connect to the carpal bones at the wrist. The metacarpals connect to the phalanges to form the fingers. Each bone has specific features and artic
Skeletal System 2
The thoracic cage consists of the thoracic vertebrae, sternum, and ribs, forming a conical enclosure for the lungs and heart. It has a broad base and narrow apex, and is expanded during breathing to draw air into the lungs. The sternum is a bony plate anterior to the heart, consisting of the manubrium, body, and xiphoid process. There are 12 pairs of ribs attached posteriorly to the vertebrae and anteriorly to the sternum or other ribs. The pectoral girdle includes the clavicles and scapulae, supporting the arms.
The clavicle
1. The clavicle is the only long bone that lies horizontally and has no medullary cavity. It is the first bone to start ossifying in the fetus and the last bone to finish ossifying at age 25.
2. The clavicle has two ends - the lateral end articulates with the acromion at the acromioclavicular joint, while the medial end articulates with the manubrium of the sternum at the sternoclavicular joint.
3. Fractures of the clavicle most commonly occur just lateral to the midpoint, where the two curves of the bone meet.
Femur (Gross Anatomy)
The femur is the longest and heaviest bone in the body. It consists of a shaft and superior and inferior ends. The superior end has a head, neck, and two projections (greater and lesser trochanters). The head articulates with the pelvis. The neck attaches to the shaft at a 125 degree angle. The greater and lesser trochanters provide muscle attachment sites. The shaft has a prominent ridge (linea aspera) and diverging margins. The inferior end forms the medial and lateral condyles, which articulate with the tibia at the knee joint. Fractures commonly occur at the femoral neck, greater trochanter, or shaft.
Anatomy of Upper extremity
This document describes the anatomy of the upper limb, including bones, joints, muscles, nerves and vasculature. It provides details on the boundaries, bones and fractures of the upper limb. It discusses the origins, insertions and actions of muscles that move the shoulder, arm, forearm, wrist and hand. It describes the rotator cuff muscles, common injuries like tennis elbow and fractures of the scaphoid bone and supracondylar humerus. The document concludes with an overview of the arteries of the upper limb including the axillary, brachial, radial and ulnar arteries and their branches.
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Radius and ulna upper limb bone (Part-3)
Radius and ulna anatomy and clinical anatomy details PPT by Purvi Shah.
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Skeleton of the upper limb
The document summarizes the bones that make up the skeleton of the upper limb. It describes the pectoral girdle which includes the clavicle and scapula. It then details each of the bones of the free part of the upper limb including the humerus, radius, ulna, carpals, metacarpals and phalanges. For each bone, it outlines the key anatomical features, processes, surfaces and clinical implications such as common sites of fracture.
Anatomy pectoral arm02122010
This document provides an overview of the anatomy of the arm and pectoral region. It describes the origins, insertions, innervations, and actions of muscles like the latissimus dorsi, pectoralis major and minor, serratus anterior, biceps brachii, triceps brachii, brachialis, and coracobrachialis. It also details the fascia, compartments, and structures of the arm, forearm, cubital fossa, and pectoral region including bones, muscles, vessels and nerves.
Upper limb bones.pptx
The document describes the bones of the upper limb, including the clavicle, scapula, and humerus. It provides details on the anatomy of each bone, including their landmarks, articulations, and muscle attachments. Key points covered include the S-shape of the clavicle, triangular shape of the scapula with spine and fossae, articulation of humerus at shoulder and elbow joints, and distal landmarks like epicondyles and fossae. Mnemonics are provided to help remember muscle attachments and relationships between structures.
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osteology of clavicle
- 1. ๏ฝ OSTEOLOGY OF CLAVICLE (by kd)
- 3. ๏ฝ Latin , it means small key ๏ฝ modified long bong placed horizontally ๏ฝ Has a cylindrical part called shaft ๏ฝ Medial end articulates with the clavicular notch of manubrium sterni to form sternoclavicular joint. (sternal end)
- 5. ๏ฝ Lateral end articulates with the acromion process to form the acromioclavicular joint ๏ฝ No medullary cavity ๏ฝ First bone to start to ossify (membrane) ๏ฝ Two primary centre of ossification ๏ฝ Pierced by the middle supraclavicular nerve
- 7. ๏ฝ Support the shoulder so that the arm can swing clearly away from the trunk. ๏ฝ Receive the weight of the weight of upper limb via lateral one third through the coracoclavicular ligament ๏ฝ Transmit weight of upper limb the axial skeletal via medial 2/3 part
- 9. ๏ฝ Lateral end = flat ๏ฝ Medial end = large and quadrilateral ๏ฝ Shaft is curved slightly ๏ฝ Medial 2/3 = convex forwards ๏ฝ Lateral 1/3 = concave forwards ๏ฝ Inferior surface is grooved longitudinally in its medial third
- 10. ๏ฝ 2 border , anterior (concave forward) and posterior (convex backward) ๏ฝ 2 surface , superior (subcutaneous) and inferior ( conoid tubercle and trapezoid ridges) ๏ฝ Origin in anterior border = deltiod ๏ฝ Insertion in posterior border = trapezius ๏ฝ Conoid tubercle and trapezius ridges give attachment to coracoclavicular ligament
- 11. ๏ฝ 4 surface , anterior (convex forward ) , posterior (smooth) , superior (rough ), inferior (rough oval impression ) ๏ฝ Lateral half of the inferior surface = subclavian groves ๏ฝ Nutrient foremen lies at the lateral end of grooves
- 12. ๏ฝ Anterior surface give origin to the pectoralis major ๏ฝ Half of rough superior surface give origin to clavicular head of sternocleidomastiod ๏ฝ Oval impression on the inferior surface gives attachment to costoclavicular ligament ๏ฝ Posterior surface close to medial end gives origin to sternohyoid muscle
- 13. ๏ฝ Subclavian grooves is for insertion of subclavius muscle. ๏ฝ Subclavian vessel and cord of brachial plexus pass toward the axilla lying between the inferior surface of clavicle and upper surface of 1st ribs.
- 14. ๏ฝ Fracture by falling on the outstreched hand ๏ฝ Common site of fracture is junction between the two curvature of the bone (weakest point) ๏ฝ Lateral fragment is displaced downward by the weight of limbs ๏ฝ Cliedocranial dysostosis , clavicle may be congenitally absent or imperfectly developed