This document provides an overview of the skeletal and muscular systems. It begins by labeling the parts of a long bone, then describes the two groups that make up the skeletal system - the axial skeleton and appendicular skeleton. The axial skeleton includes the skull, ribs, sternum, and vertebral column. It then details the specific bones that make up these areas. The appendicular skeleton attaches to the axial skeleton and includes the pectoral girdle, upper limbs, pelvic girdle, and lower limbs. The document also outlines the functions of the skeletal system and describes the four types of bones. It defines anatomical terminology and discusses the roles of connective tissues like cartilage, ligaments, and tendons. Finally
Bones of Trunk (Human Anatomy)
by DR RAI M. AMMAR
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Bones of Trunk (Human Anatomy)
by DR RAI M. AMMAR
www.facebook.com/drraiammar
www.twitter.com/drraiammar
www.instagram.com/drraiammar
www.linkedin.com/in/drraiammar
www.themedicall.com/blog/auther/drraiammar/
For Any Book or Notes Visit Our Website:
www.allmedicaldata.wordpress.com
www.drraiammar.blogspot.com
YOUTUBE CHANNEL :
https://www.youtube.com/channel/UCu-oR9V3OdFNTJW5yqXWXxA
ANY QUESTION ??
Get in touch with us at Any of the Above Social Media or Email at
drraiammar@gmail.com
allmedicaldata@gmail.com
This is the skeletal system lesson PowerPoint from my Human Body Systems unit from the website www.sciencepowerpoint.com. This lesson investigates the skeletal system and includes activities, homework bundle, lesson notes, games, and much more. This PowerPoint is one small part of Human Body System Unit that includes a 13 part 8,500 slide PowerPoint.
This is an introduction to osteology. The objectives of this presentation are to provide an overview of the skeletal system and the three main classifications of bones which include: morphological, histological, and developmental classifications.
For further reading please refer to Keith Moore - Clinically Oriented Anatomy and Snell's Clinical Anatomy by Regions.
1. Unit - 7- Skeleton anatomy by Thiru muruganthiru murugan
The Skeletal System
By Thiru murugan. M
Unit – 7: Anatomy - The Musculoskeletal system:
The Skeletal system
Anatomical positions
Bones: types, structure, growth and ossification
Axial and appendicular skeleton
Joints: classification, major joints and structure
Application and implications in nursing
The Muscular system:
Types and structure of muscles
Muscle groups: muscles of the head, neck, thorax, abdomen, pelvis, upper limb and lower limbs
Principal muscles: deltoid, biceps, triceps, respiratory, abdominal, pelvic floor muscles, gluteal muscles and vastus lateralis
Major muscles involved in nursing procedures
Skeletal system:
The human skeletal system consists of all of the bones, cartilage, tendons, and ligaments in the body
It Provide framework of the body.
Altogether, the skeleton makes up about 20% of a person's body weight. An adult's skeleton contains 206 bones.
It providing support and protection for the internal organs
The skeletal system also provides attachment points for muscles to allow movements at the joints.
Components of skeletal system:
Cartilage: This smooth and flexible substance covers the tips of your bones where they meet. It enables bones to move without friction (rubbing against each other).
Functions of Cartilage:
Model for bone growth in embryo & fetus
Provides a smooth cushion between adjacent bones
Provides firm flexible support (nose, ears, ribs & trachea)
Excellent shock absorber
Ligaments: Bands of strong connective tissue called ligaments hold bones together.
Functions of Ligaments:
Attach bones to bones
Provide stability
Tendons: Tendons are bands of tissue that connect the ends of a muscle to your bone.
Functions of Tendons:
Attach muscles to bones
Anchors muscle to bone for movement
Joints: A joint is where two or more bones in the body come together.
Anatomical position:
Anatomical position, or standard anatomical position, refers to the positioning of the body when it is standing upright and facing forward with each arm hanging on either side of the body, and the palms facing forward. The legs are parallel, with feet flat on the floor and facing forward.
Bones – types, structure, growth and ossification:
Bones:
Bone are specialized forms of strong connective tissue that forms the skeleton of the body.
It is composed of calcium phosphate and calcium carbonate.
It also serves as a storage area for calcium, playing a large role in calcium balance in the blood
The smallest bone in the human body is called the stirrup or stapes bone, located deep inside the ear & The longest bone in the human is called the femur.
Classification or types of bones:
Bones are divided into 5 types.
Long Bone
Short Bone
Flat Bone
Irregular Bone
Sesamoid Bone
1. Long Bone:
A long bone is one that is cylindrical in shape, being longer than it is wide.
Shape of a bone, not its size.
Long bones are found in: Arms (humerus, ulna, radius) & fingers (metacarpals, phalanges) and also Legs (femur, tibia, fibula),
Throughout history, the symbol of the skull and crossbones has served as a representation of mortality, likely owing to the fact that following death and decay, bones are the sole remnants. Many individuals perceive bones as inert, desiccated, and fragile. While these attributes accurately portray the bones of a preserved skeleton, the bones within a living human being are profoundly alive. Living bones exhibit strength and flexibility, serving as the primary components of the skeletal system.
The Ear:
• It is the organ that detects sound.
• It not only receives sound, but also aids in balance and body position.
• Part of the auditory system.
• Transforms sound waves (air pressure) into electrical impulses in the brain
Outer Ear:
• Includes:
• The pinna or auricle (the fleshy visible outer ear)
• The ear canal
• The outer layer of the tympanic membrane (ear drum)
Middle Ear:
• An air-filled cavity behind the tympanic membrane, includes three bones (ossicles):
• The malleus; or hammer
• Incus; or anvil
• Stapes; or stirrup
• Connects to the throat via the Eustachian tube
Inner Ear:
• Responsible for sound detection and balance
• it consists of the bony labyrinth, a hollow cavity in the skull with a system of passages comprising two main functional parts:
• The cochlea, dedicated to hearing
• The vestibular system, dedicated to balance
o The Cochlea: Auditory portion of the inner ear
o Spiral-shaped coil
o Inside the bony labyrinth
o Filled with a watery liquid
o As the fluid moves, the Organ of Corti moves
o Organ of Corti: the structure that transduces pressure waves to action potentials
o Specific fibers resonate to sound frequencies and cause Hair Cells to move, which send signals through the Cochlear Nerve onto the brain
o Louder Sounds cause more Hair Cells to move
o Our Brains interpret all this raw data
Balance (Vestibular System):
• Balance is controlled through signals to the brain from your eyes, the inner ear, and the sensory systems of the body (such as the skin, muscles, and joints).
• This balance system is also known as the vestibular system.
• In the inner ear, the balance system consists of three canals (semicircular canals)
• Semicircular shape
• contain fluid
• “sensors” that detect rotational movement of the head.
• Each canals lies at a different angle and is situated at a right angle to each other.
• deal with different movement: up-and-down, side-to-side, and tilting from one side to the other.
• All contain sensory hair cells that are activated by movement of inner ear fluid (endolymph).
• As the head moves, hair cells in the semicircular canals send nerve impulses to the brain by way of the acoustic nerve.
• The nerve impulses are processed in the brain to help us know where we are in space or if we are moving.
• Located near the semicircular canals are the utricle and the saccule.
• The ends of the semicircular canals connect with the utricle,
• the utricle connects with the saccule.
• The semicircular canals provide information about movement of the head.
• The sensory hair cells of the utricle and saccule provide information to the brain about head position when it is not moving.
• The utricle is sensitive to change in horizontal motion
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3. Chapter 17, Human Physiology by Lauralee Sherwood, 9th edition
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RESULTS: Overall life span (LS) was 2252.1±1742.5 days and cumulative 5-year survival (5YS) reached 73.2%, 10 years – 64.8%, 20 years – 42.5%. 513 LCP lived more than 5 years (LS=3124.6±1525.6 days), 148 LCP – more than 10 years (LS=5054.4±1504.1 days).199 LCP died because of LC (LS=562.7±374.5 days). 5YS of LCP after bi/lobectomies was significantly superior in comparison with LCP after pneumonectomies (78.1% vs.63.7%, P=0.00001 by log-rank test). AT significantly improved 5YS (66.3% vs. 34.8%) (P=0.00000 by log-rank test) only for LCP with N1-2. Cox modeling displayed that 5YS of LCP significantly depended on: phase transition (PT) early-invasive LC in terms of synergetics, PT N0—N12, cell ratio factors (ratio between cancer cells- CC and blood cells subpopulations), G1-3, histology, glucose, AT, blood cell circuit, prothrombin index, heparin tolerance, recalcification time (P=0.000-0.038). Neural networks, genetic algorithm selection and bootstrap simulation revealed relationships between 5YS and PT early-invasive LC (rank=1), PT N0—N12 (rank=2), thrombocytes/CC (3), erythrocytes/CC (4), eosinophils/CC (5), healthy cells/CC (6), lymphocytes/CC (7), segmented neutrophils/CC (8), stick neutrophils/CC (9), monocytes/CC (10); leucocytes/CC (11). Correct prediction of 5YS was 100% by neural networks computing (area under ROC curve=1.0; error=0.0).
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2. Warm Up Label the Long bone
• epiphysis
• spongy bone
• articular cartilage
• diaphysis
• compact bone
• bone marrow
• Marrow cavity
• blood vessel
• periosteum
I
3. Answers
• A-diaphysis
• B-epiphysis
• C-spongy bone
• D-articular cartilage
• E- spongy bone
• F-compact bone
• G- Bone marrow
• H- periosteum
• I- Marrow cavity
4. The Skeletal System: divided into two groups,
the axial and appendicular skeleton for a total of
206 bones in the body.
I. The Axial Skeleton:
consists of 80
bones that revolve
around the vertical
axis of the
skeleton.
*skull, ribs, sternum and
vertebral column
5. A. Bones of the Axial Skeleton
1. The Skull
A. Cranial bones (8):
*frontal (1)
*parietal (2)
*temporal (2)
*sphenoid (1)
*ethmoid (1)
*occipital (1)
http://www.learnbones.com/skull-cranial-and-facial-bones-anatomy
6. A. Bones of the Axial Skeleton
B. Facial Bones (14):
*mandible (1)
*maxilla (2)
*zygomatic bone (2)
*nasal bone (2)
*lacrimal (2)
*palatine (2
*inferior nasal concha
(2)
*volmer (1)
7. A. Bones of the Axial Skeleton
2. Thoracic cage (25):
*sternum (1)
*true ribs (14)
articulate with the
sternum directly.
*false ribs (6)
*floating ribs (4)
8. A. Bones of the Axial Skeleton
3. Vertebral Column
(26):
*cervical vertebrae (7)
*thoracic vertebrae (12)
*lumbar vertebrae (5)
*sacrum (5 fused)
*coccyx (4 fused)
9. II. The Appendicular Skeleton: consists of
126 bones that append to the axial skeleton.
A. Bones of the
Appendicular
Skeleton
1. Pectoral girdle (4)
*clavicle (2)
*scapula (2)
10. A. Bones of the Appendicular
Skeleton
2. The Upper Limb (60)
*humerus (2)
*radius (2)
*ulna (2)
*carpals (16)
*metacarpals (10)
*phalanges (28)
11. A. Bones of the Appendicular
Skeleton
3. Pelvic Girdle (2)
3 fused pairs
*ilium
*ischium
*pubis
12. A. Bones of the Appendicular
Skeleton
4. Lower limb (60)
*femur (2)
*patella (2)
*tibia (2)
*fibula (2)
*tarsal (14)
*metatarsals (10)
*phalanges (28)
13. III. Functions of the Skeletal System
A. Axial Skeleton
Functions:
*protects the brain and
internal organs.
*provides structure and
support
*attachment for muscles
14. III. Functions of the Skeletal System
B. Appendicular
Skeleton Functions:
*protection
*attachment for muscles
*support and movement
*blood cell formation
15. IV. Types of Bones
1. Long Bones: those
that are longer than
they are wide.
*femur, tibia, fibula
*humerus, radius, ulna
*clavicle
*metacarpals
*metatarsals
*phalanges
16. 2. Short Bones: are as wide as they are long.
*tarsals of the foot
*carpals of the hand
17. 3. Flat Bones: broad flat plates used for protection
and muscular attachment. Most RBC’s are
produce in flat bones.
*skull
*rib cage
*sternum
*scapula
*pelvis
*os coxae (hip bone)
18. 4. Irregular Bones: have peculiar shapes and
cannot be grouped in the other bone categories.
*verterbrae
*sacrum
*coccyx
*mandible
*maxilla
*hyoid
21. V. Anatomical Terminology
1. Anterior: towards the
front.
2. Posterior: towards
the back.
3. Superior: towards
the head.
4. Inferior: towards the
feet.
5. Proximal: nearest;
closer to any point of
reference.
6. Distal: remote; farther
from any point of
reference.
7. Lateral: point that is
more distant from the
median plane.
8. Medial: point that is
closer to the median
plane
23. VI. Connective Tissue
1. Cartilage: a flexible
connective tissue
found between the
bones of joints. It
acts as a cushion
between joints and
reduces friction in
movement.
24. VI. Connective Tissue
2. Ligament: dense,
flexible tissue that
connects bone to
bone at a joint.
26. VII. Joint: point where two or more bones articulate
allowing movement and mechanical support.
A. Types of Joints
1. Fibrous: held
together by fibrous
connective tissue.
Usually immovable
or slightly moveable.
Ex. Suture joints
between cranial
bones and distal
joint of tibia and
fibula.
28. 3. Synovial: freely movable joints characterized by
a synovial cavity (joint cavity) containing synovial
fluid.
Features of Synovial
Joints:
a. Articular cartilage:
(hyaline cartilage)
covers the ends of
bones.
b. Synovial membrane:
surrounds the
synovial cavity.
29. c. Articular Capsule: is composed of the synovial
membrane and the fibrous capsule.
d. Bursae: fluid filled
sac that cushions and
reduces friction
between moving
structures.
e. Meniscus: disperses
the weight of the body
and reduces friction in
the joint.
30. Types of Synovial joints
1. Hinge: allow flexion
and extension along
one plane.
*elbow
*knee
*ankle
*joints in the fingers
31. Types of Synovial joints
2. Ball and Socket:
allow all movements
except gliding.
*hip
*shoulder
32. Types of Synovial joints
3. Condyloid: allow
flexion, extension,
abduction, adduction
and circumduction.
*wrist
*between the
metacarpals and
phalanges.
33. Types of Synovial joints
4. Pivot: one bone
rotates about another.
*the neck
*radius and ulna
34. Types of Synovial joints
5. Gliding: permit
sliding and gliding
movements.
*spine
*wrist
*ankles
*clavicle
35. Types of Synovial joints
6. Saddle: same
movement as
condyloid joints.
*thumb
36. Write a 1 page essay
outlining the function of
connective tissue.
Discuss the role played
by cartilage, ligaments and
tendons citing examples from
specific joints.
37. The Muscular System
I. Characteristics of
muscle tissue
*contractibility-ability of
the muscle to shorten.
*extensibility: ability of
the muscle to
lengthen.
*elasticity: ability of the
muscle to return to it’s
normal size.
38. I. Characteristics of muscle tissue
* atrophy-a decrease in
the size of muscle
tissue.
* hypertrophy-an
increase in the size of
muscle tissue.
* Controlled by nerve
tissue and fed by
capillaries.
39. II. Types of Muscle Tissue
A. Smooth: Involuntary
muscle that lines the
walls of hollow
organs, blood
vessels and the
digestive tract.
40. II. Types of Muscle Tissue
B. Cardiac: involuntary
striated muscle
responsible for
rhythmic contractions
of the heart.
41. II. Types of Muscle Tissue
C. Skeletal: Voluntary
striated muscle that is
responsible for
movement.
44. IV. Muscle Attachment
1. Origin: the point of
attachment of a
muscle tendon to a
stationary bone.
2. Insertion: point of
attachment of a
muscle tendon to a
movable bone.
45. Muscles of the anterior portion of the body
Deltoid
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