The document discusses the skeletal system, including bones, joints, and cartilage. It covers the structure and function of bones, classification of bones based on shape, and common bone diseases. The skeletal system has 206 bones and is divided into the axial skeleton (skull, vertebral column, rib cage) and appendicular skeleton (limbs and girdles). Bones provide structure, protection, movement, mineral storage, and blood cell formation. There are four types of bones based on shape - long, short, flat, and irregular. Joints allow movement and come in three types - fibrous, cartilaginous, and synovial. Common bone diseases include arthritis.
The human skeleton is the internal framework of the human body. It is composed of around 270 bones at birth – this total decreases to around 206 bones by adulthood after some bones get fused together. The bone mass in the skeleton makes up about 14% of the total body weight and reaches maximum density around age 21
BONE – AN INTRODUCTION
A bone is a rigid organ that constitutes part of the vertebrate skeleton.
There are around 270 to 300+ bones in Infants which gets reduced to 206 bones in adults.
Bones are dynamic structures that are undergoing constant change and remodelling in
response to the ever-changing environment.
Bones support and protect the various organs of the body, produce red and white blood cells,
store minerals, provide structure and support for the body, and enable mobility.
It has a honeycomb-like matrix internally, which helps to give the bone rigidity.
The largest bone in the body is the femur or thigh-bone, and the smallest is the stapes in
the middle ear.
The human skeleton is the internal framework of the human body. It is composed of around 270 bones at birth – this total decreases to around 206 bones by adulthood after some bones get fused together. The bone mass in the skeleton makes up about 14% of the total body weight and reaches maximum density around age 21
BONE – AN INTRODUCTION
A bone is a rigid organ that constitutes part of the vertebrate skeleton.
There are around 270 to 300+ bones in Infants which gets reduced to 206 bones in adults.
Bones are dynamic structures that are undergoing constant change and remodelling in
response to the ever-changing environment.
Bones support and protect the various organs of the body, produce red and white blood cells,
store minerals, provide structure and support for the body, and enable mobility.
It has a honeycomb-like matrix internally, which helps to give the bone rigidity.
The largest bone in the body is the femur or thigh-bone, and the smallest is the stapes in
the middle ear.
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Skeletal system. anatomy and physiology of skeletal system. appendicular skel...mamtabisht10
SKELETAL SYSTEM
bones, cartilage and ligaments are tightly joined to form a strong, flexible framework called skeletal system
anatomy and physiology of axial and appendicular skeletal system
Axial Skeleton: The axial skeleton includes the skull, spine, ribs and sternum.
Appendicular Skeleton:
The appendicular skeleton includes the appendages of the body, which are the shoulders, arms, hips, and legs.
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The topic includes:
definition and function bone
classification of bone according to shape, development, region and structure
gross structure of long bone
parts of a bone (epiphysis, diaphysis, metaphysis and epiphysial plate of cartilage)
blood supply of bone
growth of a long bone
A detail account of Bones, their histological features, classification, composition, Formation, blood and nerve supply, functions, plus some interesting facts about bones.
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skeleton of human body, skeletal system of human body, skeleton anatomy, introduction to skeleton, axial skeleton, cranium, cranial bone mnemonic for cranial bone, bone of skeleton system, 206 bones by dr shahid alam, dr shahid, shahid alam, alam
Skeletal system. anatomy and physiology of skeletal system. appendicular skel...mamtabisht10
SKELETAL SYSTEM
bones, cartilage and ligaments are tightly joined to form a strong, flexible framework called skeletal system
anatomy and physiology of axial and appendicular skeletal system
Axial Skeleton: The axial skeleton includes the skull, spine, ribs and sternum.
Appendicular Skeleton:
The appendicular skeleton includes the appendages of the body, which are the shoulders, arms, hips, and legs.
Anatomic terminology, anatomical position, anatomical planes, anatomical term...Dr Shahid Alam
Anatomic terminology, anatomical position, anatomical planes, anatomical term, language of anatomy, Anatomy lecture BD Chaurasia, Snell Anatomy By Dr Shahid Alam
The topic includes:
definition and function bone
classification of bone according to shape, development, region and structure
gross structure of long bone
parts of a bone (epiphysis, diaphysis, metaphysis and epiphysial plate of cartilage)
blood supply of bone
growth of a long bone
A detail account of Bones, their histological features, classification, composition, Formation, blood and nerve supply, functions, plus some interesting facts about bones.
The musculoskeletal system is made up of bones, cartilage, ligaments, tendons and muscles, which form a framework for the body. Tendons, ligaments and fibrous tissue bind the structures together to create stability, with ligaments connecting bone to bone, and tendons connecting muscle to bone.
The musculoskeletal system Anatomy and physiologykajal chandel
The musculoskeletal system is made up of bones, cartilage, ligaments, tendons and muscles, which form a framework for the body. Tendons, ligaments and fibrous tissue bind the structures together to create stability, with ligaments connecting bone to bone, and tendons connecting muscle to bone.
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5. Introduction
• One of the most remarkable tissues of the
human body
• Far from inert and lifeless, bones are living,
dynamic structures
• Bones serve a wide variety of very diverse
functions within us
• Noted for their strength and resiliency
during life, bones will remain after we are
long gone
10. Skeletal Cartilages
• Initially our skeleton is made up of
cartilages and fibrous membranes
• Gradually our skeletal cartilages are
replaced by bone
• Upon reaching adulthood the skeleton
becomes almost fully ossified
• Only a few cartilages remain in the adult
skeleton
11. Basic structure, type & location
• A skeletal cartilage is made of some variety
of cartilage tissue
• Each type contains a high proportion of
water which makes them resilient
• Cartilage has no nerves or blood supply
• It is surrounded by a dense tissue
membrane called a perichondrium
12. Basic structure, type & location
• There are three types of cartilage tissue:
hyaline, elastic, and fibrocartilage
• Each contains a matrix of jellylike ground
substance and fibers
15. Function of Bones
• Support • Bones provide a hard
framework that
supports the body
• Bones provide support
for internal organs
16. Function of Bone
• Protection • Fused bones provide a
brain case that protects
this vital tissue
• Spinal cord is
surrounded by
vertebrae
• Rib cage protects vital
organs
17. Function of Bone
• Movement • Skeletal muscle
attached to bones use
the bones as levers to
move the body
• Arrangement of bones
and joints determine
the movements
possible
18. Function of Bones
• Mineral Storage • Bone serves as a
mineral reservoir
• Phosphate and calcium
ions can be released
into the blood steam for
distribution
• Deposition and removal
are ongoing
19. Function of Bones
• Blood cell formation • Hematopoiesis occurs
within the marrow
cavities of the long
bones
• The majority of
hematopoiesis occurs in
bones
21. Classification of Bone:
• Bones vary in shape and size
• The unique shape of each bone fulfills a
particular need
• Bones are classified by their shape as long,
short, flat, or irregular bone
• Bones differ in the distribution of compact
and spongy osseous tissues
30. Axial skeleton supports and protects organs of head,
neck and trunk
Axial skeleton:
skull (cranium and facial bones)
hyoid bone (anchors tongue and muscles
associated with swallowing)
vertebral column (vertebrae and disks)
bony thorax (ribs and sternum)
Appendicular skeleton includes bones of limbs and
bones that anchor them to the axial skeleton
Appendicular skeleton:
pectoral girdle (clavicles and scapulae)
upper limbs (arms)
pelvic girdle (sacrum, coccyx)
lower limbs (legs)
Articulation- where joints meet, connect, and are formed.
31. 22 bones in skull
6 in middle ears
1 hyoid bone
26 in vertebral column
25 in thoracic cage
4 in pectoral girdle
60 in upper limbs
60 in lower limbs
2 in pelvic girdle
206 bones in all
48. Joints
• Fibrous-Fibrous joints connect bones without
allowing any movement. The bones of your
skull and pelvis are held together by fibrous
joints.
• Cartilaginous-Cartilaginous joints are joints
in which the bones are attached by cartilage.
These joints allow for only a little movement,
such as in the spine or ribs.
• Synovial-Synovial joints allow for much more
movement than cartilaginous joints. Cavities
between bones in synovial joints are filled
with synovial fluid. This fluid helps lubricate
and protect the bones. Bursa sacks contain
the synovial fluid. within fixed limits
49. • A joint, or articulation, is the place
where two bones come together.
• There are three types of joints
classified by the amount of
movement they allow:
Immovable
slightly movable
freely movable
50. Types of Joints
Hinge- A hinge joint allows extension and
retraction of an appendage. (Elbow, Knee)
51. Ball and Socket- A ball and socket joint
allows for radial movement in almost
any direction. They are found in the hips
and shoulders. (Hip, Shoulder)
52. Gliding- In a gliding or plane joint bones
slide past each other. Mid-carpal and mid-
tarsal joints are gliding joints. (Hands,
Feet)
53. Saddle- This type of joint occurs when the
touching surfaces of two bones have both
concave and convex regions with the shapes
of the two bones complementing one other
and allowing a wide range of movement.
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