Chapter 1 - Applied Anatomy And Physiology Flashcards
(42 cards)
What is the skeleton?
- provides a framework for movement
- made up of bones and different joints
Musculoskeletal system
When the muscular system and the skeletal system work together to allow movement at joints
Flat bones
- Often quite large
- protect vital organs
- pelvis
- cranium
- scapula
- sternum
- ribs
- clavicle (collar bone)
- jaw bone
- talus
Long bones
- enable large movements
- femur (thigh bone)
- tibia (shin bone) & fibula
- metatarsals & phalanges (toes)
- radius & ulna
- humerus
- metacarpals & phalanges (fingers)
Short bones
- enable finer controlled movements
- tarsals
- carpals
Irregular bones
- shaped to protect
- vertebrae (protect spinal cord)
- patella
Articulating bones
Bones that meet at a joint to enable movement
Articulating bones at the shoulder
Scapula, clavicle, humerus
Articulating bones at the elbow
Humerus, radius, ulna
Articulating bones at the hips
Pelvis, femur
Articulating bones at the knee
Femur, patella, fibula, tibia
Articulating bones at the ankle
Tibia, fibula, talus
What are the 6 functions of the skeleton?
- Support
- Protection
- Movement
- Shape and structure
- Blood cell production
- Storage of minerals
Support of the skeleton
- Support for muscles and vital organs
- without support the body would be a mass of soft tissue and unable to move
Protection of vital organs
-reduces chance of injury during physical activity
Movement
- The ability to move is central to all physical activities
- occurs when muscles contract and pull on bones
Shape & structure
-maintains basic form of our body and provides something for muscles to attach onto
Blood cell production
- takes place in bone marrow
- red blood cells carry oxygen to working muscles in aerobic activities
- white blood cells fight off infections
Storage of minerals
- essential for major body functions
- general health of an athlete
Synovial joints
- An area of the body where two or more articulating bones meet.
- Found at the shoulder, knee, hip, elbow and ankle
Tendon
Join muscle to bone
Non elastic cords
Ligament
Join bone to bone
Elastic fibre that keep joints stable by restricting movement
Joint capsule
Tissue that stops synovial fluid from escaping and encloses, supports and holds bones together
Synovial membrane
The lining inside the joint capsule that releases synovial fluid