SOC12 The Skeletal System Flashcards
What are the 5 functions of the skeletal system?
• Protection of vital organs
• Muscle attachment
• Joints for movement
• Storing calcium and phosphorus
• Red and white blood cell production
What are the bones in your spine?
- Cervical (7)
- Thoracic (12)
- Lumbar (5)
- Sacrum (5)
- Coccyx (4)
What are the bones located in your hand/wrist?
Carpals
metacarpals
phalanges
What are the bones located in your foot / ankle?
Tarsals, metatarsals, phalanges
What are the 4 bones in your leg?
Femur
Patella
Tibia
Fibula
What are the 3 bones in your arm?
Humerus
Radius
Ulna
What is the real name for your shoulder blade?
Scapula
What is the real name for your collar bone?
Clavicles
What is the real name for your skull?
Cranium
What are the bones in your torso?
Sternum
Rib cage
Clavicle
Scapula
What is a long bone?
A bone that is longer than it is wide. They are vital to generate movement, strength and speed. They enable the body to move.
What are short bones?
Short bones are the same size in length, width and thickness. They act as shock absorbers, weight barers and spread loads
What are flat bones?
Bones that protect organs or offer good surface for muscles to attach onto. They protect your organs in contact sports.
What are the 4 types of joints?
Condyloid joint
Ball and socket
Hinge
Pivot
What is flexion?
bending movement that decreases the angle between body parts
What is extension?
straightening movement that increases the angle between body parts
What is dorsi flexion?
bending or flexing the toes up, closer to the shin
What is planta flexion?
extending or pointing the toes down, away from the shin
What are irregular bones?
These bones have odd shapes and vary in function
What is abduction?
movement that pulls away from the midline of the body
What is adduction?
movement that pulls towards the midline of the body
What is rotation?
movement around a single axis or pivot point
What is circumduction?
moving in a circular or conical shape
What is a tendon?
Tendons are non elastic fibers that attach muscle to bone and help to move them. Tendons let you apply power and movement. They also grow in strength the more you use them.
