skeletal system

Question 1

what are the 5 functions of the skeleton

Answer 1

1. protection
2. movement
3. muscle attachment
4. red blood cell production
5. stores minerals

Question 2

what are the 3 types of bones and give examples of each and what they help do

Answer 2

long bones - femur, humerus and ulna - they allow gross movements
flat bones - cranium, ribcage - they protect our vital organs
short bones - tarsals and carpals - they allow finer and more controlled movements

Question 3

what are the examples of a hinge joint and what movements do they allow

Answer 3

ankle, elbow and knee - they allow flexion and extensions

Question 4

what are the examples of ball and socket joints and what movements do they allow

Answer 4

hip and shoulder - they allow flexion and extension, adduction and abduction, circumduction and rotation

Question 5

what the 6 features of a synovial joint and what are their functions

Answer 5

1. membrane - contains and releases synovial fluid
2. synovial fluid - lubricates and reduces friction to the joint
3. cartilage - acts as a shock absorber
4. capsule - surrounds the joint and so protects it
5. ligament - connects bone to bone
6. bursae - provides cushioning

Question 6

what is adduction

Answer 6

movement towards the midline

Question 7

what is abduction

Answer 7

movement away from the midline

Question 8

what is flexion

Answer 8

bending (angle decreases)

Question 9

what is extension

Answer 9

straightening (angle increases)

Question 10

what is plantar flexion

Answer 10

pointing toes

Question 11

whats is dorsiflexion

Answer 11

flexing toes