Skeletal System

Question 1

Name the 7 functions of the skeletal system

Answer 1

movement, protection, structure/shape, storage for minerals, production of RBC, support, point of attatchment

Question 2

Name the two divisions of the skeletal system, and examples

Answer 2

1) axial- skull, ribcage, spine

2) appendicular-bones of the upper and lower limbs

Question 3

what are the three types of joints

Answer 3

-fused, cartilaginous, synovial

Question 4

explain and give an example of the fused joint

Answer 4

immobile- e.g.cranium

Question 5

explain and give an example of the cartilaginous joint

Answer 5

slightly mobile- e.g. vertebrae (maintain posture), ribs

Question 6

explain and give an example of the synovial joint

Answer 6

allow free movement in varying directions, limited only by muscles, ligaments and tendons

Question 7

What types of movement can synovial joints do?

Answer 7

flexion/extension, abduction, adduction, rotation

Question 8

Name the six synovial joints and an example for each

Answer 8

1) hinge (elbow, knee)
2) saddle (thumb)
3) ball and socket (shoulder, hip)
4) pivot (first vertebrae)
5) condyloid/ellipsoid (finger, toe)
6) gliding (ankle/wrist)

Question 9

explain a ligament

Answer 9

bone to bone, no blood supply, therefore nutrient and waste transport by diffusion, flexible not stretchy

Question 10

explain a tendon

Answer 10

muscle to bone, no blood supply, therefore nutrient and waste transport by diffusion, flexible not stretchy, made of fibre connective tissue

Question 11

Does articular cartilage have a blood supply?

Answer 11

NO

Question 12

Explain a synovial membrane

Answer 12

part of the capsule, has blood capillaries and connective tissues

Question 13

What does the synovial membrane have that tendons and ligaments don’t, and what does it mean?

Answer 13

has blood supply, therefore if injured, small time to heal compared to ligament or tendon