Structure and Function of Skeletal System

Question 1

Axial Skeleton

Answer 1

Main source of support
Central part of the skeleton
Includes:
Cranium, Vertebral Column, Rib cage

Question 2

Appendicular Skeleton

Answer 2

Consists of remaining bones (not in Axial)

Question 3

Components of a Synovial Joint

Answer 3

Joint Capsule lined with synovial membrane
Lubricant(synovial fluid) is produced by membrane
Most common type of joint = wide range of movement

Question 4

Components of a Hinge Joint
(examples)

Answer 4

Allows movement of only one plane (uniaxial)
Elbow, Knee

Question 5

Components of a Ball and Socket Joint
(examples)

Answer 5

Allows wide range of movement in all planes
Round head of one bone fits into cup-shaped depression of the other
Hip (deep), Shoulder(shallow)

Question 6

Extension Def

Answer 6

Increase of the angle around a joint

Question 7

Flexion Def

Answer 7

Decrease of angle around a joint

Question 8

6 Functions of the Skeleton

Answer 8

Support
Posture
Movement
Protection
Blood cell production
Storage of minerals

Question 9

Support Def

Answer 9

To keep the body upright/provides framework to support muscles

Question 10

Posture Def

Answer 10

Skeleton gives correct shape to the body

Question 11

Movement Def

Answer 11

Bones provide a surface for muscles/tendons to attach to & provides lever systems

Question 12

Protection Def

Answer 12

Parts of the skeleton protect internal organs, reducing injury and damage on impact
Ribs protect the heart and lungs, cranium protects the brain

Question 13

What is Adduction?

Answer 13

Movement towards the body

Question 14

What is Abduction?

Answer 14

Movement away from the body