Structure and Function of Skeletal System Flashcards

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1
Q

Axial Skeleton

A

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

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2
Q

Appendicular Skeleton

A

Consists of remaining bones (not in Axial)

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3
Q

Components of a Synovial Joint

A

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

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4
Q

Components of a Hinge Joint
(examples)

A

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

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5
Q

Components of a Ball and Socket Joint
(examples)

A

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)

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6
Q

Extension Def

A

Increase of the angle around a joint

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7
Q

Flexion Def

A

Decrease of angle around a joint

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8
Q

6 Functions of the Skeleton

A

Support
Posture
Movement
Protection
Blood cell production
Storage of minerals

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9
Q

Support Def

A

To keep the body upright/provides framework to support muscles

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10
Q

Posture Def

A

Skeleton gives correct shape to the body

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11
Q

Movement Def

A

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

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12
Q

Protection Def

A

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

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13
Q

What is Adduction?

A

Movement towards the body

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14
Q

What is Abduction?

A

Movement away from the body

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