locomotion Flashcards

1
Q

what is locomotion?

A

the act of movement

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2
Q

what does the human skeleton involve?

A

bones, cartilage, and joints

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3
Q

what are bones?

A

hard and rigid tissue

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4
Q

what do bones do?

A

support and protect soft tissue, attachment site for muscles, and rbc & wbc production w/in marrow

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5
Q

what happens when a bone is formed?

A

a joint acts as a lever when attached muscle contracts

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6
Q

what is a cartilage?

A

fibrous and elastic tissue

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7
Q

what is cartilage as an embryo bone?

A

cartilage

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8
Q

what happens after birth for a cartilage?

A

the cartilage is gradually replaced by a bone

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9
Q

what does the cartilage provide?

A

cushioning and flexibility at joints

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10
Q

what are joints?

A

connection between bones

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11
Q

what do joints do?

A

they allow movement to be possible

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12
Q

what are the types of joints?

A

hinge joint, ball & socket joint, pivot joint, and immovable joint

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13
Q

what do hinge joints do?

A

back and forth (elbow & knee)

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14
Q

what do ball & socket joints do?

A

circular movement (shoulder & hip)

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15
Q

what do the pivot joints do?

A

1/2 circular movement (neck)

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16
Q

what do immovable joints do?

A

no movement (skull bones)

17
Q

what do muscle tissue of the human body include?

A

skeletal muscles, smooth muscles, and cardiac muscles