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Muscular Anatomy > Muscular Anatomy > Flashcards

Muscular Anatomy Flashcards

1
Q

What is the role of tropomyosin in muscle contraction ?

A

To prevent myosin from continuing to slide up the actin filament

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2
Q

What is the role of acetylcholine in calcium release ?

A

It stimulates cellular contraction by opening voltage-gated ion channels

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3
Q

What are the three types of muscles ?

A

skeletal, cardiac and smooth

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4
Q

What is the role of skeletal muscles ?

A

They help us move

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5
Q

What is the role of cardiac muscles ?

A

They make our heart beat

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6
Q

Where are smooth muscles located ?

A

They are located in hollow organs and blood vessels

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7
Q

Are skeletal muscles involuntary or voluntary ?

A

Voluntary

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8
Q

Are cardiac muscles involuntary or voluntary ?

A

Involuntary

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9
Q

Do smooth muscles work automatically ?

A

Yes

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10
Q

Skeletal muscles have…

A

thin myofilaments made of actin and regulatory proteins

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11
Q

What is the term that is associated with poneurosis ?

A

Tendon

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12
Q

What is hypertrophy ?

A

Increase in size of muscle

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13
Q

What is atrophy ?

A

Decrease in size of muscle

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14
Q

What is a skeletal muscle contraction ?

A

An increase in the tension or a decrease in the length of a skeletal muscle

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15
Q

What are tendons ?

A

Tendons are bundles of collagen fibers that attach skeletal muscles to bone

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16
Q

What are z-discs ?

A

They are structures that mark the end of a sarcomere in a muscle fiber. They are attached to actin filaments.

17
Q

What is the muscular system ?

A

It is the organ system that consists of all muscles in the body.

18
Q

What are the two systems that work with the muscular system to to carry out movements ?

A

Skeletal system and Nervous system

19
Q

Which type of muscle does not have visible striations ?

A

Smooth muscle

20
Q

Where do muscles attach ?

A

Tendon

Muscular Anatomy (1 decks)

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