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ANSC 2360 - Livsk A&P > Exam 2 > Flashcards

Exam 2 Flashcards

1
Q

What are muscle functions

A

Movement, manipulation of external objects, mixing of bodily fluids, expulsion from organs, head production, sound production, air movement,

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2
Q

Muscle types

A

Smooth, skeletal, cardiac

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3
Q

What is skeletal muscle

A

Most abundant, composed of long multiplnucleated cells, voluntary movement

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4
Q

What is cardiac muscle

A

Found in heart, vigorous and rhythmic, involuntary movement, individual uncleared cells

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5
Q

What is smooth muscle

A

Slow involuntary movement, found in GI tract, circulatory system, eyes, respiratory tract, comprised of nucleated fusiform cells

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6
Q

What are fusiform cells

A

Wide in middle with tapered ends

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7
Q

What are muscle classifications

A

Striated, unstriated, voluntary, involuntary

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8
Q

What muscle(s) are striated

A

Skeletal and cardiac

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9
Q

What muscle(s) are unstriated

A

Smooth

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10
Q

What muscle(s) are voluntary

A

Skeletal

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11
Q

What muscle(s) are involuntary

A

Cardiac and smooth

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12
Q

Types of skeletal organization

A

Endomysium, perimysoum, epimysium

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13
Q

What is endomysium

A

Connective tissue between fibers

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14
Q

What is perimysium

A

Connective tissue that groups fibers

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15
Q

What is epimysium

A

Connective tissue around entire muscle

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16
Q

Types of narrow bands

A

Strap, fusiform, pennate

17
Q

Strap muscle are

A

Parallel to each other

18
Q

Types of muscle attachment

A

Fleshy and tendons

19
Q

What are fleshy attachments

A

Arise from bone, attached by short tendon

20
Q

Types of tendons

A

Cord and aponeuroses

21
Q

Core type attach

A

Pennate musc,e

22
Q

Aponeuroses attach

A

Flat muscle

23
Q

What are muscle actions

A

Contractions, relaxation, convert chemical energy to mechanical energy

24
Q

What is skeletal muscle composed of

A

Bundles or sheets of fascia

25
Q

Muscle fascia is composed of

A

Fibers

26
Q

Fibers are composed of

A

myofibrils

27
Q

Sarcomeres are made of

A

myofibrils

28
Q

Smallest repetitive subunits of contractile

A

Sarcomeres

29
Q

myofibrils

A

Specialized contractile organelles

30
Q

Sarcomere

A

Functional unit of muscle, smallest components, give striated appearance

ANSC 2360 - Livsk A&P (11 decks)

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