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Muscles > Exam 3 theory > Flashcards

Exam 3 theory Flashcards

1
Q

A place where the fixed end attaches to a bone, cartilage, or connective tissue (typically stationary, where the muscle begins)

A

origin

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2
Q

site where the movable end attaches to another structure (typically movable, where muscles ends)

A

insertion

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3
Q

skeletal muscles are named by

A

muscle location
muscle shape
muscle size

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4
Q

muscle location

A

bone or body region

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5
Q

muscle shape

A

deltoid= triangle

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6
Q

muscle size

A

maximus= largest
brevis= short

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7
Q

the direction in which muscle fibers run in reference to an imaginary line, usually the midline of the body or the longitudinal axis of limbs.

A

Direction of Fibers

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8
Q

Number of Origins: example,

A

biceps brachii has two origins

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9
Q

when named by attachment sites e.g., points of origins and insertions, origins are always written first; example: sternocleidomastoid

A

Location of the Attachments

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10
Q

named for the movement they produce; example: adductor, flexor, extensor

A

Muscle Action

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11
Q

deals with the structures of the body that are visible to the naked eye

A

gross anatomy

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12
Q

layer of dense irregular connective tissue(does not show specific pattern)

A

epimysium

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13
Q

Each ____ has ___ concentric layers or wrapping of connective tissue.

A

skeletal muscle, 3

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14
Q

divides the muscles into internal compartments

A

perimysium

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15
Q

___surrounds each skeletal muscle

A

Endomysium

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16
Q

what makes up a muscle and attach muscles to bone, cartilage, and skin or another muscle.

A

epimysium
perimysium
endomysium

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17
Q

tendons that form thick, flattened fiber

A

aponeuroses

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18
Q

fibrous connective tissue that attaches muscle to bone

A

tendons

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19
Q

Formation of structure skeletal muscle fiber are

A

myoblast
muscle cell
skeletal muscle cell
stiated

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20
Q

Myoblast

A

give rise to muscle cell

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21
Q

muscle cells are the

A

longest cell

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22
Q

skeletal muscle cells are

A

multnucliated
stiated

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23
Q

External appearance and muscle view

A

multinucliated
stiated

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24
Q

sarcolemma

A

muscle plasma membrane

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25
Q

sarcoplasm

A

muscle plasma or cytoplasm

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26
Q

made up of 2 terminal cisterna (1 T tubule)

A

Triad

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27
Q

a myoblast that remains in adult skeletal muscle tissue

A

myosatellite

28
Q

growth, prepare and heal muscle

A

myoblast

29
Q

___ conduct electrical impulses, called _____

A

T-tuble(Triad)
action potential

30
Q

made up of a hundreds to thousand of fine cylindrical fibers

A

Myofilbrils

31
Q

___ is responsible for skeletal muscle fiber contraction

A

myofibrils

32
Q

_____ are made of thin/thick protein filament called____

A

myofibrils
myofilaments

33
Q

_____ are thin and thick filament

A

myofilament

34
Q

what is the level of functional organization and skeletal muscle fibers

A

skeletal muscle>muscle fascicle>muscle fiber>myofibril>sacromere

35
Q

__where all the the dirty works are done

A

sacromere (basic contractile)

36
Q

unite of myocyte (muscle fiber)

A

thin filament
Thick filament

37
Q

Thin filament

A

actin

38
Q

thick filament

A

myosim

39
Q

how does sacromere work

A

through cross-bridge

40
Q

interaction between acting and myosim

A

cross-bridge

41
Q

____ interact with ____ to form ______ where we get _____

A

actin, myosim
cross-bridge
contraction

42
Q

to get full power of sacromere contraction they should have an optimum length of _____

A

actin

43
Q

Surrounding myofibrils is the _______

A

sarcoplasmic reciculum (SR)

44
Q

main function of the sarcoplasmic reticulum is

A

muscle contraction

45
Q

calcium is needed in ___

A

muscle contraction
neurotransmitter release
blood clotting

46
Q

___ is surrounded by epimysium and contains muscle fascicles

A

skeletal muscle

47
Q

____ is surrounded by the perimysium and contains muscle fibers

A

muscle fascicle

48
Q

___ is surrounded by endomysium and contain myofibrils

A

muscle fibers

49
Q

____ is surrounded by sarcoplasmic reticulum and consists of sarcomeres

A

myofibrils

50
Q

sacromere

A

contain thick and thin filament

51
Q

Muscle fibers develop through the fusion of embryonic cells are called ___

A

myoblast

52
Q
A

Triad

53
Q
A

Terminal cistema

54
Q
A

T-tubules

55
Q
A

Myofibrils

56
Q
A

Sarcoplasma

57
Q
A

Sarcoplasmic reticulum

58
Q
A

Sarcolemma

59
Q
A

Myofibrils

60
Q
A

Nuclei

61
Q
A

Thin filament

62
Q
A

Thick filament

63
Q
A

Myofibrils

64
Q
A

Thin filament

65
Q
A

Thick filament

Muscles (7 decks)

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