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Cell Bio > ch 10-11 > Flashcards

ch 10-11 Flashcards

1
Q

cardiac muscles contain high levels of

A

glycogen (energy stores)

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2
Q

cardiac cell features found

A

striations, mononucleated, glycogen, intercatated disc

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3
Q

smooth muscle features

A

mononucleated
tapering cytoplasm
fusaform shape
NO striations

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4
Q

what happens to your muscles as you age

A

loss of muscle mass, cell component reduced
fat accumulates
glycolytic fibers atrophy
reduced nervous system efficiency

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5
Q

myopathies

A

disease of the muscles

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6
Q

muscular dystrohy

A

muscles degenerate and replaced by scar and adipose tissue
sex link hereditary gene

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7
Q

mysatheina gravis

A

autoimmune disease
destruction of ACh receptors

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8
Q

ptosis

A

drooping eye lid
trouble swallowing, limb weakness

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9
Q

endomysium

A

wraps muscle fiber

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10
Q

perimysium

A

wraps fascicle (bundle)

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11
Q

epimysium

A

wraps muscle

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12
Q

fascia

A

wraps muscle group

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13
Q

compartments are enclosed by

A

fasciae/ intermuscular septa

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14
Q

compartments of muscles consist of

A

functionally related muscles
nerves and blood vessels

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15
Q

compartments syndrome

A

pressure inside a compartment due to overuse or contusion

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16
Q

fasciotomy

A

incision in the fascia to relieve pressure

17
Q

fassicle

A

muscle fibers wrapped in perimsyium

18
Q

fusiform muscle

A

tendon belly tendon
typically- bigger in middle

19
Q

parallel muscle

A

no tapering off

20
Q

triangular muscle

A

triangle
tapers

21
Q

unipennate muscle

A

one sided/ half feather

22
Q

bipennate muslce

23
Q

multipennate

A

hella feathers

24
Q

circular

25
Q

muscle belly

A

area between origin and insertion

26
Q

muscle insertion

A

muscle attachment at more mobile end

27
Q

indirect attachment

A

tendon attaches muscle to bone
connects into periosteum and matrix

28
Q

aponeurosis

A

broad sheet of tendon

29
Q

direct/ fleshy attachment

A

close association with bone,
connected with collagen fibers

30
Q

muscle action

A

effect of muslce

31
Q

prime mover/ agonist

A

produces main fore of action

32
Q

synergist

A

aids prime mover, may stabilize

33
Q

antagonist

A

opposes prime mover
acts on opp side of joint
returns muscle to rest

34
Q

fixator

A

prevents bone movement

35
Q

intrinsic

A

origin and insertion contains within particular region

36
Q

extrinsic

A

acts upon a designated regions, but origin is elsewhere

37
Q

how muscles are named

A

size, shape, location, number of heads, orientation of the fibers, action

38
Q

aging muscular system symptoms

A

loss of lean body mass
fat/fibrous accumulation
fast glycolytic fiber atrophy

Cell Bio (9 decks)

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