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LEC CPROT > muscular system > Flashcards

muscular system Flashcards

1
Q

produced by an intrinsic system of musculature

A

movement

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2
Q

facilitated by nerve impulses at nerve endings

A

muscle contraction

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3
Q

critical to important activities like fedding and walking

A

coordinated movement of muscles

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4
Q

are made up of contractile units called myosin filaments

A

muscles

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5
Q

are striated fibers that makes up the muscles

A

myosin filaments

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6
Q

light bands

A

isotropid

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7
Q

dark bands in the muscle

A

anisotropid

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8
Q

presence of numerous nerve endings from a single axon

A

multiterminal innervation

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9
Q

myofibrils situated in a matrix of multinucleated cytoplasm

A

fibers

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10
Q

have lateral projections which interlink with actin filaments

A

myosin filaments

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11
Q

converts chemical energy into mechanical work
occurs in antagonistic pairs (FLEXOR AND EXTENSOR)

A

Muscles

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12
Q

different types of insect muscles

A

typical (bee larva)
microfibrillar (legs of orthoptera)
lamellar or tubular (direct flight muscles)
fibrillar

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13
Q

type of muscle that has slightly differentiated fibrils

A

typical

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14
Q

type of muscle that have closely packed fibrils that are interspersed with columns of mitochondria

A

mmicrofibrillar

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15
Q

direct flight muscles
nuclei found only along the central portion forming a column

A

lamellar or tubular

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16
Q

of large diameter fibril surrounded by sarcolemma
Found in indirect flight muscles

A

fibrillar

17
Q

categories of insect muscles

A

visceral muscles
segmental muscles
appendage muscles

18
Q

occur in circular, longitudinal or oblique bands around the digestive tract
produces PERISTALTIC MOVEMENT

A

Visceral muscles

19
Q

series of bands that connect the body segments
connects the tergites and sternites

A

segmental muscles

20
Q

muscle attached to or within the appendages

A

appendage muscles

21
Q

basic mode of locomotion in insects on land
TRIPOD MANNER for adult insects

A

walking

22
Q

basic mode of locomotion for worm shaped immatures
longitudinal and dorsoventral muscles oppose each other

A

crawling

23
Q

abdominal segments that assist in anchoring the abdomen

A

fleshy prolegs

24
Q

only adults can accomplish this (except mayyflies)

A

flying

25
Q

flying muscles attached to the tergites and sternites

A

indirect flight muscles

26
Q

flying muscles attached to wing bases

A

direct flight muscles

27
Q

locomotion in more primitive insects

begins with the contraction of dorsoventral muscles - depression of the tergum (forcing wing base down and wing up; with thoracic pleurite as fulcrum - contraction of basalar muscles

A

up and down beat cycle

LEC CPROT (11 decks)

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