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AnP 1 > Muscles > Flashcards

Muscles Flashcards

1
Q

Outer connective tissue covering of muscle

A

Epimysium

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2
Q

Bundle of muscle cells

A

Fascicle

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3
Q

Contractile proteins in muscle tissue

A

Actin/Myosin

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4
Q

Specialized organelle that stores/releases calcium

A

Sarcoplasmic Reticulum

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5
Q

Covering around fascicle, contains vessels and nerves

A

Perimysium

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6
Q

Regulatory proteins of the muscle cell

A

Troponin/Tropomyosin

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7
Q

Individual muscle cell

A

Myocyte

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8
Q

Outer plasma membrane of myocyte

A

Sarcolemma

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9
Q

Wide sheet of dense regular connective tissue

A

Fascia

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10
Q

Areolar tissue covering for each muscle cell

A

Endomysium

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11
Q

Contractile unit of the muscle

A

Sarcomere

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12
Q

Connects muscle to bone

A

Tendon

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13
Q

Term used to describe the entire muscle

A

Belly

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14
Q

Specialized structure of membrane that goes through

A

T-tubule (transverse)

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15
Q

Cytoplasms of muscle cell; has glycogen and myoglobin

A

Sarcoplasm cell and assists in signaling

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16
Q

Main function of the muscular system

A

movement of bones/fluids
Maintaining posture/body position
stablize joints
head generation

17
Q

Responsiveness or ability to receive and respond to stimuli; plasma membranes changes electrical state (- to +)

A

Excitability

18
Q

Ability of muscle tissue to pull on its attachment points and shorten with force.

A

Contractility

19
Q

Ability to return to original length when resting, recoil due to presence of elastin.

A

Elasticity

20
Q

striated and involuntary

A

cardiac muscle

21
Q

non-striated and involuntary

A

smooth muscle

22
Q

striated and voluntary

A

skeletal muscle

23
Q

Repeated units of contractile and regular proteins that enable shortening and lengthening of the myocyte.

A

Sarcomere

24
Q

Arranged in a bundle with heads directed outward in a spiral array around the bundled tails. The central area (tail) is a bare zone with no heads. The thick/darker filament and the A band.

A

Myosin

25
Q

Two intertwined strands fibrous actin; globular actin with a binding site. Regulatory proteins associated with this filament. The thin/lighter filament and the I band.

A

Actin

26
Q

Each motor neuron and all the muscle fibers it innervates. Motor neuron sitmulates the myocyte by releasing a neurotransmitter.

A

Motor unit

AnP 1 (11 decks)

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