1.4 Muscle and Nerve Tissue Flashcards

1
Q

Muscle cell membrane

A

Sarcolemma

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2
Q

Cytoplasm of muscle cells

A

Sacroplasm

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3
Q

Smooth ER of muscle cells

A

Sarcoplasmic reticulum

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4
Q

Specialized mitochodria of muscle cells

A

Sarcosome

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5
Q

Functional unit of muscle fibers

A

Sarcomere

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6
Q

Type of muscle with cylindrical and multinucleated cells, with oval nuclei at the periphery of cell

A

Skeletal muscle

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7
Q

Dark areas in the center of sarcomeres; anisotropic; consists of thick filament

A

A band

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8
Q

Light areas on either side of the Z disc

A

Isotropic

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9
Q

Part the skeletal muscle fiber: Pale area; center of A band

A

H band

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10
Q

Part the skeletal muscle fiber: Center of adjacent sarcomere; bisects each I band in which the thin filaments are attached to

A

Z line/disk

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11
Q

Contains binding site for myosin; makes up thin filaments

A

Actin

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12
Q

Morphological changes in sarcomere during muscle contraction

A

I band is narrower
H band is extinguished
Z discs move closer together
A band is unaltered

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13
Q

Receptor of proprioception

A

Neuromuscular spindle

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14
Q

Responsible for the packaging of neurotransmitter substances

A

Golgi complex

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15
Q

Unique in preneuronal multiplying cells

A

Centriole

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16
Q

Found only in the soma; with multiple parallel arrays of smooth cisternae

A

Golgi complex

17
Q

Most abundant in axon terminal

A

Mitochondria

18
Q

Protein used in anterograde transmission

19
Q

Protein used in retrograde transmission

20
Q

Serves as a high-resustance low -capacitance insulator

A

Mylein sheath

21
Q

Responsible for myelination in the periphery

A

Schwann cells

22
Q

Responsible for myelination in the CNS

A

Oligodendrocyts

23
Q

Sensory receptor for touch, heat, and cold sensation; no connective tissue; high amount in the body

A

Free / non-encapsulated

24
Q

Sensory receptor for pressure, vibration; concentric layer of lamellae

A

Encapsulated sensory receptor

25
Specific sensory receptor for touch located in dermal papillae
Meissner's corpuscle
26
Specific sensory receptor for proprioception
Neuromuscular spondle
27
Deter pressure changes
Baroreceptors
28
Largest and most numerous neuroglial cells; star-shaped
Astrocytes
29
Many and short branching astrocytes found in gray matter
Protoplasmic astrocytes
30
Few, long and unbranched astrocytes in white matter
Fibrous astrocytes
31
Small cell with short processes; phagocytic in nature involved in inflammation and repair in the adult CNS; produce and release neutral proteases and oxidative radicalsPhagocytose injured cells
Microglia
32
Part of skeletal muscle fiber: isotropic, consists of thin filament, seen as light areas on either side of the Z line
I band
33
Muscle protein making up the thick filaments; made up of 2 heavy and 2 light chains
Myosin
34
Muscle protein which facilitates the actin-myosin interaction during muscle contraction
Troponin
35
Muscle protein which covers the myosin binding site when muscle tissue is at rest
Tropomyosin