Muscle And Skeletal Physiology at University Of Santo Tomas | Flashcards & Summaries

Lernmaterialien für Muscle and skeletal physiology an der University of Santo Tomas

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TESTE DEIN WISSEN

In excitation-contraction coupling, the following occurs except

a) stimulated by a nerve ending 

b) propagate action potential in sarcoplasmic reticulum

c) rise in intracellular calcium

d) depolarization spreads in the T-tubules

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B

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Most levers in the body are ________ class levers

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3rd

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specialized muscle fiber that fatigues quickly

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fast muscle fibers

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Type of muscle contraction with sustained contraction due to repetitive signals

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Tetanus

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An electrical stimulation along the nerve cell results in the following except

a) release of Acetylcholine

b) influx of Na in the sarcolemma

c) closing of Ca+ gated channels

d) none of the above

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c) closing of Ca+ gated channel

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Cross bridges occur when

a) calcium bind to troponin

b) tropomyosin moves to expose binding site

c) the myosin head is in cocked position

d) the myosin head bind to actin binding site

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D

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True or False: A maximum amount of stimulus is needed to achieve muscular response

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False

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Sliding filament theory involves the following except

a) shortening of the sarcomere

b) cross bridge occurs

c) ADP molecule binds in myosin

d) calcium ions are released from the sarcoplasmic reticulum

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C

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How many actin myofilament surround myosin filaments

a) 4

b) 6

c) 8

d) 10

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B

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The following change length during a sliding filament theory except

a) myofilament

b) H-zone

c) z disk

d) I bands

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A

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A process by which acetylcholine is released in the synaptic cleft

a) exocytosis

b) endocytosis

c) mitosis

d) meiosis

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A

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Functions of the skeletal system except

a) protection

b) secretion of calcium

c) production of erythrocytes

d) none of the above 

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D

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Q:

In excitation-contraction coupling, the following occurs except

a) stimulated by a nerve ending 

b) propagate action potential in sarcoplasmic reticulum

c) rise in intracellular calcium

d) depolarization spreads in the T-tubules

A:

B

Q:

Most levers in the body are ________ class levers

A:

3rd

Q:

specialized muscle fiber that fatigues quickly

A:

fast muscle fibers

Q:

Type of muscle contraction with sustained contraction due to repetitive signals

A:

Tetanus

Q:

An electrical stimulation along the nerve cell results in the following except

a) release of Acetylcholine

b) influx of Na in the sarcolemma

c) closing of Ca+ gated channels

d) none of the above

A:

c) closing of Ca+ gated channel

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Q:

Cross bridges occur when

a) calcium bind to troponin

b) tropomyosin moves to expose binding site

c) the myosin head is in cocked position

d) the myosin head bind to actin binding site

A:

D

Q:

True or False: A maximum amount of stimulus is needed to achieve muscular response

A:

False

Q:

Sliding filament theory involves the following except

a) shortening of the sarcomere

b) cross bridge occurs

c) ADP molecule binds in myosin

d) calcium ions are released from the sarcoplasmic reticulum

A:

C

Q:

How many actin myofilament surround myosin filaments

a) 4

b) 6

c) 8

d) 10

A:

B

Q:

The following change length during a sliding filament theory except

a) myofilament

b) H-zone

c) z disk

d) I bands

A:

A

Q:

A process by which acetylcholine is released in the synaptic cleft

a) exocytosis

b) endocytosis

c) mitosis

d) meiosis

A:

A

Q:

Functions of the skeletal system except

a) protection

b) secretion of calcium

c) production of erythrocytes

d) none of the above 

A:

D

Muscle and skeletal physiology

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