Question 1

Which is a correct listing of the hierarchy of a skeletal muscle's components,beginning with the smallest?
 A: Myofibrils
B: Muscle fiber
C: Fascicle
D: Skeletal muscle

Accepted Answer

A)  a,b,c,d
B)  a,c,b,d
C)  d,c,b,a
D)  c,b,a,d
E)  b,c,a,dF) All of the above
G) B) and C)

Question 2

The T-tubules and sarcoplasmic reticulum are unique to muscle fibers.

Accepted Answer

A) True 
 B)False

Question 3

Which is the neurotransmitter that causes the release of calcium ions and initiates the steps of skeletal muscle fiber contraction?

Accepted Answer

A)  Acetylcholinesterase
B)  Acetylcholine
C)  Serotonin
D)  NorepinephrineE) B) and C)
F) All of the above

Question 4

Which region of a somite differentiates into the skeletal muscles?

Accepted Answer

A)  Sclerotome
B)  Dermatome
C)  MyotomeD) A) and C)
E) A) and B)

Question 5

The resistance to fatigue of fast fibers is ______ when compared to that of slow or intermediate fibers.

Accepted Answer

A)  low
B)  high
C)  identicalD) A) and B)
E) A) and C)

Question 6

Though the myofibrils within a muscle fiber run the length of the cell,they are actually composed of groupings of ______________ (protein filaments).

Accepted Answer

The answer of Though the myofibrils within a muscle fiber...

Question 7

Skeletal muscles are the only locations in the body where muscle tissue is found.

Accepted Answer

A) True 
 B)False

Question 8

The neurons that stimulate muscle contraction are called _____ neurons.

Accepted Answer

A)  sensory
B)  contractile
C)  inhibitory
D)   somatic motor
E)  associationF) C) and D)
G) All of the above

Question 9

Slow fibers are specialized to continue contracting for extended periods of time without experiencing fatigue.

Accepted Answer

A) True 
 B)False

Question 10

In an isotonic contraction,the tension produced exceeds the resistance and muscle fibers will shorten.

Accepted Answer

A) True 
 B)False

Question 11

The multiple nuclei in skeletal muscle cells are the result of the

Accepted Answer

A)  fusion of myoblasts.
B)  cytokinesis of embryonic satellite cells.
C)  spontaneous development of nuclei in embryonic cells.
D)  stimulation of fibroblasts by hormones.
E)  action of testosterone on mesenchyme cell.F) None of the above
G) A) and E)

Question 12

In a sarcomere,which letter is associated with the light band that contains thin filaments only?

Accepted Answer

A)  I
B)  A
C)  M
D)  Z
E)  HF) B) and D)
G) None of the above

Question 13

In which body region would you expect to find a muscle whose name includes the word "pollicis"?

Accepted Answer

A)  Great toe
B)  Buttocks
C)  Thumb
D)  Neck
E)  WristF) B) and E)
G) C) and E)

Question 14

The vascular supply to slow muscle fibers is ______ the network of capillaries around fast muscle fibers.

Accepted Answer

A)  more extensive than
B)  less extensive than
C)  the same as that ofD) All of the above
E) B) and C)

Question 15

One of the names for the areolar connective tissue and adipose connective tissue that separates muscle from skin is ______________ fascia.

Accepted Answer

The answer of One of the names for the areolar...

Question 16

What is the letter associated with the dark bands in a sarcomere?

Accepted Answer

A)  I
B)  A
C)  Z
D)  M
E)  HF) B) and C)
G) D) and E)

Question 17

When the force is applied between the resistance and the fulcrum,the result is a _____ lever.

Accepted Answer

A)  first-class
B)  second-class
C)  third-classD) A) and C)
E) None of the above

Question 18

The top long distance runners probably have _______ proportion of slow muscle fibers in their leg muscles.

Accepted Answer

A)  a higher
B)  a lower
C)  the sameD) All of the above
E) A) and C)

Question 19

The most common type of pennate muscle configuration is

Accepted Answer

A)  unipennate.
B)  bipennate.
C)  multipennate.D) B) and C)
E) A) and C)

Question 20

In general,a skeletal muscle is composed of 
A: Connective tissue sheaths
B: Nerves
C: Arteries
D: Veins
E: Muscle fibers

Accepted Answer

A)  a,b,c,e
B)  a,b,d,e
C)  b,c,d,e
D)  a,b,c,d
E)  a,b,c,d,eF) C) and D)
G) A) and E)

Exam 10: Muscle Tissue and Organization

The resistance to fatigue of fast fibers is ______ when compared to that of slow or intermediate fibers.

Correct AnswerverifiedShow Answer

In general,a skeletal muscle is composed of A: Connective tissue sheaths B: Nerves C: Arteries D: Veins E: Muscle fibers

Correct AnswerverifiedShow Answer

When the force is applied between the resistance and the fulcrum,the result is a _____ lever.

Correct AnswerverifiedShow Answer

Which region of a somite differentiates into the skeletal muscles?

Correct AnswerverifiedShow Answer

Slow fibers are specialized to continue contracting for extended periods of time without experiencing fatigue.

Correct AnswerverifiedShow Answer

The vascular supply to slow muscle fibers is ______ the network of capillaries around fast muscle fibers.

Correct AnswerverifiedShow Answer

In which body region would you expect to find a muscle whose name includes the word "pollicis"?

Correct AnswerverifiedShow Answer

Which is the neurotransmitter that causes the release of calcium ions and initiates the steps of skeletal muscle fiber contraction?

Correct AnswerverifiedShow Answer

The top long distance runners probably have _______ proportion of slow muscle fibers in their leg muscles.

Correct AnswerverifiedShow Answer

Skeletal muscles are the only locations in the body where muscle tissue is found.

Correct AnswerverifiedShow Answer

In a sarcomere,which letter is associated with the light band that contains thin filaments only?

Correct AnswerverifiedShow Answer

Which is a correct listing of the hierarchy of a skeletal muscle's components,beginning with the smallest? A: Myofibrils B: Muscle fiber C: Fascicle D: Skeletal muscle

Correct AnswerverifiedShow Answer

One of the names for the areolar connective tissue and adipose connective tissue that separates muscle from skin is ______________ fascia.

Correct AnswerverifiedShow Answer

The neurons that stimulate muscle contraction are called _____ neurons.

Correct AnswerverifiedShow Answer

Though the myofibrils within a muscle fiber run the length of the cell,they are actually composed of groupings of ______________ (protein filaments).

Correct AnswerverifiedShow Answer

The T-tubules and sarcoplasmic reticulum are unique to muscle fibers.

Correct AnswerverifiedShow Answer

In an isotonic contraction,the tension produced exceeds the resistance and muscle fibers will shorten.

Correct AnswerverifiedShow Answer

What is the letter associated with the dark bands in a sarcomere?

Correct AnswerverifiedShow Answer

The most common type of pennate muscle configuration is

Correct AnswerverifiedShow Answer

The multiple nuclei in skeletal muscle cells are the result of the

Correct AnswerverifiedShow Answer

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