Question 1

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

Accepted Answer

A) True 
 B)False

Question 2

Which letter is associated with the light band and contains thin filaments only?

Accepted Answer

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

Question 3

-This sarcomere depicts relaxed muscle.The M line is noted by number

Accepted Answer

A)  1.
B)  2.
C)  3.
D)  4.
E)  5.F) B) and E)
G) A) and B)

Question 4

Second-class levers are the most common in the human body.

Accepted Answer

A) True 
 B)False

Question 5

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

Accepted Answer

A) True 
 B)False

Question 6

The majority of skeletal muscle fibers in the body are _____ fibers.

Accepted Answer

A)  slow
B)  fast
C)  intermediateD) A) and C)
E) None of the above

Question 7

-This sarcomere depicts relaxed muscle.Number 1 denotes the

Accepted Answer

A)  A band.
B)  H zone.
C)  Z disc.
D)  M line.
E)  I band.F) A) and B)
G) A) and C)

Question 8

The primary function of the abdominal muscles is not to flex the spine,but to hold the abdominal organs in place.

Accepted Answer

A) True 
 B)False

Question 9

A(n)_____________ is a muscle whose actions oppose those of the agonist.

Accepted Answer

The answer of A(n)_____________ is a muscle whose actions oppose...

Question 10

Which applies to synergist muscles?
A: Assist the agonist
B: Assist the antagonist
C: May stabilize the point of origin
D: May contribute to tension at the insertion site
E: Most useful at the end of a movement

Accepted Answer

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

Question 11

The tension produced by a muscle fiber is directly proportional to the number of sarcomeres it contains.

Accepted Answer

A) True 
 B)False

Question 12

The _____________ is the connective tissue covering of a fascicle.

Accepted Answer

The answer of The _____________ is the connective tissue covering...

Question 13

Which fibers dominate many of the back and calf muscles that contract almost continually to maintain posture?

Accepted Answer

A)  Slow
B)  Fast
C)  IntermediateD) A) and B)
E) A) and C)

Question 14

Which of the myofilaments of a muscle fiber has the active sites to which the heads of the thick filaments will bind?

Accepted Answer

A)  Actin
B)  Troponin
C)  Tropomyosin
D)  Myosin
E)  SarcoplasmF) B) and C)
G) B) and E) A

Question 15

The _____________ is the innermost connective tissue layer that surrounds each muscle fiber.

Accepted Answer

The answer of The _____________ is the innermost connective tissue...

Question 16

The type of lever with the fulcrum in the middle is a ________ lever.

Accepted Answer

A)  first-class
B)  second-class
C)  third-classD) A) and B)
E) A) and C) A

Question 17

A first-class lever has its fulcrum between the force and the resistance.

Accepted Answer

A) True 
 B)False

Question 18

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) A) and E)
G) C) and D)

Question 19

The neurons that stimulate muscle contraction are called _____ neurons.

Accepted Answer

A)  sensory
B)  contractile
C)  inhibitory
D)  motor
E)  associationF) D) and E)
G) A) and E)

Question 20

Which are considered specific characteristics of all muscle cells?
A: Contractility
B: Extensibility
C: Excitability
D: Elasticity
E: Originality

Accepted Answer

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

Exam 10: Muscle Tissue and Organization

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

Correct AnswerverifiedShow Answer

Which letter is associated with the light band and contains thin filaments only?

Correct AnswerverifiedShow Answer

-This sarcomere depicts relaxed muscle.The M line is noted by number

Correct AnswerverifiedShow Answer

Second-class levers are the most common in the human body.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The majority of skeletal muscle fibers in the body are _____ fibers.

Correct AnswerverifiedShow Answer

-This sarcomere depicts relaxed muscle.Number 1 denotes the

Correct AnswerverifiedShow Answer

The primary function of the abdominal muscles is not to flex the spine,but to hold the abdominal organs in place.

Correct AnswerverifiedShow Answer

A(n)_____________ is a muscle whose actions oppose those of the agonist.

Correct AnswerverifiedShow Answer

Which applies to synergist muscles? A: Assist the agonist B: Assist the antagonist C: May stabilize the point of origin D: May contribute to tension at the insertion site E: Most useful at the end of a movement

Correct AnswerverifiedShow Answer

The tension produced by a muscle fiber is directly proportional to the number of sarcomeres it contains.

Correct AnswerverifiedShow Answer

The _____________ is the connective tissue covering of a fascicle.

Correct AnswerverifiedShow Answer

Which fibers dominate many of the back and calf muscles that contract almost continually to maintain posture?

Correct AnswerverifiedShow Answer

Which of the myofilaments of a muscle fiber has the active sites to which the heads of the thick filaments will bind?

Correct AnswerverifiedA

The _____________ is the innermost connective tissue layer that surrounds each muscle fiber.

Correct AnswerverifiedShow Answer

The type of lever with the fulcrum in the middle is a ________ lever.

Correct AnswerverifiedA

A first-class lever has its fulcrum between the force and the resistance.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The neurons that stimulate muscle contraction are called _____ neurons.

Correct AnswerverifiedShow Answer

Which are considered specific characteristics of all muscle cells? A: Contractility B: Extensibility C: Excitability D: Elasticity E: Originality

Correct AnswerverifiedD

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D