Question 1

Using the mandible to close your mouth as you bite on food is an example of a _________ lever.

Accepted Answer

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

Question 2

The number of satellite cells in skeletal muscle steadily decreases with age.

Accepted Answer

A) True 
 B)False

Question 3

The type of muscle fibers that are striated,form Y-shaped branches,and have junctions called intercalated discs are

Accepted Answer

A)  skeletal.
B)  cardiac.
C)  smooth.
D)  voluntary.
E)  skeletal and voluntary.F) A) and D)
G) A) and B)

Question 4

______________ muscle fibers have large myoglobin stores,slow contraction velocity,and the highest resistance to fatigue.

Accepted Answer

The answer of ______________ muscle fibers have large myoglobin stores,slow...

Question 5

The _____________ is the connective tissue covering of a fascicle.

Accepted Answer

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

Question 6

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 7

Pennate muscles resemble a

Accepted Answer

A)  triangle.
B)  leaf.
C)  spindle.
D)  feather.
E)  strap.F) A) and E)
G) A) and D)

Question 8

The enzyme _____________ resides in the synaptic cleft and breaks down molecules of Ach.

Accepted Answer

acetylchol...

Question 9

When the muscles on the posterior side of the head pull on the skull and oppose the tendency of the head to tip anteriorly,one has an example of a _____ lever.

Accepted Answer

A)  first-class
B)  second-class
C)  third-classD) B) and C)
E) All of the above

Question 10

Which structures are reservoirs that store acetylcholine?

Accepted Answer

A)  Synaptic vesicles
B)  Synaptic clefts
C)  Terminal cisternae
D)  Lysosomes
E)  SarcomeresF) A) and D)
G) A) and C)

Question 11

The type of fibers specialized to continue contracting for extended periods of time,as would be required in running a marathon,for example,are _____ fibers.

Accepted Answer

A)  fast
B)  slow
C)  intermediate
D)  fast and intermediate
E)  slow and intermediateF) C) and E)
G) C) and D)

Question 12

In a sarcomere,which letter is associated with a region within the A band that is more lightly shaded because only thick filaments are present?

Accepted Answer

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

Question 13

A muscle whose name has "triceps" in it

Accepted Answer

A)  has two muscle heads or tendons of origin.
B)  has three muscle heads or tendons of origin.
C)  has four sets of two muscle heads or tendons of origin.
D)  has four muscle heads or tendons of origin.
E)  is part of a complex of three separate muscles that rotate at a joint.F) A) and C)
G) B) and E)

Question 14

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

Accepted Answer

A)  slow
B)  fast
C)  intermediateD) All of the above
E) B) and C)

Question 15

During muscle contraction,myosin heads attach to actin and thereby form connections called ______________.

Accepted Answer

The answer of During muscle contraction,myosin heads attach to actin...

Question 16

Which protein makes up the thick filaments?

Accepted Answer

A)  Myosin
B)  Actin
C)  Tropomyosin
D)  Troponin
E)  MyopathyF) None of the above
G) A) and D)

Question 17

Which are the reservoirs that store the calcium required for muscle contraction?

Accepted Answer

A)  Synaptic vesicles
B)  Synaptic clefts
C)  Terminal cisternae
D)  Peroxisomes
E)  MitochondriaF) A) and E)
G) C) and D)

Question 18

______________ are Z disc proteins that anchor and interconnect the thin filament ends at either end of a sarcomere.

Accepted Answer

The answer of ______________ are Z disc proteins that anchor...

Question 19

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

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

Question 20

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

Accepted Answer

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

Exam 10: Muscle Tissue and Organization

In a sarcomere,which letter is associated with a region within the A band that is more lightly shaded because only thick filaments are present?

Correct AnswerverifiedShow Answer

______________ muscle fibers have large myoglobin stores,slow contraction velocity,and the highest resistance to fatigue.

Correct AnswerverifiedShow Answer

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

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

The number of satellite cells in skeletal muscle steadily decreases with age.

Correct AnswerverifiedShow Answer

Pennate muscles resemble a

Correct AnswerverifiedShow Answer

The type of muscle fibers that are striated,form Y-shaped branches,and have junctions called intercalated discs are

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The type of fibers specialized to continue contracting for extended periods of time,as would be required in running a marathon,for example,are _____ fibers.

Correct AnswerverifiedShow Answer

During muscle contraction,myosin heads attach to actin and thereby form connections called ______________.

Correct AnswerverifiedShow Answer

Using the mandible to close your mouth as you bite on food is an example of a _________ lever.

Correct AnswerverifiedShow Answer

Which structures are reservoirs that store acetylcholine?

Correct AnswerverifiedShow Answer

When the muscles on the posterior side of the head pull on the skull and oppose the tendency of the head to tip anteriorly,one has an example of a _____ lever.

Correct AnswerverifiedShow Answer

The _____________ is the connective tissue covering of a fascicle.

Correct AnswerverifiedShow Answer

The enzyme _____________ resides in the synaptic cleft and breaks down molecules of Ach.

Correct Answerverifiedacetylchol...View AnswerShow Answer

Which are the reservoirs that store the calcium required for muscle contraction?

Correct AnswerverifiedShow Answer

______________ are Z disc proteins that anchor and interconnect the thin filament ends at either end of a sarcomere.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

A muscle whose name has "triceps" in it

Correct AnswerverifiedShow Answer

Which protein makes up the thick filaments?

Correct AnswerverifiedShow Answer

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acetylchol...
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