Question 1

The ability of the sarcolemma of muscle cells to conduct an impulse is an example of

Accepted Answer

A)  contractility. 
B)  excitability. 
C)  extensibility. 
D)  elasticity. 
A)  contractility. 
B)  excitability. 
C)  extensibility. 
D)  elasticity.

Question 2

The synaptic cleft is the space between the terminal bouton and the sarcolemma of the muscle fiber.

Accepted Answer

A) True 
 B)False

Question 3

During contraction, the ________ shortens, and the ________ disappears completely.

Accepted Answer

The answer of During contraction, the ________ shortens, and the...

Question 4

During contraction, there is no change in the length of the ________ region of the sarcomere.

Accepted Answer

The answer of During contraction, there is no change in...

Question 5

Of the surrounding connective tissues of the muscle, the endomysium is the most superficial.

Accepted Answer

A) True 
 B)False

Question 6

Which of these correctly matches the property of muscle tissue with its definition?

Accepted Answer

A)  Contractility - the ability to recoil after stretching 
B)  Excitability - the ability to shorten with contraction 
C)  Extensibility - the ability to be stretched 
D)  Elasticity - the ability to conduct an impulse 
A)  Contractility - the ability to recoil after stretching 
B)  Excitability - the ability to shorten with contraction 
C)  Extensibility - the ability to be stretched 
D)  Elasticity - the ability to conduct an impulse

Question 7

Typically, each skeletal muscle is supplied by one ________ and one ________.

Accepted Answer

The answer of Typically, each skeletal muscle is supplied by...

Question 8

A muscle fascicle is

Accepted Answer

A)  a bundle of cells. 
B)  a single muscle cell. 
C)  a bundle of myofilaments. 
D)  a tendon. 
A)  a bundle of cells. 
B)  a single muscle cell. 
C)  a bundle of myofilaments. 
D)  a tendon.

Question 9

Use the diagram above to answer the following questions.
-Identify the letter that indicates the I band.

Accepted Answer

A)  A 
B)  B 
C)  C 
D)  D 
E)  E 
A)  A 
B)  B 
C)  C 
D)  D 
E)  E

Question 10

This type of muscle contains intercalated discs.

Accepted Answer

A)  skeletal muscle 
B)  smooth muscle 
C)  cardiac muscle 
A)  skeletal muscle 
B)  smooth muscle 
C)  cardiac muscle

Question 11

Acetylcholine

Accepted Answer

A)  binds to the myosin head, enabling it to form cross-bridges with actin. 
B)  binds to the sarcolemma and initiates an impulse in the muscle fiber. 
C)  breaks down the neurotransmitter that activates muscle fibers. 
D)  is released from the sarcoplasmic reticulum and binds to actin. 
A)  binds to the myosin head, enabling it to form cross-bridges with actin. 
B)  binds to the sarcolemma and initiates an impulse in the muscle fiber. 
C)  breaks down the neurotransmitter that activates muscle fibers. 
D)  is released from the sarcoplasmic reticulum and binds to actin.

Question 12

After a muscle fiber has contracted, the calcium

Accepted Answer

A)  is destroyed. 
B)  is chemically bound to the myofilaments. 
C)  is secreted by the Golgi apparatus. 
D)  is actively transported into the sarcoplasmic reticulum. 
A)  is destroyed. 
B)  is chemically bound to the myofilaments. 
C)  is secreted by the Golgi apparatus. 
D)  is actively transported into the sarcoplasmic reticulum.

Question 13

Visceral muscle refers to

Accepted Answer

A)  skeletal muscle and cardiac muscle. 
B)  cardiac muscle and smooth muscle. 
C)  skeletal muscle and smooth muscle. 
D)  smooth muscle only. 
A)  skeletal muscle and cardiac muscle. 
B)  cardiac muscle and smooth muscle. 
C)  skeletal muscle and smooth muscle. 
D)  smooth muscle only.

Question 14

Fascicles are bundles of muscle fibers wrapped together within perimysium.

Accepted Answer

A) True 
 B)False

Question 15

Use the diagram above to answer the following questions.
-This letter indicates an individual fascicle.

Accepted Answer

A)  A 
B)  B 
C)  C 
D)  D 
E)  E 
A)  A 
B)  B 
C)  C 
D)  D 
E)  E

Question 16

Within a fascicle, every muscle fiber is surrounded by the ________.

Accepted Answer

The answer of Within a fascicle, every muscle fiber is...

Question 17

Much of the natural elasticity of skeletal muscle tissue is provided by

Accepted Answer

A)  actin. 
B)  myosin. 
C)  tendons. 
D)  connective tissue sheaths. 
A)  actin. 
B)  myosin. 
C)  tendons. 
D)  connective tissue sheaths.

Question 18

In striated muscle, the I band is where

Accepted Answer

A)  only thick filaments occur. 
B)  thin filaments occur. 
C)  H zones occur. 
D)  thick and thin filaments occur. 
A)  only thick filaments occur. 
B)  thin filaments occur. 
C)  H zones occur. 
D)  thick and thin filaments occur.

Question 19

All of the following are true regarding motor units except

Accepted Answer

A)  Muscles in the fingers have a small number of muscle fibers per motor unit. 
B)  If needed, additional motor units can be recruited to accomplish a movement. 
C)  A muscle can produce more force if more motor units are recruited. 
D)  A single motor unit only innervates muscle fibers in a small area of a muscle. 
A)  Muscles in the fingers have a small number of muscle fibers per motor unit. 
B)  If needed, additional motor units can be recruited to accomplish a movement. 
C)  A muscle can produce more force if more motor units are recruited. 
D)  A single motor unit only innervates muscle fibers in a small area of a muscle.

Question 20

The repeating segments seen in a skeletal muscle fiber are the T tubules.

Accepted Answer

A) True 
 B)False

Exam 10: Skeletal Muscle Tissue

The ability of the sarcolemma of muscle cells to conduct an impulse is an example of

The synaptic cleft is the space between the terminal bouton and the sarcolemma of the muscle fiber.

During contraction, the ________ shortens, and the ________ disappears completely.

During contraction, there is no change in the length of the ________ region of the sarcomere.

Of the surrounding connective tissues of the muscle, the endomysium is the most superficial.

Which of these correctly matches the property of muscle tissue with its definition?

Typically, each skeletal muscle is supplied by one ________ and one ________.

A muscle fascicle is

Use the diagram above to answer the following questions. -Identify the letter that indicates the I band.

This type of muscle contains intercalated discs.

Acetylcholine

After a muscle fiber has contracted, the calcium

Visceral muscle refers to

Fascicles are bundles of muscle fibers wrapped together within perimysium.

Use the diagram above to answer the following questions. -This letter indicates an individual fascicle.

Within a fascicle, every muscle fiber is surrounded by the ________.

Much of the natural elasticity of skeletal muscle tissue is provided by

In striated muscle, the I band is where

All of the following are true regarding motor units except

The repeating segments seen in a skeletal muscle fiber are the T tubules.

The Human Body: an Orientation

Cells: the Living Units

Basic Embryology

Tissues

The Integumentary System

Bones and Skeletal Tissues

Bones, Part 1: the Axial Skeleton

Bones, Part 2: the Appendicular Skeleton

Joints

Muscles of the Body

Fundamentals of the Nervous System and Nervous Tissue

The Central Nervous System

The Peripheral Nervous System

The Autonomic Nervous System and Visceral Sensory Neurons

The Special Senses

The Endocrine System

Blood

The Heart

Blood Vessels

The Lymphatic and Immune Systems

The Respiratory System

The Digestive System

The Urinary System

The Reproductive System

Filters

During contraction, the shortens, and the disappears completely.

Typically, each skeletal muscle is supplied by one and one .