Question 1

As skeletal muscles enlarge in a weight lifter, all of the following occur except

Accepted Answer

A)  muscle cells divide mitotically. 
B)  muscle cells grow larger. 
C)  myofilaments become more abundant in the muscle cells. 
D)  myofibrils become more abundant in the muscle cells. 
A)  muscle cells divide mitotically. 
B)  muscle cells grow larger. 
C)  myofilaments become more abundant in the muscle cells. 
D)  myofibrils become more abundant in the muscle cells. A

Question 2

The difference in color between skeletal muscle fibers is caused by the abundance of ________.

Accepted Answer

myoglobin

Question 3

This type of muscle is found in large blood vessels leading to and from the heart.

Accepted Answer

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

Question 4

In skeletal muscle fibers, which band or zone contains both thick and thin myofilaments?

Accepted Answer

A)  A 
B)  H 
C)  I 
D)  Z 
A)  A 
B)  H 
C)  I 
D)  Z

Question 5

Age-related loss of muscle mass may be influenced by all of these except

Accepted Answer

A)  an increase in the relative proportion of connective tissue to number of muscle fibers. 
B)  decrease in the level of testosterone. 
C)  degeneration of muscle fibers because of accumulation of calcium in the sarcoplasm. 
D)  exhaustion of the supply of muscle satellite cells. 
A)  an increase in the relative proportion of connective tissue to number of muscle fibers. 
B)  decrease in the level of testosterone. 
C)  degeneration of muscle fibers because of accumulation of calcium in the sarcoplasm. 
D)  exhaustion of the supply of muscle satellite cells.

Question 6

The only muscle cells that branch are ________ muscle cells.

Accepted Answer

A)  skeletal 
B)  smooth 
C)  cardiac 
D)  red 
A)  skeletal 
B)  smooth 
C)  cardiac 
D)  red

Question 7

When the distance between two adjacent Z disks grows shorter, the muscle fiber is experiencing

Accepted Answer

A)  concentric contraction. 
B)  eccentric contraction. 
C)  isometric contraction. 
D)  relaxation. 
A)  concentric contraction. 
B)  eccentric contraction. 
C)  isometric contraction. 
D)  relaxation.

Question 8

Sarcoplasmic reticulum lies

Accepted Answer

A)  between fibers but in myofilaments. 
B)  between myofibrils but in fibers. 
C)  between fascicles but outside fibers. 
D)  between muscles but in myofilaments. 
A)  between fibers but in myofilaments. 
B)  between myofibrils but in fibers. 
C)  between fascicles but outside fibers. 
D)  between muscles but in myofilaments.

Question 9

Use the diagram above to answer the following questions.
-Identify the letter that indicates the thin (actin) filament.

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 attaches to bone, but may also attach to skin, cartilage, fascia or a raphe.

Accepted Answer

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

Question 11

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

Accepted Answer

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

Question 12

This type of muscle composes the largest share of muscle weight in the human body.

Accepted Answer

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

Question 13

Muscles in the appendages typically have their origins ________ to the insertion.

Accepted Answer

The answer of Muscles in the appendages typically have their...

Question 14

The ________ filament is composed of myosin.

Accepted Answer

The answer of The ________ filament is composed of myosin....

Question 15

Contractions of these muscles are under voluntary control.

Accepted Answer

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

Question 16

List the arrangement of muscle fibers in a muscle and their connective tissue layers.

Accepted Answer

Each muscle fiber is covered by the endo

Question 17

Of the various types of skeletal muscle fibers, the type with the most mitochondria is

Accepted Answer

A)  slow oxidative fibers. 
B)  fast glycolytic fibers. 
C)  fast oxidative fibers. 
D)  slow glycolytic fibers. 
A)  slow oxidative fibers. 
B)  fast glycolytic fibers. 
C)  fast oxidative fibers. 
D)  slow glycolytic fibers.

Question 18

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

Accepted Answer

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

Question 19

Of the various types of skeletal muscle fibers, the type containing the most glycogen granules is

Accepted Answer

A)  slow oxidative fibers. 
B)  fast glycolytic fibers. 
C)  fast oxidative fibers. 
D)  slow glycolytic fibers. 
A)  slow oxidative fibers. 
B)  fast glycolytic fibers. 
C)  fast oxidative fibers. 
D)  slow glycolytic fibers.

Question 20

All of following are true regarding blood and nerve supply to muscles except

Accepted Answer

A)  Vessels and nerves enter a muscle near the middle of its length. 
B)  Generally, a muscle is supplied by one nerve and one artery. 
C)  Nerves and vessels branch and travel within the connective tissue in the muscle. 
D)  Muscles have low need for nutrients and oxygen, so they have few blood vessels. 
A)  Vessels and nerves enter a muscle near the middle of its length. 
B)  Generally, a muscle is supplied by one nerve and one artery. 
C)  Nerves and vessels branch and travel within the connective tissue in the muscle. 
D)  Muscles have low need for nutrients and oxygen, so they have few blood vessels.

Exam 10: Skeletal Muscle Tissue

As skeletal muscles enlarge in a weight lifter, all of the following occur except

The difference in color between skeletal muscle fibers is caused by the abundance of ________.

This type of muscle is found in large blood vessels leading to and from the heart.

In skeletal muscle fibers, which band or zone contains both thick and thin myofilaments?

Age-related loss of muscle mass may be influenced by all of these except

The only muscle cells that branch are ________ muscle cells.

When the distance between two adjacent Z disks grows shorter, the muscle fiber is experiencing

Sarcoplasmic reticulum lies

Use the diagram above to answer the following questions. -Identify the letter that indicates the thin (actin) filament.

This type of muscle attaches to bone, but may also attach to skin, cartilage, fascia or a raphe.

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

This type of muscle composes the largest share of muscle weight in the human body.

Muscles in the appendages typically have their origins ________ to the insertion.

The ________ filament is composed of myosin.

Contractions of these muscles are under voluntary control.

List the arrangement of muscle fibers in a muscle and their connective tissue layers.

Of the various types of skeletal muscle fibers, the type with the most mitochondria is

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

Of the various types of skeletal muscle fibers, the type containing the most glycogen granules is

All of following are true regarding blood and nerve supply to muscles except

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

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