Question 1

A skeletal muscle fiber

Accepted Answer

A)  is a relatively small, short cell. 
B)  contains a single myofibril. 
C)  contains a single nuclei, like most cells. 
D)  is a cylindrical cell formed by the fusion of many embryonic cells. 
A)  is a relatively small, short cell. 
B)  contains a single myofibril. 
C)  contains a single nuclei, like most cells. 
D)  is a cylindrical cell formed by the fusion of many embryonic cells.

Question 2

This type of muscle includes the fast oxidative fibers.

Accepted Answer

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

Question 3

The area that contains no thin filaments is known as the

Accepted Answer

A)  H zone. 
B)  I band. 
C)  intercalated disc. 
D)  A band. 
A)  H zone. 
B)  I band. 
C)  intercalated disc. 
D)  A band.

Question 4

In muscular dystrophy, the protein dystrophin, which strengthens the sarcolemma by connecting the cytoskeleton with the extracellular matrix, is missing. What would be a consequence of these fibers lacking this important sarcolemma strengthening protein?

Accepted Answer

A)  The sarcolemma would be weak and tear, allowing extracellular substances, including calcium ions, into the cell and disrupting muscle function. 
B)  The sarcolemma would become thick and fibrous, impeding ion exchange across it. 
C)  The sarcolemma would function normally, as this protein isn't important to muscle function. 
D)  The sarcolemma would shrink, compressing the contents of the muscle fiber and disrupting muscle function. 
A)  The sarcolemma would be weak and tear, allowing extracellular substances, including calcium ions, into the cell and disrupting muscle function. 
B)  The sarcolemma would become thick and fibrous, impeding ion exchange across it. 
C)  The sarcolemma would function normally, as this protein isn't important to muscle function. 
D)  The sarcolemma would shrink, compressing the contents of the muscle fiber and disrupting muscle function.

Question 5

Which of the following correctly defines a triad of the sarcomere?

Accepted Answer

A)  a T tubule and two adjacent terminal cisterns 
B)  actin, myosin, and titin 
C)  an axon terminal, synaptic cleft, and sarcolemma 
D)  actin, troponin, and tropomyosin 
A)  a T tubule and two adjacent terminal cisterns 
B)  actin, myosin, and titin 
C)  an axon terminal, synaptic cleft, and sarcolemma 
D)  actin, troponin, and tropomyosin

Question 6

Muscle cells that produce ATP anaerobically via glycolysis are called ________.

Accepted Answer

The answer of Muscle cells that produce ATP anaerobically via...

Question 7

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

Accepted Answer

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

Question 8

With intense resistance training,

Accepted Answer

A)  fast glycolytic fibers can convert to fast oxidative fibers. 
B)  fast oxidative fibers can convert to fast glycolytic fibers. 
C)  slow oxidative fibers can convert to fast glycolytic fibers. 
D)  slow oxidative fibers can convert to fast oxidative fibers. 
A)  fast glycolytic fibers can convert to fast oxidative fibers. 
B)  fast oxidative fibers can convert to fast glycolytic fibers. 
C)  slow oxidative fibers can convert to fast glycolytic fibers. 
D)  slow oxidative fibers can convert to fast oxidative fibers.

Question 9

Which type of muscle fiber has caveolae but no T tubules?

Accepted Answer

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

Question 10

Myoglobin

Accepted Answer

A)  binds and stores oxygen for ATP production. 
B)  is found within the T tubules. 
C)  is released by the sarcoplasmic reticulum. 
D)  provides energy for contraction. 
A)  binds and stores oxygen for ATP production. 
B)  is found within the T tubules. 
C)  is released by the sarcoplasmic reticulum. 
D)  provides energy for contraction.

A skeletal muscle fiber

This type of muscle includes the fast oxidative fibers.

The area that contains no thin filaments is known as the

In muscular dystrophy, the protein dystrophin, which strengthens the sarcolemma by connecting the cytoskeleton with the extracellular matrix, is missing. What would be a consequence of these fibers lacking this important sarcolemma strengthening protein?

Which of the following correctly defines a triad of the sarcomere?

Muscle cells that produce ATP anaerobically via glycolysis are called ________.

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

With intense resistance training,

Which type of muscle fiber has caveolae but no T tubules?

Myoglobin

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

Exam 10: Skeletal Muscle Tissue

A skeletal muscle fiber

This type of muscle includes the fast oxidative fibers.

The area that contains no thin filaments is known as the

In muscular dystrophy, the protein dystrophin, which strengthens the sarcolemma by connecting the cytoskeleton with the extracellular matrix, is missing. What would be a consequence of these fibers lacking this important sarcolemma strengthening protein?

Which of the following correctly defines a triad of the sarcomere?

Muscle cells that produce ATP anaerobically via glycolysis are called ________.

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

With intense resistance training,

Which type of muscle fiber has caveolae but no T tubules?

Myoglobin

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