Question 1

What type of muscle tissue causes peristalsis?

Accepted Answer

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

Question 2

The electrical properties of cells are the result of

Accepted Answer

A)  ion concentration differences across the plasma membrane. 
B)  receptor sites that are present on the plasma membrane. 
C)  phosphorylation reactions within the cytoplasm. 
D)  phospholipids in the cell membrane. 
E)  None of these choices is correct. 
A)  ion concentration differences across the plasma membrane. 
B)  receptor sites that are present on the plasma membrane. 
C)  phosphorylation reactions within the cytoplasm. 
D)  phospholipids in the cell membrane. 
E)  None of these choices is correct.

Question 3

Which type of muscle tissue is autorhythmic?

Accepted Answer

A)  skeletal muscle 
B)  smooth muscle 
C)  cardiac muscle 
D)  both skeletal and cardiac muscle 
E)  both cardiac and smooth muscle 
A)  skeletal muscle 
B)  smooth muscle 
C)  cardiac muscle 
D)  both skeletal and cardiac muscle 
E)  both cardiac and smooth muscle

Question 4

A sarcomere extends from

Accepted Answer

A)  one Z disk to an adjacent Z disk. 
B)  one T tubule to the next T tubule. 
C)  the middle of the I band to the middle of the A band. 
D)  the H zone to the I band. 
E)  the M line to the next M line. 
A)  one Z disk to an adjacent Z disk. 
B)  one T tubule to the next T tubule. 
C)  the middle of the I band to the middle of the A band. 
D)  the H zone to the I band. 
E)  the M line to the next M line.

Question 5

An eccentric contraction is described as

Accepted Answer

A)  action potential frequency is high enough that no relaxation of muscle fibers occurs. 
B)  a muscle produces constant tension during contraction. 
C)  a muscle produces an increasing tension during contraction. 
D)  a muscle produces increasing tension as it shortens. 
E)  a muscle produces tension, but the length of the muscle is increasing. 
A)  action potential frequency is high enough that no relaxation of muscle fibers occurs. 
B)  a muscle produces constant tension during contraction. 
C)  a muscle produces an increasing tension during contraction. 
D)  a muscle produces increasing tension as it shortens. 
E)  a muscle produces tension, but the length of the muscle is increasing.

Question 6

A waste product of anaerobic respiration in muscle cells is

Accepted Answer

A)  uric acid. 
B)  hydrochloric acid. 
C)  lactic acid. 
D)  carbonic acid. 
E)  pyruvic acid. 
A)  uric acid. 
B)  hydrochloric acid. 
C)  lactic acid. 
D)  carbonic acid. 
E)  pyruvic acid.

Question 7

Treppe

Accepted Answer

A)  can contribute to improved muscle efficiency. 
B)  may be due to an increase in the level of calcium ions around the myofibril. 
C)  is an example of a graded response. 
D)  is achieved during warm-up exercises. 
E)  All of these choices are correct. 
A)  can contribute to improved muscle efficiency. 
B)  may be due to an increase in the level of calcium ions around the myofibril. 
C)  is an example of a graded response. 
D)  is achieved during warm-up exercises. 
E)  All of these choices are correct.

Question 8

You are hired to work in a laboratory to measure the rate of human muscle contraction. Which of the following might decrease in quantity in muscle cells undergoing contractions?

Accepted Answer

A)  ATP 
B)  carbon dioxide 
C)  water 
D)  lactic acid 
E)  sodium 
A)  ATP 
B)  carbon dioxide 
C)  water 
D)  lactic acid 
E)  sodium

Question 9

Select the term that does not belong with the others.

Accepted Answer

A)  muscle atrophy 
B)  immobilization 
C)  decrease in number of myofibrils 
D)  loss of nerve stimulation 
E)  increased vascularity 
A)  muscle atrophy 
B)  immobilization 
C)  decrease in number of myofibrils 
D)  loss of nerve stimulation 
E)  increased vascularity

Question 10

Which type of muscle tissue possesses striations?

Accepted Answer

A)  skeletal muscle 
B)  smooth muscle 
C)  cardiac muscle 
D)  both skeletal and cardiac muscle 
E)  both cardiac and smooth muscle 
A)  skeletal muscle 
B)  smooth muscle 
C)  cardiac muscle 
D)  both skeletal and cardiac muscle 
E)  both cardiac and smooth muscle

Question 11

Incomplete tetanus

Accepted Answer

A)  is the time during which the tissue cannot respond again. 
B)  results in complete and incomplete tetanus. 
C)  is the condition in which the muscle fiber only partially relaxes between contractions. 
D)  is the condition in which stimuli occur so rapidly that there are no intervening relaxations. 
E)  is the constant tension produced by muscles for long periods of time. 
A)  is the time during which the tissue cannot respond again. 
B)  results in complete and incomplete tetanus. 
C)  is the condition in which the muscle fiber only partially relaxes between contractions. 
D)  is the condition in which stimuli occur so rapidly that there are no intervening relaxations. 
E)  is the constant tension produced by muscles for long periods of time.

Question 12

A stimulus either causes an action potential or it doesn't. This is called

Accepted Answer

A)  an all-or-none response. 
B)  a graded response. 
C)  a latent period response. 
D)  a relative refractory response. 
E)  an arbitrary response. 
A)  an all-or-none response. 
B)  a graded response. 
C)  a latent period response. 
D)  a relative refractory response. 
E)  an arbitrary response.

Question 13

Troponin

Accepted Answer

A)  has two subunits. 
B)  is part of the myosin myofilament. 
C)  is a long, flexible protein. 
D)  has a calcium-binding site. 
E)  binds to ATP. 
A)  has two subunits. 
B)  is part of the myosin myofilament. 
C)  is a long, flexible protein. 
D)  has a calcium-binding site. 
E)  binds to ATP.

Question 14

Which type of muscle tissue has spindle-shaped cells?

Accepted Answer

A)  skeletal muscle 
B)  smooth muscle 
C)  cardiac muscle 
D)  both skeletal and cardiac muscle 
E)  both cardiac and smooth muscle 
A)  skeletal muscle 
B)  smooth muscle 
C)  cardiac muscle 
D)  both skeletal and cardiac muscle 
E)  both cardiac and smooth muscle

Question 15

-What does "D" represent on the diagram?

Accepted Answer

A)  threshold 
B)  depolarization 
C)  depolarization phase of action potential 
D)  repolarization phase of action potential 
A)  threshold 
B)  depolarization 
C)  depolarization phase of action potential 
D)  repolarization phase of action potential

Question 16

-The figure illustrates a detailed drawing of the neuromuscular junction. What does "C" represent?

Accepted Answer

A)  synaptic vesicles 
B)  synaptic cleft 
C)  sarcolemma 
D)  presynaptic terminal 
E)  postsynaptic membrane 
A)  synaptic vesicles 
B)  synaptic cleft 
C)  sarcolemma 
D)  presynaptic terminal 
E)  postsynaptic membrane

Question 17

Which type of respiraiton can use a variety of molecules as energy sources?

Accepted Answer

A)  anaerobic respiration 
B)  aerobic respiration 
C)  both anaerobic and aerobic respiration 
A)  anaerobic respiration 
B)  aerobic respiration 
C)  both anaerobic and aerobic respiration

Question 18

Which of the following actions is caused by contraction of skeletal muscle?

Accepted Answer

A)  contraction of the heart 
B)  moving your feet in walking 
C)  movement of food through the digestive tract 
D)  emptying of the urinary bladder 
E)  vasoconstriction 
A)  contraction of the heart 
B)  moving your feet in walking 
C)  movement of food through the digestive tract 
D)  emptying of the urinary bladder 
E)  vasoconstriction

Question 19

Muscle myofibrils

Accepted Answer

A)  are found in the sarcolemma. 
B)  extend from the sarcolemma to the T-tubule. 
C)  contain myosin and actin myofilaments. 
D)  hold muscle cells together. 
E)  do not appear striated. 
A)  are found in the sarcolemma. 
B)  extend from the sarcolemma to the T-tubule. 
C)  contain myosin and actin myofilaments. 
D)  hold muscle cells together. 
E)  do not appear striated.

Question 20

During resting conditions, _________ is synthesized to store energy?

Accepted Answer

A)  calcium 
B)  creatine phosphate 
C)  creatine 
D)  lactic acid 
E)  pyruvic acid 
A)  calcium 
B)  creatine phosphate 
C)  creatine 
D)  lactic acid 
E)  pyruvic acid

Exam 9: Muscular System: Histology and Physiology

What type of muscle tissue causes peristalsis?

The electrical properties of cells are the result of

Which type of muscle tissue is autorhythmic?

A sarcomere extends from

An eccentric contraction is described as

A waste product of anaerobic respiration in muscle cells is

Treppe

You are hired to work in a laboratory to measure the rate of human muscle contraction. Which of the following might decrease in quantity in muscle cells undergoing contractions?

Select the term that does not belong with the others.

Which type of muscle tissue possesses striations?

Incomplete tetanus

A stimulus either causes an action potential or it doesn't. This is called

Troponin

Which type of muscle tissue has spindle-shaped cells?

-What does "D" represent on the diagram?

-The figure illustrates a detailed drawing of the neuromuscular junction. What does "C" represent?

Which type of respiraiton can use a variety of molecules as energy sources?

Which of the following actions is caused by contraction of skeletal muscle?

Muscle myofibrils

During resting conditions, _________ is synthesized to store energy?

The Human Organism

The Chemical Basis of Life

Cell Biology

Tissues

Integumentary System

Skeletal System: Bones and Bone Tissue

Skeletal System: Gross Anatomy

Joints and Movement

Muscular System: Gross Anatomy

Functional Organization of Nervous Tissue

Spinal Cord and Spinal Nerves

Brain and Cranial Nerves

Integration of Nervous System Functions

The Special Senses

Autonomic Nervous System

Functional Organization of the Endocrine System

Endocrine Glands

Cardiovascular System: Blood

Cardiovascular System: the Heart

Cardiovascular System: Blood Vessels and Circulation

Lymphatic System and Immunity

Respiratory System

Digestive System

Nutrition, Metabolism, and Temperature Regulation

Urinary System

Water, Electrolytes, and Acidbase Balance

Reproductive System

Development, Growth, Aging, and Genetics

Filters