Question 1

Indicate the characteristics of the muscle-tension receptors by using the answer code (options may be used more than once or not at all).
-activated by muscle stretch

Accepted Answer

A) muscle spindle 
B) Golgi tendon organ 
C) both of these receptors 
A) muscle spindle 
B) Golgi tendon organ 
C) both of these receptors

Question 2

MATCHING
Indicate which of the muscle proteins in skeletal muscle is associated with the item in question by using the following code (options may be used more than once or not at all).
-regulatory protein(s)

Accepted Answer

A) actin only 
B) myosin only 
C) actin and myosin 
D) troponin-tropomyosin complex 
E) actin, troponin, and tropomyosin
F)actin, myosin, troponin, and tropomyosin 
A) actin only 
B) myosin only 
C) actin and myosin 
D) troponin-tropomyosin complex 
E) actin, troponin, and tropomyosin
F)actin, myosin, troponin, and tropomyosin

Question 3

If the load on a muscle is increased,eventually a load will be reached at which the velocity of shortening becomes zero.At this point,what is the term for the muscle contraction?

Accepted Answer

A)  concentric 
B)  eccentric 
C)  isotonic 
D)  isometric 
A)  concentric 
B)  eccentric 
C)  isotonic 
D)  isometric

Question 4

The lever system at the elbow joint provides a mechanical advantage so that when the biceps muscle contracts to flex the elbow joint and lift an object in the hand,the force developed in the biceps can be considerably less than the actual load that is moved.

Accepted Answer

A) True 
 B)False

Question 5

Indicate which type of muscle is associated with the property in question by using the answer code (options may be used more than once or not at all).
-found in the heart

Accepted Answer

A) skeletal muscle only 
B) single-unit smooth muscle only 
C) cardiac muscle only 
D) skeletal muscle and cardiac muscle 
E) skeletal muscle and single-unit smooth muscle
F)single-unit smooth muscle and cardiac muscle
G)skeletal, single-unit smooth, and cardiac muscles 
A) skeletal muscle only 
B) single-unit smooth muscle only 
C) cardiac muscle only 
D) skeletal muscle and cardiac muscle 
E) skeletal muscle and single-unit smooth muscle
F)single-unit smooth muscle and cardiac muscle
G)skeletal, single-unit smooth, and cardiac muscles

Question 6

In a state of ____________________,a muscle cannot maintain any kind of tension.

Accepted Answer

The answer of In a state of ____________________,a muscle cannot...

Question 7

According to the sliding filament mechanism of muscle contraction,the muscle fibres of one motor unit slide in closer together between the muscle fibres of adjacent motor units.

Accepted Answer

A) True 
 B)False

Question 8

Acetylcholinesterase removes ACh from receptors.

Accepted Answer

A) True 
 B)False

Question 9

The work performed by a muscle is the force it develops divided by distance.

Accepted Answer

A) True 
 B)False

Question 10

Which chemical is required for contraction of smooth muscle fibres?

Accepted Answer

A)  sodium 
B)  calmodulin 
C)  potassium 
D)  myosin 
A)  sodium 
B)  calmodulin 
C)  potassium 
D)  myosin

Question 11

Indicate the characteristics of the muscle-tension receptors by using the answer code (options may be used more than once or not at all).
-initiates a monosynaptic reflex

Accepted Answer

A) muscle spindle 
B) Golgi tendon organ 
C) both of these receptors 
A) muscle spindle 
B) Golgi tendon organ 
C) both of these receptors

Question 12

The functional unit of skeletal muscle is a(n)____________________.

Accepted Answer

The answer of The functional unit of skeletal muscle is...

Question 13

Which statement concerning myosin is correct?

Accepted Answer

A)  It is found in the A band. 
B)  It is found in the I band. 
C)  It is the primary protein found in the thin filaments. 
D)  It contracts during muscle contraction because it is one of the contractile proteins. 
A)  It is found in the A band. 
B)  It is found in the I band. 
C)  It is the primary protein found in the thin filaments. 
D)  It contracts during muscle contraction because it is one of the contractile proteins.

Question 14

Which of the following binds with calcium that enters the cell during smooth muscle excitation?

Accepted Answer

A)  calmodulin 
B)  inactive myosin kinase 
C)  troponin 
D)  myosin 
A)  calmodulin 
B)  inactive myosin kinase 
C)  troponin 
D)  myosin

Question 15

In smooth muscle,Ca²⁺ binds with the protein ____________________,which is structurally similar to troponin.

Accepted Answer

The answer of In smooth muscle,Ca²⁺ binds with the protein...

Question 16

Why must the oxygen debt be "paid off" following rigorous muscular activity?

Accepted Answer

A)  Creatine phosphate must be regenerated. 
B)  Lactic acid must be repleted. 
C)  Glycogen stores must be depleted. 
D)  Creatine phosphate must be depleted. 
A)  Creatine phosphate must be regenerated. 
B)  Lactic acid must be repleted. 
C)  Glycogen stores must be depleted. 
D)  Creatine phosphate must be depleted.

Question 17

Which of the following is correct for multiunit smooth muscle?

Accepted Answer

A)  It is chemically activated. 
B)  It is under ANS control. 
C)  It is found in the walls of the digestive system. 
D)  Most smooth muscle is multiunit smooth muscle. 
A)  It is chemically activated. 
B)  It is under ANS control. 
C)  It is found in the walls of the digestive system. 
D)  Most smooth muscle is multiunit smooth muscle.

Question 18

Indicate which type of muscle is associated with the property in question by using the answer code (options may be used more than once or not at all).
-innervated by motor neurons

Accepted Answer

A) skeletal muscle only 
B) single-unit smooth muscle only 
C) cardiac muscle only 
D) skeletal muscle and cardiac muscle 
E) skeletal muscle and single-unit smooth muscle
F)single-unit smooth muscle and cardiac muscle
G)skeletal, single-unit smooth, and cardiac muscles 
A) skeletal muscle only 
B) single-unit smooth muscle only 
C) cardiac muscle only 
D) skeletal muscle and cardiac muscle 
E) skeletal muscle and single-unit smooth muscle
F)single-unit smooth muscle and cardiac muscle
G)skeletal, single-unit smooth, and cardiac muscles

Question 19

Anaerobic exercise is endurance-type exercise.

Accepted Answer

A) True 
 B)False

Question 20

Which statement is true regarding the sliding-filament mechanism of muscle contraction?

Accepted Answer

A)  A bands slide in closer between the I bands 
B)  thin filaments slide inward toward the centre of the A band 
C)  Z lines slide in between the T tubules 
D)  contractile proteins contract, thus shortening the sarcomere 
A)  A bands slide in closer between the I bands 
B)  thin filaments slide inward toward the centre of the A band 
C)  Z lines slide in between the T tubules 
D)  contractile proteins contract, thus shortening the sarcomere

Indicate the characteristics of the muscle-tension receptors by using the answer code (options may be used more than once or not at all). -activated by muscle stretch

MATCHING Indicate which of the muscle proteins in skeletal muscle is associated with the item in question by using the following code (options may be used more than once or not at all). -regulatory protein(s)

If the load on a muscle is increased,eventually a load will be reached at which the velocity of shortening becomes zero.At this point,what is the term for the muscle contraction?

The lever system at the elbow joint provides a mechanical advantage so that when the biceps muscle contracts to flex the elbow joint and lift an object in the hand,the force developed in the biceps can be considerably less than the actual load that is moved.

Indicate which type of muscle is associated with the property in question by using the answer code (options may be used more than once or not at all). -found in the heart

In a state of ____________________,a muscle cannot maintain any kind of tension.

According to the sliding filament mechanism of muscle contraction,the muscle fibres of one motor unit slide in closer together between the muscle fibres of adjacent motor units.

Acetylcholinesterase removes ACh from receptors.

The work performed by a muscle is the force it develops divided by distance.

Which chemical is required for contraction of smooth muscle fibres?

Indicate the characteristics of the muscle-tension receptors by using the answer code (options may be used more than once or not at all). -initiates a monosynaptic reflex

The functional unit of skeletal muscle is a(n)____________________.

Which statement concerning myosin is correct?

Which of the following binds with calcium that enters the cell during smooth muscle excitation?

In smooth muscle,Ca²⁺ binds with the protein ____________________,which is structurally similar to troponin.

Why must the oxygen debt be "paid off" following rigorous muscular activity?

Which of the following is correct for multiunit smooth muscle?

Indicate which type of muscle is associated with the property in question by using the answer code (options may be used more than once or not at all). -innervated by motor neurons

Anaerobic exercise is endurance-type exercise.

Which statement is true regarding the sliding-filament mechanism of muscle contraction?

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Exam 6: Muscle Physiology

Indicate the characteristics of the muscle-tension receptors by using the answer code (options may be used more than once or not at all). -activated by muscle stretch

MATCHING Indicate which of the muscle proteins in skeletal muscle is associated with the item in question by using the following code (options may be used more than once or not at all). -regulatory protein(s)

If the load on a muscle is increased,eventually a load will be reached at which the velocity of shortening becomes zero.At this point,what is the term for the muscle contraction?

The lever system at the elbow joint provides a mechanical advantage so that when the biceps muscle contracts to flex the elbow joint and lift an object in the hand,the force developed in the biceps can be considerably less than the actual load that is moved.

Indicate which type of muscle is associated with the property in question by using the answer code (options may be used more than once or not at all). -found in the heart

In a state of ____________________,a muscle cannot maintain any kind of tension.

According to the sliding filament mechanism of muscle contraction,the muscle fibres of one motor unit slide in closer together between the muscle fibres of adjacent motor units.

Acetylcholinesterase removes ACh from receptors.

The work performed by a muscle is the force it develops divided by distance.

Which chemical is required for contraction of smooth muscle fibres?

Indicate the characteristics of the muscle-tension receptors by using the answer code (options may be used more than once or not at all). -initiates a monosynaptic reflex

The functional unit of skeletal muscle is a(n)____________________.

Which statement concerning myosin is correct?

Which of the following binds with calcium that enters the cell during smooth muscle excitation?

In smooth muscle,Ca²⁺ binds with the protein ____________________,which is structurally similar to troponin.

Why must the oxygen debt be "paid off" following rigorous muscular activity?

Which of the following is correct for multiunit smooth muscle?

Indicate which type of muscle is associated with the property in question by using the answer code (options may be used more than once or not at all). -innervated by motor neurons

Anaerobic exercise is endurance-type exercise.

Which statement is true regarding the sliding-filament mechanism of muscle contraction?

The Foundation of Physiology

Cell Physiology

The Central Nervous System

The Peripheral Nervous System

Principals of Endocrinology; The Central Endocrine Glands

Cardiac Physiology

Vascular Physiology

The Blood

Body Defences

The Respiratory System

The Urinary System

Fluid and Acid Base Balance

The Digestive System

Energy Balance and Temperature Regulation

The Endocrine Glands

The Reproductive System

Filters