Question 1

Oxidative phosphorylation occurs within the mitochondria of muscle cells.

Accepted Answer

A) True 
 B)False

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).
-spherical

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 you wanted to pick up something heavier than your pencil,you would need to have a stronger muscle contraction.In what way might you accomplish this?

Accepted Answer

A)  Stimulate more motor units. 
B)  Decrease the frequency of stimulation to allow a more prolonged contraction to occur. 
C)  Decrease the refractory period. 
D)  Block acetylcholinesterase at the neuromuscular junction to allow acetylcholine to function longer. 
A)  Stimulate more motor units. 
B)  Decrease the frequency of stimulation to allow a more prolonged contraction to occur. 
C)  Decrease the refractory period. 
D)  Block acetylcholinesterase at the neuromuscular junction to allow acetylcholine to function longer.

Question 4

When does spastic paralysis occur?

Accepted Answer

A)  when descending excitatory pathways are destroyed 
B)  when excitatory inputs to motor neurons are unopposed because of disruption of an inhibitory system in the brain stem 
C)  when muscle spindles are destroyed 
D)  when the cerebellum is damaged 
A)  when descending excitatory pathways are destroyed 
B)  when excitatory inputs to motor neurons are unopposed because of disruption of an inhibitory system in the brain stem 
C)  when muscle spindles are destroyed 
D)  when the cerebellum is damaged

Question 5

Indicate which characteristic applies to which type of muscle by using the answer code (options may be used more than once or not at all).
-does not accomplish any work

Accepted Answer

A) isometric contraction 
B) isotonic contraction 
A) isometric contraction 
B) isotonic contraction

Question 6

For a(n)____________________ isotonic contraction,the contraction resists the stretching of the muscle.

Accepted Answer

The answer of For a(n)____________________ isotonic contraction,the contraction resists the...

Question 7

What is a characteristic feature of isometric muscle contractions?

Accepted Answer

A)  They occur at constant tension. 
B)  The muscle shortens. 
C)  They are used for body movements. 
D)  They occur at constant length. 
A)  They occur at constant tension. 
B)  The muscle shortens. 
C)  They are used for body movements. 
D)  They occur at constant length.

Question 8

All skeletal muscles are attached to the skeleton.

Accepted Answer

A) True 
 B)False

Question 9

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).
-thick and thin filaments are highly organized into a banding pattern

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 10

More tension is developed during twitch summation than during a single twitch because the duration of elevated cytosolic Ca²⁺ concentration increases during summation,thus increasing the availability of cross-bridge binding sites.

Accepted Answer

A) True 
 B)False

Question 11

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).
-can bind with Ca²⁺ during contraction

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 12

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).
-found in the I band

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 13

How does contraction of smooth muscle differ from that of skeletal muscle?

Accepted Answer

The answer of How does contraction of smooth muscle differ...

Question 14

To pick up a book which statement is true?

Accepted Answer

A)  muscle tension must be lesser than the load 
B)  the muscle must lengthen during contraction 
C)  muscle tension remains constant as the muscle changes length 
D)  muscle length remains constant as the muscle tension changes 
A)  muscle tension must be lesser than the load 
B)  the muscle must lengthen during contraction 
C)  muscle tension remains constant as the muscle changes length 
D)  muscle length remains constant as the muscle tension changes

Question 15

Match the sarcomere component with the correct characteristic by using the answer code (options may be used more than once or not at all).
-runs down the middle of the A band

Accepted Answer

A) Z line 
B) A band 
C) I band 
D) H zone 
A) Z line 
B) A band 
C) I band 
D) H zone

Question 16

Which of the following properties characterize fast-oxidative (type IIa)muscle fibres?

Accepted Answer

A)  high myosin-ATPase activity 
B)  low myosin-ATPase activity 
C)  low oxidative capacity 
D)  high oxidative capacity. 
A)  high myosin-ATPase activity 
B)  low myosin-ATPase activity 
C)  low oxidative capacity 
D)  high oxidative capacity.

Question 17

Match the sarcomere component with the correct characteristic by using the answer code (options may be used more than once or not at all).
-contains only thin filaments

Accepted Answer

A) Z line 
B) A band 
C) I band 
D) H zone 
A) Z line 
B) A band 
C) I band 
D) H zone

Question 18

Which of the following is correct about intrafusal muscle fibres?

Accepted Answer

A)  They are supplied by alpha motor neurons. 
B)  They are found within muscle cell membrane. 
C)  They contain sensory nerve endings that are activated by stretch. 
D)  They contain contractile elements. 
A)  They are supplied by alpha motor neurons. 
B)  They are found within muscle cell membrane. 
C)  They contain sensory nerve endings that are activated by stretch. 
D)  They contain contractile elements.

Question 19

____________________ occurs when acetylcholine is no longer available in adequate amounts to stimulate muscle fibres.

Accepted Answer

Neuromuscu

Question 20

Indicate which of the characteristics in question applies to each of the muscle fibre types by using the answer code (options may be used more than once or not at all).
-hypertrophies in response to weight training

Accepted Answer

A) slow-oxidative fibre 
B) fast-oxidative fibre 
C) fast-glycolytic fibre 
A) slow-oxidative fibre 
B) fast-oxidative fibre 
C) fast-glycolytic fibre

Oxidative phosphorylation occurs within the mitochondria of muscle cells.

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). -spherical

If you wanted to pick up something heavier than your pencil,you would need to have a stronger muscle contraction.In what way might you accomplish this?

When does spastic paralysis occur?

Indicate which characteristic applies to which type of muscle by using the answer code (options may be used more than once or not at all). -does not accomplish any work

For a(n)____________________ isotonic contraction,the contraction resists the stretching of the muscle.

What is a characteristic feature of isometric muscle contractions?

All skeletal muscles are attached to the skeleton.

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). -thick and thin filaments are highly organized into a banding pattern

More tension is developed during twitch summation than during a single twitch because the duration of elevated cytosolic Ca²⁺ concentration increases during summation,thus increasing the availability of cross-bridge binding sites.

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). -can bind with Ca²⁺ during contraction

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). -found in the I band

How does contraction of smooth muscle differ from that of skeletal muscle?

To pick up a book which statement is true?

Match the sarcomere component with the correct characteristic by using the answer code (options may be used more than once or not at all). -runs down the middle of the A band

Which of the following properties characterize fast-oxidative (type IIa)muscle fibres?

Match the sarcomere component with the correct characteristic by using the answer code (options may be used more than once or not at all). -contains only thin filaments

Which of the following is correct about intrafusal muscle fibres?

____________________ occurs when acetylcholine is no longer available in adequate amounts to stimulate muscle fibres.

Indicate which of the characteristics in question applies to each of the muscle fibre types by using the answer code (options may be used more than once or not at all). -hypertrophies in response to weight training

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

Exam 6: Muscle Physiology

Oxidative phosphorylation occurs within the mitochondria of muscle cells.

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). -spherical

If you wanted to pick up something heavier than your pencil,you would need to have a stronger muscle contraction.In what way might you accomplish this?

When does spastic paralysis occur?

Indicate which characteristic applies to which type of muscle by using the answer code (options may be used more than once or not at all). -does not accomplish any work

For a(n)____________________ isotonic contraction,the contraction resists the stretching of the muscle.

What is a characteristic feature of isometric muscle contractions?

All skeletal muscles are attached to the skeleton.

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). -thick and thin filaments are highly organized into a banding pattern

More tension is developed during twitch summation than during a single twitch because the duration of elevated cytosolic Ca²⁺ concentration increases during summation,thus increasing the availability of cross-bridge binding sites.

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). -can bind with Ca²⁺ during contraction

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). -found in the I band

How does contraction of smooth muscle differ from that of skeletal muscle?

To pick up a book which statement is true?

Match the sarcomere component with the correct characteristic by using the answer code (options may be used more than once or not at all). -runs down the middle of the A band

Which of the following properties characterize fast-oxidative (type IIa)muscle fibres?

Match the sarcomere component with the correct characteristic by using the answer code (options may be used more than once or not at all). -contains only thin filaments

Which of the following is correct about intrafusal muscle fibres?

____________________ occurs when acetylcholine is no longer available in adequate amounts to stimulate muscle fibres.

Indicate which of the characteristics in question applies to each of the muscle fibre types by using the answer code (options may be used more than once or not at all). -hypertrophies in response to weight training

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