Question 1

Match the types of muscles, labelled a. through g., with the properties in question. (Options may be used more than once or not at all.)
-contain(s) gap junctions

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 2

A skeletal muscle undergoes hypertrophy mainly by producing many more muscle fibres.

Accepted Answer

A) True 
 B)False

Question 3

Match the muscle-tension receptors, labelled a. through c., with the characteristics. (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 4

Which of these statements is NOT characteristic of cross bridges

Accepted Answer

A) They are a component of thin filaments. 
B) They are composed of myosin. 
C) They have an actin binding site. 
D) They have an ATPase binding site. 
A) They are a component of thin filaments. 
B) They are composed of myosin. 
C) They have an actin binding site. 
D) They have an ATPase binding site.

Question 5

Which of these statements describes cross bridges

Accepted Answer

A) They extend between the A and the I bands, and bend to pull the bands together during muscle contraction. 
B) They are formed by the spherical actin molecules. 
C) They extend from the thick filaments and bind to actin, then bend to pull the thin filaments in closer together during muscle contraction. 
D) The A band is shorter than the I band. 
A) They extend between the A and the I bands, and bend to pull the bands together during muscle contraction. 
B) They are formed by the spherical actin molecules. 
C) They extend from the thick filaments and bind to actin, then bend to pull the thin filaments in closer together during muscle contraction. 
D) The A band is shorter than the I band.

Question 6

The skeletal muscle shortens during concentric, isotonic contraction.

Accepted Answer

A) True 
 B)False

Question 7

Which of the following applies during an isotonic contraction of a muscle in the arm

Accepted Answer

A) The muscle does not contract. 
B) The muscle does not change length. 
C) The tension in the muscle does not overcome a load. 
D) The tension in the muscle remains constant. 
A) The muscle does not contract. 
B) The muscle does not change length. 
C) The tension in the muscle does not overcome a load. 
D) The tension in the muscle remains constant.

Question 8

Which of these statements describes actin

Accepted Answer

A) It has ATPase activity. 
B) It is shaped like a golf club. 
C) It is a regulatory protein. 
D) It forms a helical chain that forms the main structural component of the thin filaments. 
A) It has ATPase activity. 
B) It is shaped like a golf club. 
C) It is a regulatory protein. 
D) It forms a helical chain that forms the main structural component of the thin filaments.

Question 9

Match the muscle-tension receptors, labelled a. through c., with the characteristics. (Options may be used more than once or not at all.)
-involved in negative feedback

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 10

Which of these statements describes a motor unit

Accepted Answer

A) a single motor neuron plus all the muscle fibres it innervates 
B) a single muscle fibre plus all the motor neurons that innervate it 
C) all the motor neurons supplying a single muscle 
D) one pair of antagonistic muscles 
A) a single motor neuron plus all the muscle fibres it innervates 
B) a single muscle fibre plus all the motor neurons that innervate it 
C) all the motor neurons supplying a single muscle 
D) one pair of antagonistic muscles

Question 11

A motor unit is a single muscle plus all the motor neurons that innervate it.

Accepted Answer

A) True 
 B)False

Question 12

Match the types of muscles, labelled a. through g., with the properties in question. (Options may be used more than once or not at all.)
-Myosin must be phosphorylated before it can bind with actin

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 13

Muscles developing tension while lengthening are performing what type of contractions

Accepted Answer

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

Question 14

Match the types of muscles, labelled a. through g., with the properties in question. (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 15

Match the skeletal muscle proteins, labelled a. through f., with the descriptions. (Options may be used more than once or not at all.)
-found in the A 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 16

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

Accepted Answer

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

Question 17

The corticospinal system controls fine, discrete, voluntary body movements.

Accepted Answer

A) True 
 B)False

Question 18

Which of the following composes thick filaments in skeletal muscle

Accepted Answer

A) actin only 
B) troponin and tropomyosin only 
C) myosin only 
D) actin, troponin, and tropomyosin 
A) actin only 
B) troponin and tropomyosin only 
C) myosin only 
D) actin, troponin, and tropomyosin

Question 19

Which of these statements describes Z lines

Accepted Answer

A) They are formed by T tubules. 
B) They extend down the middle of the I band. 
C) They are formed by cross bridges. 
D) They are filaments. 
A) They are formed by T tubules. 
B) They extend down the middle of the I band. 
C) They are formed by cross bridges. 
D) They are filaments.

Question 20

Describe calcium's role in the contraction of the sarcomere in skeletal and cardiac muscle tissues.

Accepted Answer

Calcium plays a crucial role in the cont

Match the types of muscles, labelled a. through g., with the properties in question. (Options may be used more than once or not at all.) -contain(s) gap junctions

A skeletal muscle undergoes hypertrophy mainly by producing many more muscle fibres.

Match the muscle-tension receptors, labelled a. through c., with the characteristics. (Options may be used more than once or not at all.) -activated by muscle stretch

Which of these statements is NOT characteristic of cross bridges

Which of these statements describes cross bridges

The skeletal muscle shortens during concentric, isotonic contraction.

Which of the following applies during an isotonic contraction of a muscle in the arm

Which of these statements describes actin

Match the muscle-tension receptors, labelled a. through c., with the characteristics. (Options may be used more than once or not at all.) -involved in negative feedback

Which of these statements describes a motor unit

A motor unit is a single muscle plus all the motor neurons that innervate it.

Match the types of muscles, labelled a. through g., with the properties in question. (Options may be used more than once or not at all.) -Myosin must be phosphorylated before it can bind with actin

Muscles developing tension while lengthening are performing what type of contractions

Match the types of muscles, labelled a. through g., with the properties in question. (Options may be used more than once or not at all.) -Thick and thin filaments are highly organized into a banding pattern.

Match the skeletal muscle proteins, labelled a. through f., with the descriptions. (Options may be used more than once or not at all.) -found in the A band

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

The corticospinal system controls fine, discrete, voluntary body movements.

Which of the following composes thick filaments in skeletal muscle

Which of these statements describes Z lines

Describe calcium's role in the contraction of the sarcomere in skeletal and cardiac muscle tissues.

The Foundation of Physiology

Cell Physiology

The Central Nervous System

The Peripheral Nervous System: Sensory, Autonomic, Somatic

Principles of Endocrinology: The Central Endocrine Glands

The Endocrine Glands

Cardiac Physiology

Vascular Physiology

The Blood

Body Defences

The Respiratory System

The Urinary System

Fluid and Acidbase Balance

The Digestive System

Energy Balance and Temperature Regulation

The Reproductive System

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Exam 7: Muscle Physiology

Match the types of muscles, labelled a. through g., with the properties in question. (Options may be used more than once or not at all.) -contain(s) gap junctions

A skeletal muscle undergoes hypertrophy mainly by producing many more muscle fibres.

Match the muscle-tension receptors, labelled a. through c., with the characteristics. (Options may be used more than once or not at all.) -activated by muscle stretch

Which of these statements is NOT characteristic of cross bridges

Which of these statements describes cross bridges

The skeletal muscle shortens during concentric, isotonic contraction.

Which of the following applies during an isotonic contraction of a muscle in the arm

Which of these statements describes actin

Match the muscle-tension receptors, labelled a. through c., with the characteristics. (Options may be used more than once or not at all.) -involved in negative feedback

Which of these statements describes a motor unit

A motor unit is a single muscle plus all the motor neurons that innervate it.

Match the types of muscles, labelled a. through g., with the properties in question. (Options may be used more than once or not at all.) -Myosin must be phosphorylated before it can bind with actin

Muscles developing tension while lengthening are performing what type of contractions

Match the types of muscles, labelled a. through g., with the properties in question. (Options may be used more than once or not at all.) -Thick and thin filaments are highly organized into a banding pattern.

Match the skeletal muscle proteins, labelled a. through f., with the descriptions. (Options may be used more than once or not at all.) -found in the A band

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

The corticospinal system controls fine, discrete, voluntary body movements.

Which of the following composes thick filaments in skeletal muscle

Which of these statements describes Z lines

Describe calcium's role in the contraction of the sarcomere in skeletal and cardiac muscle tissues.

The Foundation of Physiology

Cell Physiology

The Central Nervous System

The Peripheral Nervous System: Sensory, Autonomic, Somatic

Principles of Endocrinology: The Central Endocrine Glands

The Endocrine Glands

Cardiac Physiology

Vascular Physiology

The Blood

Body Defences

The Respiratory System

The Urinary System

Fluid and Acidbase Balance

The Digestive System

Energy Balance and Temperature Regulation

The Reproductive System

Filters