Question 1

When comparing skeletal, cardiac, and smooth muscle structure

Accepted Answer

A)  Cardiac muscle contains triads while skeletal muscle contains diads 
B)  Sarcomere structure in smooth muscle and cardiac muscle are the same 
C)  Skeletal muscle thin filaments have actin, troponin, and tropomyosin; smooth muscle lacks troponin 
D)  Skeletal muscles consume more energy than cardiac muscle as a result of the abundance of mitochondria 
E)  T-tubule diameter in smooth muscle is smaller than in cardiac muscle 
A)  Cardiac muscle contains triads while skeletal muscle contains diads 
B)  Sarcomere structure in smooth muscle and cardiac muscle are the same 
C)  Skeletal muscle thin filaments have actin, troponin, and tropomyosin; smooth muscle lacks troponin 
D)  Skeletal muscles consume more energy than cardiac muscle as a result of the abundance of mitochondria 
E)  T-tubule diameter in smooth muscle is smaller than in cardiac muscle C

Question 2

Following the release of acetylcholine at the neuromuscular junction, an action potential travels along the _____ to the interior of the muscle cell.

Accepted Answer

A)  Sarcomere 
B)  Sarcoplasmic reticulum 
C)  Thick filament 
D)  Thin filament 
E)  Transverse tubule 
A)  Sarcomere 
B)  Sarcoplasmic reticulum 
C)  Thick filament 
D)  Thin filament 
E)  Transverse tubule E

Question 3

Which of the following is NOT a structural component of a triad?

Accepted Answer

A)  Myofibril 
B)  Sarcolemma 
C)  Sarcoplasmic reticulum 
D)  Terminal cisterna 
E)  Transverse tubule 
A)  Myofibril 
B)  Sarcolemma 
C)  Sarcoplasmic reticulum 
D)  Terminal cisterna 
E)  Transverse tubule A

Question 4

The degree of tension and force in a muscle contraction is monitored by

Accepted Answer

A)  Golgi tendon organs 
B)  Motor neurons 
C)  Muscle spindles 
D)  Nuclear bag fibers 
E)  Terminal cisternae 
A)  Golgi tendon organs 
B)  Motor neurons 
C)  Muscle spindles 
D)  Nuclear bag fibers 
E)  Terminal cisternae

Question 5

Following stimulation at the neuromuscular junction, Ca²⁺ binds to ____ on thin filaments.

Accepted Answer

A)  F-actin 
B)  G-actin 
C)  Nebulin 77 
D)  Tropomyosin 
E)  Troponin 
A)  F-actin 
B)  G-actin 
C)  Nebulin 77 
D)  Tropomyosin 
E)  Troponin

Question 6

Connective tissue that surrounds individual muscle cells is called the _____.

Accepted Answer

A)  Endomysium 
B)  Epimysium 
C)  Perimysium 
D)  Sarcolemma 
E)  Sarcoplasmic reticulum 
A)  Endomysium 
B)  Epimysium 
C)  Perimysium 
D)  Sarcolemma 
E)  Sarcoplasmic reticulum

Question 7

The structure that serves as an attachment for thin filaments and demarcates the boundary between sarcomeres in skeletal muscle is the

Accepted Answer

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

Question 8

All of the following occur during the contraction of a sarcomere except

Accepted Answer

A)  Shortening of A-band 
B)  Shortening of H-zone 
C)  Shortening of I-band. 
D)  Thin filaments slide toward M-line 
E)  Z-lines move closer together 
A)  Shortening of A-band 
B)  Shortening of H-zone 
C)  Shortening of I-band. 
D)  Thin filaments slide toward M-line 
E)  Z-lines move closer together

Question 9

The H-zone of a sarcomere contains which of the following proteins?

Accepted Answer

A)  Myosin only 
B)  Actin only 
C)  Troponin and tropomyosin 
D)  B and C only 
E)  All of the above 
A)  Myosin only 
B)  Actin only 
C)  Troponin and tropomyosin 
D)  B and C only 
E)  All of the above

When comparing skeletal, cardiac, and smooth muscle structure

Following the release of acetylcholine at the neuromuscular junction, an action potential travels along the _____ to the interior of the muscle cell.

Which of the following is NOT a structural component of a triad?

The degree of tension and force in a muscle contraction is monitored by

Following stimulation at the neuromuscular junction, Ca²⁺ binds to ____ on thin filaments.

Connective tissue that surrounds individual muscle cells is called the _____.

The structure that serves as an attachment for thin filaments and demarcates the boundary between sarcomeres in skeletal muscle is the

All of the following occur during the contraction of a sarcomere except

The H-zone of a sarcomere contains which of the following proteins?

Epithelium

Epithelial Glands

Cell Signaling

Connective Tissue

Osteogenesis

Blood and Hematopoiesis

Nervous Tissue

Sensory Organs: Vision and Hearing

Immune Lymphatic System

Integumentary System

Cardiovascular System

Respiratory System

Urinary System

Upper Digestive Segment

Lower Digestive Segment

Digestive Glands

Neuroendocrine System

Endocrine System

Spermatogenesis

Sperm Transport and Maturation

Follicle Development and the Menstrual Cycle

Fertilization, Placentation, and Lactation

Filters

Exam 7: Muscle Tissue

When comparing skeletal, cardiac, and smooth muscle structure

Following the release of acetylcholine at the neuromuscular junction, an action potential travels along the _____ to the interior of the muscle cell.

Which of the following is NOT a structural component of a triad?

The degree of tension and force in a muscle contraction is monitored by

Following stimulation at the neuromuscular junction, Ca²⁺ binds to ____ on thin filaments.

Connective tissue that surrounds individual muscle cells is called the _____.

The structure that serves as an attachment for thin filaments and demarcates the boundary between sarcomeres in skeletal muscle is the

All of the following occur during the contraction of a sarcomere except

The H-zone of a sarcomere contains which of the following proteins?

Epithelium

Epithelial Glands

Cell Signaling

Connective Tissue

Osteogenesis

Blood and Hematopoiesis

Nervous Tissue

Sensory Organs: Vision and Hearing

Immune Lymphatic System

Integumentary System

Cardiovascular System

Respiratory System

Urinary System

Upper Digestive Segment

Lower Digestive Segment

Digestive Glands

Neuroendocrine System

Endocrine System

Spermatogenesis

Sperm Transport and Maturation

Follicle Development and the Menstrual Cycle

Fertilization, Placentation, and Lactation

Filters