Question 1

In comparing smooth and cardiac muscle, which one of the following best describes the differences between the two muscle types?

Accepted Answer

A)  Smooth muscle is voluntary, whereas cardiac is involuntary. 
B)  Both lack muscle filaments, but cardiac muscle has sarcomeres. 
C)  Cardiac muscle requires periods of relaxation, whereas smooth muscle is always in a state of partial contraction. 
D)  Cardiac muscle filaments are arranged in bundles, whereas smooth muscles lack filament bundles. 
E)  Cardiac muscle contracts slowly compared to smooth muscle. 
A)  Smooth muscle is voluntary, whereas cardiac is involuntary. 
B)  Both lack muscle filaments, but cardiac muscle has sarcomeres. 
C)  Cardiac muscle requires periods of relaxation, whereas smooth muscle is always in a state of partial contraction. 
D)  Cardiac muscle filaments are arranged in bundles, whereas smooth muscles lack filament bundles. 
E)  Cardiac muscle contracts slowly compared to smooth muscle.

Question 2

Match the following.
-complete cycle of contraction and relaxation

Accepted Answer

A) relaxation 
B) fast-twitch fibers 
C) twitch 
D) fatigue 
E) intercalated discs
F)latent period
G)slow-twitch fibers
H)recruitment
I)contraction 
A) relaxation 
B) fast-twitch fibers 
C) twitch 
D) fatigue 
E) intercalated discs
F)latent period
G)slow-twitch fibers
H)recruitment
I)contraction

Question 3

The portion of a myofibril from one Z-line to the next is a(n) ________.

Accepted Answer

The answer of The portion of a myofibril from one...

Question 4

Match the following.
-increases muscle force by activating more motor units

Accepted Answer

A) relaxation 
B) fast-twitch fibers 
C) twitch 
D) fatigue 
E) intercalated discs
F)latent period
G)slow-twitch fibers
H)recruitment
I)contraction 
A) relaxation 
B) fast-twitch fibers 
C) twitch 
D) fatigue 
E) intercalated discs
F)latent period
G)slow-twitch fibers
H)recruitment
I)contraction

Question 5

In which one of the following would one expect to find motor units made up of only a few muscle cells?

Accepted Answer

A)  arm muscles 
B)  eye muscles 
C)  chest muscles 
D)  thigh muscles 
E)  lower-leg muscles 
A)  arm muscles 
B)  eye muscles 
C)  chest muscles 
D)  thigh muscles 
E)  lower-leg muscles

Question 6

During the stage called ________ in a myogram, calcium is transported into the sarcoplasmic reticulum.

Accepted Answer

The answer of During the stage called ________ in a...

Question 7

The ability to maintain an upright position is due to ________ muscle contractions.

Accepted Answer

The answer of The ability to maintain an upright position...

In comparing smooth and cardiac muscle, which one of the following best describes the differences between the two muscle types?

Match the following. -complete cycle of contraction and relaxation

The portion of a myofibril from one Z-line to the next is a(n) ________.

Match the following. -increases muscle force by activating more motor units

In which one of the following would one expect to find motor units made up of only a few muscle cells?

During the stage called ________ in a myogram, calcium is transported into the sarcoplasmic reticulum.

The ability to maintain an upright position is due to ________ muscle contractions.

Human Biology, Science, and Society

The Chemistry of Living Things

Structure and Function of Cells

From Cells to Organ Systems

The Skeletal System

Blood

Heart and Blood Vessels

The Immune System and Mechanisms of Defense

The Respiratory System: Exchange of Gases

The Nervous System: Integration and Control

Sensory Mechanisms

The Endocrine System

The Digestive System and Nutrition

The Urinary System

Reproductive Systems

Cell Reproduction and Differentiation

Cancer: Uncontrolled Cell Division and Differentiation

Genetics and Inheritance

DNA Technology and Genetic Engineering

Development and Aging

Evolution and the Origins of Life

Ecosystems and Populations

Human Impacts, Biodiversity, and Environmental Issues

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Exam 6: The Muscular System

In comparing smooth and cardiac muscle, which one of the following best describes the differences between the two muscle types?

Match the following. -complete cycle of contraction and relaxation

The portion of a myofibril from one Z-line to the next is a(n) ________.

Match the following. -increases muscle force by activating more motor units

In which one of the following would one expect to find motor units made up of only a few muscle cells?

During the stage called ________ in a myogram, calcium is transported into the sarcoplasmic reticulum.

The ability to maintain an upright position is due to ________ muscle contractions.

Human Biology, Science, and Society

The Chemistry of Living Things

Structure and Function of Cells

From Cells to Organ Systems

The Skeletal System

Blood

Heart and Blood Vessels

The Immune System and Mechanisms of Defense

The Respiratory System: Exchange of Gases

The Nervous System: Integration and Control

Sensory Mechanisms

The Endocrine System

The Digestive System and Nutrition

The Urinary System

Reproductive Systems

Cell Reproduction and Differentiation

Cancer: Uncontrolled Cell Division and Differentiation

Genetics and Inheritance

DNA Technology and Genetic Engineering

Development and Aging

Evolution and the Origins of Life

Ecosystems and Populations

Human Impacts, Biodiversity, and Environmental Issues

Filters