Question 1

A motor unit is

Accepted Answer

A)   a motor neuron and all of the muscle fibers to which it connects.
B)   a sensory neuron and two muscle fibers.
C)   a motor neuron and a whole muscle.
D)   a sensory neuron and several sarcomeres.
E)   a motor neuron and several sarcomeres.F) A) and E)
G) A) and B)

Question 2

Ligaments are connective tissues that connect _____ to _____.

Accepted Answer

A)   muscle; muscle
B)   muscle; bone
C)   tendons; bone
D)   bone; bone
E)   cartilage; boneF) B) and C)
G) A) and B)

Question 3

An area where two bones meet is called a

Accepted Answer

A)   synapse.
B)   joint.
C)   synaptic cleft.
D)   vascular cavity.
E)   olfactory bulb.F) A) and C)
G) A) and D)

Question 4

You are looking at sonograms and are observing fetal bones.Compared to a much earlier sonogram,you can see that this stage of development shows

Accepted Answer

A)   calcified cartilage in the long bones.
B)   cartilage in the long bones.
C)   compact bone in the long bones.
D)   spongy bone in the long bones.
E)   None of the answer choices are correct.F) A) and D)
G) A) and C)

Question 5

If you placed an electrode on a person's triceps and stimulated the muscle daily over several weeks,which of the following would occur?

Accepted Answer

A)   That person would not be able to straighten his/her leg, and the muscle would grow.
B)   That person would not be able to straighten his/her arm, and the muscle would degenerate.
C)   That person would not be able to bend his/her leg, and the muscle would grow.
D)   That person would have difficulty bending his/her arm, and the muscle would grow.
E)   None of the answer choices is correct.F) A) and B)
G) A) and C)

Question 6

What does the high level similarity between the myosin gene sequences in human and nonhuman primates suggest?

Accepted Answer

A)   Humans and nonhuman primates had a common ancestor at some time in the past.
B)   Humans and nonhuman primates had a common ancestor 2.4 million years ago.
C)   The myosin gene arose independently in humans and nonhuman primates.
D)   Genes can transfer readily between humans and nonhuman primates.
E)   No natural selection has occurred in humans.F) C) and E)
G) B) and D)

Question 7

When examining a mutant mouse,you notice that its skeletal muscle looks very uniform,lacking in striations.To figure out what the mutation is in this mouse,you would begin by looking at

Accepted Answer

A)   sarcomere organization.
B)   the retention of calcium in the endoplasmic reticulum.
C)   tendons.
D)   the blood vessels in the muscles.
E)   the sheath around muscles.F) B) and D)
G) None of the above

Question 8

The two closely allied organ systems that allow for running,swimming,and flying under the direction of the nervous system are the _____ systems.

Accepted Answer

A)   skeletal and endocrine
B)   muscular and endocrine
C)   muscular and skeletal
D)   circulatory and muscular
E)   circulatory and skeletalF) A) and C)
G) D) and E)

Question 9

During development,bone becomes progressively more calcified and hardened.

Accepted Answer

A) True 
 B)False

Question 10

You are trying out for the USA Olympic gymnastics team.Everything is going well until you turn your ankle on the landing and tear a connection between two bones.Now you will have to wait another 4 years.You probably

Accepted Answer

A)   sprained a ligament.
B)   strained a ligament.
C)   sprained a tendon.
D)   strained a tendon.E) C) and D)
F) A) and B)

Question 11

Which is the basic unit in a skeletal muscle?

Accepted Answer

A)   muscle fiber
B)   blood vessel
C)   sheath
D)   tendon
E)   ligamentF) B) and D)
G) A) and E)

Question 12

Which is the neurotransmitter used by motor neurons to communicate with muscle cells?

Accepted Answer

A)   acetylcholine
B)   GABA
C)   glutamine
D)   fatty acids
E)   serotoninF) A) and B)
G) A) and C)

Exam 29: The Skeletal and Muscular Systems

The two closely allied organ systems that allow for running,swimming,and flying under the direction of the nervous system are the _____ systems.

Correct Answer
verified

You are trying out for the USA Olympic gymnastics team.Everything is going well until you turn your ankle on the landing and tear a connection between two bones.Now you will have to wait another 4 years.You probably

Correct Answer
verified

What does the high level similarity between the myosin gene sequences in human and nonhuman primates suggest?

Correct Answer
verified

Which is the basic unit in a skeletal muscle?

Correct Answer
verified

If you placed an electrode on a person's triceps and stimulated the muscle daily over several weeks,which of the following would occur?

Correct Answer
verified

Ligaments are connective tissues that connect _ to _.

Correct Answer
verified

When examining a mutant mouse,you notice that its skeletal muscle looks very uniform,lacking in striations.To figure out what the mutation is in this mouse,you would begin by looking at

Correct Answer
verified

During development,bone becomes progressively more calcified and hardened.

Correct Answer
verified

An area where two bones meet is called a

Correct Answer
verified

A motor unit is

Correct Answer
verified

Which is the neurotransmitter used by motor neurons to communicate with muscle cells?

Correct Answer
verified

You are looking at sonograms and are observing fetal bones.Compared to a much earlier sonogram,you can see that this stage of development shows

Correct Answer
verified

Exam 29: The Skeletal and Muscular Systems

The two closely allied organ systems that allow for running,swimming,and flying under the direction of the nervous system are the _____ systems.

Correct AnswerverifiedShow Answer

You are trying out for the USA Olympic gymnastics team.Everything is going well until you turn your ankle on the landing and tear a connection between two bones.Now you will have to wait another 4 years.You probably

Correct AnswerverifiedShow Answer

What does the high level similarity between the myosin gene sequences in human and nonhuman primates suggest?

Correct AnswerverifiedShow Answer

Which is the basic unit in a skeletal muscle?

Correct AnswerverifiedShow Answer

If you placed an electrode on a person's triceps and stimulated the muscle daily over several weeks,which of the following would occur?

Correct AnswerverifiedShow Answer

Ligaments are connective tissues that connect _____ to _____.

Correct AnswerverifiedShow Answer

When examining a mutant mouse,you notice that its skeletal muscle looks very uniform,lacking in striations.To figure out what the mutation is in this mouse,you would begin by looking at

Correct AnswerverifiedShow Answer

During development,bone becomes progressively more calcified and hardened.

Correct AnswerverifiedShow Answer

An area where two bones meet is called a

Correct AnswerverifiedShow Answer

A motor unit is

Correct AnswerverifiedShow Answer

Which is the neurotransmitter used by motor neurons to communicate with muscle cells?

Correct AnswerverifiedShow Answer

You are looking at sonograms and are observing fetal bones.Compared to a much earlier sonogram,you can see that this stage of development shows

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Ligaments are connective tissues that connect _ to _.

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified