Question 1

The rounded part of a neuron containing the nucleus and mitochondria is the

Accepted Answer

A) myelin sheath. 
B) axon. 
C) synapse. 
D) dendrite. 
E) cell body. 
A) myelin sheath. 
B) axon. 
C) synapse. 
D) dendrite. 
E) cell body.

Question 2

Grasshopper mice have fewer action potentials when bitten by scorpions.

Accepted Answer

A) True 
 B)False

Question 3

When you look at the water,which is being activated?

Accepted Answer

A) thermoreceptor 
B) pain receptor 
C) photoreceptor 
D) mechanoreceptor 
E) chemoreceptor 
A) thermoreceptor 
B) pain receptor 
C) photoreceptor 
D) mechanoreceptor 
E) chemoreceptor

Question 4

The size of the opening for light coming into the eye is regulated by

Accepted Answer

A) corneA. 
B) pupil. 
C) iris. 
D) cone. 
E) lens. 
A) corneA. 
B) pupil. 
C) iris. 
D) cone. 
E) lens.

Question 5

Working with a patient with eye problems,you discover that the patient cannot focus images.You suspect that there may be a defect in the

Accepted Answer

A) lens. 
B) cone. 
C) pupil. 
D) retina. 
E) iris. 
A) lens. 
B) cone. 
C) pupil. 
D) retina. 
E) iris.

Question 6

Amyotrophic lateral sclerosis,or Lou Gehrig disease,causes muscle weakness and atrophy due to a decrease in stimulation by which types of neurons?

Accepted Answer

A) motor neurons 
B) sensory neurons 
C) interneurons 
D) motor and sensory neurons 
E) sensory and interneurons 
A) motor neurons 
B) sensory neurons 
C) interneurons 
D) motor and sensory neurons 
E) sensory and interneurons

Question 7

Acetylcholine is what?

Accepted Answer

A) an enzyme 
B) a neurotransmitter 
C) a voltage gated ion channel 
D) a receptor 
E) a source of fuel for neurons 
A) an enzyme 
B) a neurotransmitter 
C) a voltage gated ion channel 
D) a receptor 
E) a source of fuel for neurons

Question 8

Which is not controlled by the nervous system?

Accepted Answer

A) breathing 
B) heartbeat 
C) removing your hand from a hot surface 
D) removing your hand from a cold surface 
E) diffusion of water into cells 
A) breathing 
B) heartbeat 
C) removing your hand from a hot surface 
D) removing your hand from a cold surface 
E) diffusion of water into cells

Question 9

The condition that develops when dopamine levels in the brain are deficient is

Accepted Answer

A) epilepsy. 
B) insomnia. 
C) Alzheimer disease. 
D) Huntington disease. 
E) Parkinson diseasE. 
A) epilepsy. 
B) insomnia. 
C) Alzheimer disease. 
D) Huntington disease. 
E) Parkinson diseasE.

Question 10

A neuron recharges when

Accepted Answer

A) Na+ ions are actively pumped against their concentration gradient. 
B) Na+ ions spontaneously move down their concentration gradient. 
C) Na+ ions spontaneously move against their concentration gradient. 
D) Na+ ions are actively pumped down their concentration gradient. 
A) Na+ ions are actively pumped against their concentration gradient. 
B) Na+ ions spontaneously move down their concentration gradient. 
C) Na+ ions spontaneously move against their concentration gradient. 
D) Na+ ions are actively pumped down their concentration gradient.

Question 11

If you were using electrodes and chemical tests to find a resting neuron,you would look for a neuron in which

Accepted Answer

A) active transport is not occurring. 
B) sodium ions are more concentrated inside the cell than outside. 
C) very little metabolism is taking place. 
D) the inside of a neuron is positively charged as compared to the outside. 
E) potassium ions are more concentrated inside the cell than outsidE. 
A) active transport is not occurring. 
B) sodium ions are more concentrated inside the cell than outside. 
C) very little metabolism is taking place. 
D) the inside of a neuron is positively charged as compared to the outside. 
E) potassium ions are more concentrated inside the cell than outsidE.

Question 12

In conductive deafness,the middle ear fails to move sound to the inner ear.By amplifying sounds in the auditory canal,the hearing aid moves the _______ more than normal,helping the person hear more clearly.

Accepted Answer

A) cochlea 
B) eardrum 
C) oval window 
D) auditory canal 
E) auditory nerve 
A) cochlea 
B) eardrum 
C) oval window 
D) auditory canal 
E) auditory nerve

Question 13

The division of the peripheral nervous system that carries signals to voluntary muscles is the

Accepted Answer

A) somatic system. 
B) autonomic system. 
C) sympathetic system. 
D) parasympathetic system. 
E) No answer is correct. 
A) somatic system. 
B) autonomic system. 
C) sympathetic system. 
D) parasympathetic system. 
E) No answer is correct.

Question 14

The three major roles of the human nervous system are

Accepted Answer

A) sensory integration,glandular response,and motor response. 
B) seeing,feeling,and hearing. 
C) sensory input,sensory integration,and motor response. 
D) smooth muscle response,cardiac muscle response,and skeletal muscle response. 
E) No answer is correct. 
A) sensory integration,glandular response,and motor response. 
B) seeing,feeling,and hearing. 
C) sensory input,sensory integration,and motor response. 
D) smooth muscle response,cardiac muscle response,and skeletal muscle response. 
E) No answer is correct.

Question 15

A motor neuron's __________ and ___________ reside in the central nervous system,but its ____________ extend(s)into the peripheral nervous system.

Accepted Answer

A) cell body,dendrites,axon 
B) dendrites,cell body,axon 
C) dendrites,axon,cell body 
D) axon,cell body,dendrites 
E) No answer is correct. 
A) cell body,dendrites,axon 
B) dendrites,cell body,axon 
C) dendrites,axon,cell body 
D) axon,cell body,dendrites 
E) No answer is correct.

Question 16

The part of the central nervous system that conducts information to and from the brain is the

Accepted Answer

A) motor neuron. 
B) spinal cord. 
C) sensory neuron. 
D) brainstem. 
E) medulla oblongata. 
A) motor neuron. 
B) spinal cord. 
C) sensory neuron. 
D) brainstem. 
E) medulla oblongata.

Exam 24: The Nervous System and the Senses

The rounded part of a neuron containing the nucleus and mitochondria is the

Grasshopper mice have fewer action potentials when bitten by scorpions.

When you look at the water,which is being activated?

The size of the opening for light coming into the eye is regulated by

Working with a patient with eye problems,you discover that the patient cannot focus images.You suspect that there may be a defect in the

Amyotrophic lateral sclerosis,or Lou Gehrig disease,causes muscle weakness and atrophy due to a decrease in stimulation by which types of neurons?

Acetylcholine is what?

Which is not controlled by the nervous system?

The condition that develops when dopamine levels in the brain are deficient is

A neuron recharges when

If you were using electrodes and chemical tests to find a resting neuron,you would look for a neuron in which

In conductive deafness,the middle ear fails to move sound to the inner ear.By amplifying sounds in the auditory canal,the hearing aid moves the _______ more than normal,helping the person hear more clearly.

The division of the peripheral nervous system that carries signals to voluntary muscles is the

The three major roles of the human nervous system are

A motor neuron's __________ and ___________ reside in the central nervous system,but its ____________ extend(s)into the peripheral nervous system.

The part of the central nervous system that conducts information to and from the brain is the

Scientific Study of Life

The Chemistry of Life

Cells

The Energy of Life

Photosynthesis

How Cells Release Energy

Dna Structure and Gene Function

DNA Replication, binary Fission, and Mitosis

Sexual Reproduction and Meiosis

Patterns of Inheritance

Dna Technology

Forces of Evolutionary Change

Evidence of Evolution

Speciation and Extinction

Evolution and Diversity of Microbial Life

Evolution and Diversity of Plants

Evolution and Diversity of Animals

Populations

Communities and Ecosystems

Preserving Biodiversity

Plant Form and Function

Reproduction and Development of Flowering Plants

Animal Tissues and Organ Systems

The Endocrine System

The Skeletal and Muscular Systems

The Circulatory and Respiratorysystems

The Digestive and Urinary Systems

The Immune System

Animal Reproduction and Development

Filters

A motor neuron's ____ and _ reside in the central nervous system,but its ________ extend(s)into the peripheral nervous system.