Question 1

Which is true of olfactory cells and taste buds?

Accepted Answer

A) Olfactory cells contain all of the possible olfactory receptors while taste buds can sense all of the primary tastes. 
B) Olfactory cells express a single olfactory receptor while taste buds can sense only one of the primary tastes. 
C) Olfactory cells express a single olfactory receptor while taste buds can sense 50 to 150 tastes. 
D) Olfactory cells contain all of the possible olfactory receptors while taste buds can sense only one of the primary tastes.

Question 2

When you smell the cookies,which is being activated?

Accepted Answer

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

Question 3

The opening for light to enter into the eye is the

Accepted Answer

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

Question 4

During an action potential,sodium ions enter into the cell.

Accepted Answer

A) True 
 B)False

Question 5

At the snail-shaped _______________,sound is transduced into nerve impulses.

Accepted Answer

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

Question 6

The condition that develops when there is excess GABA leading to excess dopamine and norepinephrine in the brain is

Accepted Answer

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

Question 7

Why would this lead to paralysis and death?

Accepted Answer

A) Neurons run out of energy. 
B) Neurons swell because of increased osmosis. 
C) Neurons can't recharge. 
D) Neurons can't fire without a voltage change. 
E) Neurons cannot release neurotransmitters.

Question 8

If you were asked to point to the place on a model of the brain where muscular movements are coordinated,you would point to the

Accepted Answer

A) cerebellum. 
B) hypothalamus. 
C) medulla oblongata. 
D) pons. 
E) cerebrum.

Question 9

Dopamine is an inhibitory neurotransmitter released into neuromuscular synapses.Patients with schizophrenia have increased dopamine.Which symptoms would be expected in a patient with schizophrenia?

Accepted Answer

A) slowed voluntary movements 
B) slowed senses 
C) hyperactive voluntary movements 
D) decreased mental ability and memory loss 
E) excessive sleeping

Question 10

While in the treatment room at your eye doctor,you bump a model of the eye and a sheet-like part falls out into your hand.When you replace it,you have put back the

Accepted Answer

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

Question 11

The nerve that conducts impulses to the area of the brain that determines sound is the

Accepted Answer

A) olfactory nerve. 
B) auditory nerve. 
C) optic nerve. 
D) retinal nerve. 
E) pons.

Question 12

An action potential is not generated by pain mechanoreceptors of the general senses when

Accepted Answer

A) you taste a sour lemon. 
B) a paper cut occurs on your finger. 
C) a bee stings you. 
D) you remove frozen foods from the freezer. 
E) you put on a shirt.

Question 13

The diagram shows a(n)______ in action.

Accepted Answer

A) muscle 
B) synapse 
C) voluntary movement 
D) involuntary movement 
E) reflex

Question 14

If asked to point to the place on a model of the brain where essential functions such as breathing,blood pressure,and heart rate are regulated,you would point to

Accepted Answer

A) cerebellum. 
B) hypothalamus. 
C) medulla oblongata. 
D) pons. 
E) cerebrum.

Question 15

The type of neuron that brings information toward the central nervous system is the

Accepted Answer

A) synaptic neuron. 
B) interneuron. 
C) motor neuron. 
D) sensory neuron. 
E) neuroglia.

Question 16

Which is not one of the general senses?

Accepted Answer

A) touch 
B) temperature 
C) pain 
D) vision 
E) position

Question 17

"Threshold potential" is is a synonym for "action potential."

Accepted Answer

A) True 
 B)False

Question 18

The three types of neurons in the nervous system of humans are

Accepted Answer

A) interneurons,synaptic neurons,and neurogliA. 
B) synaptic neurons,motor neurons,and neuroglia. 
C) sensory neurons,interneurons,and motor neurons. 
D) interneurons,sensory neurons,and neuroglia. 
E) synaptic neurons,motor neurons,and sensory neurons.

Question 19

Toxins produced by scorpions cause sodium ion channels to become stuck open.These toxins cause pain by

Accepted Answer

A) depolarizing motor neurons. 
B) polarizing sensory neurons. 
C) polarizing motor neurons. 
D) polarizing interneurons. 
E) depolarizing sensory neurons.

Question 20

The layered membranes that jacket the central nervous system are the

Accepted Answer

A) grey matter. 
B) meninges. 
C) white matter. 
D) epidermis. 
E) myelin sheaths.

Exam 24: The Nervous System and the Senses

Which is true of olfactory cells and taste buds?

When you smell the cookies,which is being activated?

The opening for light to enter into the eye is the

During an action potential,sodium ions enter into the cell.

At the snail-shaped _______________,sound is transduced into nerve impulses.

The condition that develops when there is excess GABA leading to excess dopamine and norepinephrine in the brain is

Why would this lead to paralysis and death?

If you were asked to point to the place on a model of the brain where muscular movements are coordinated,you would point to the

Dopamine is an inhibitory neurotransmitter released into neuromuscular synapses.Patients with schizophrenia have increased dopamine.Which symptoms would be expected in a patient with schizophrenia?

While in the treatment room at your eye doctor,you bump a model of the eye and a sheet-like part falls out into your hand.When you replace it,you have put back the

The nerve that conducts impulses to the area of the brain that determines sound is the

An action potential is not generated by pain mechanoreceptors of the general senses when

The diagram shows a(n) ______ in action.

If asked to point to the place on a model of the brain where essential functions such as breathing,blood pressure,and heart rate are regulated,you would point to

The type of neuron that brings information toward the central nervous system is the

Which is not one of the general senses?

"Threshold potential" is is a synonym for "action potential."

The three types of neurons in the nervous system of humans are

Toxins produced by scorpions cause sodium ion channels to become stuck open.These toxins cause pain by

The layered membranes that jacket the central nervous system are the