Question 1

Which of the following is part of both the nervous and endocrine systems,and is crucial to maintenance of homeostasis?

Accepted Answer

A)   adrenal medulla
B)   thyroid gland
C)   hypothalamus
D)   thalamus
E)   medulla oblongataF) C) and E)
G) B) and E)

Question 2

Which of these is a second messenger?

Accepted Answer

A)   cAMP
B)   ATP
C)   a peptide hormone
D)   a steroid hormone
E)   DNAF) B) and D)
G) B) and E)

Question 3

The __________ conveys sensory information to the CNS and motor commands away from the CNS to skeletal muscles.

Accepted Answer

A)   parasympathetic division
B)   autonomic nervous system
C)   somatic system
D)   sympathetic division
E)   brain stemF) A) and E)
G) A) and B)

Question 4

_________ lowers blood glucose,and _________ raises it.

Accepted Answer

A)   Insulin; glucagon
B)   Epinephrine; norepinephrine
C)   Cortisol; insulin
D)   Thyroxine; glucagon
E)   Glucagon; insulinF) C) and D)
G) B) and E)

Question 5

Which of these is mismatched?

Accepted Answer

A)   diencephalon - thalamus
B)   brain stem - medulla oblongata
C)   cerebral cortex - occipital lobe
D)   cerebellum - midbrain
E)   frontal lobe - prefrontal areaF) C) and D)
G) A) and C)

Question 6

Dendrites

Accepted Answer

A)   are usually the longest nerve fibers.
B)   are covered with a myelin sheath.
C)   receive signals from sensory receptors or other neurons.
D)   generate nerve impulses.
E)   are longer and less numerous than axons.F) A) and C)
G) B) and C)

Question 7

Transmission across the synaptic cleft is accomplished by chemical signals called

Accepted Answer

A)   hormones.
B)   exocrine secretions.
C)   enzymes.
D)   stimulants.
E)   neurotransmitters.F) D) and E)
G) C) and D)

Question 8

Which of these does not belong to the limbic system?

Accepted Answer

A)   thalamus
B)   amygdala
C)   hypothalamus
D)   hippocampus
E)   cerebellumF) C) and D)
G) A) and D)

Question 9

There is a hormone that helps to maintain your blood glucose level between breakfast and lunch.What is it?

Accepted Answer

A)   insulin
B)   glucagon
C)   parathyroid hormone (PTH) 
D)   thyroxine
E)   epinephrineF) B) and D)
G) D) and E)

Question 10

The arrow shows the direction of the nerve impulse in a neuron.Part X would represent a(n)

Accepted Answer

A)   axon.
B)   dendrite.
C)   cell body.
D)   myelin sheath.
E)   axon terminal.F) A) and C)
G) C) and D)

Question 11

Gigantism can result from excessive secretion from the

Accepted Answer

A)   posterior pituitary.
B)   anterior pituitary.
C)   adrenal medulla.
D)   adrenal cortex.
E)   pancreas.F) C) and E)
G) A) and B)

Question 12

Which of these lists the events of an action potential in the correct order?

Accepted Answer

A)   Na+ gates open →\rarr→ inside of axon becomes positive →\rarr→ Na+ gates close →\rarr→ K+ gates open →\rarr→ inside of axon becomes negative
B)   K+ gates open →\rarr→ inside of axon becomes positive →\rarr→ K+ gates close →\rarr→ Na+ gates open →\rarr→ inside of axon becomes negative
C)   K+ gates open →\rarr→ inside of axon becomes negative →\rarr→ K+ gates close →\rarr→ Na+ gates open →\rarr→ inside of axon becomes positive
D)   Na+ gates open →\rarr→ inside of axon becomes negative →\rarr→ Na+ gates close →\rarr→ K+ gates open →\rarr→ inside of axon becomes positive
E)   Na+ gates open →\rarr→ inside of axon becomes positive →\rarr→ K+ gates close →\rarr→ Na+ gates open →\rarr→ inside of axon becomes negative F) C) and D)
G) C) and E)

Question 13

You are relaxing,having a snack and watching TV,when suddenly the entire house begins to shake violently.The activity of your _____ quickly decreases,while that of your _____ increases.

Accepted Answer

A)   somatic nervous system; autonomic nervous system
B)   autonomic nervous system; somatic nervous system
C)   sympathetic division; parasympathetic division
D)   sympathetic division; somatic nervous system
E)   parasympathetic division; sympathetic divisionF) All of the above
G) B) and E)

Question 14

The exophthalmos seen in Graves disease results from hypersecretion of the

Accepted Answer

A)   thyroid gland.
B)   parathyroid glands.
C)   posterior pituitary.
D)   adrenal cortex.
E)   pancreas.F) B) and E)
G) C) and E)

Question 15

When the sympathetic division of the autonomic nervous system is activated,its effects can be prolonged by secretions of the

Accepted Answer

A)   adrenal cortex.
B)   thyroid gland.
C)   parathyroid glands.
D)   adrenal medulla.
E)   posterior pituitary.F) A) and D)
G) All of the above

Question 16

If you eat a jelly donut,your pancreatic islets will respond by secreting

Accepted Answer

A)   growth hormone.
B)   glucagon.
C)   epinephrine.
D)   insulin.
E)   oxytocin.F) C) and E)
G) D) and E)

Question 17

Which ion needs to be pumped to the exterior of the axon in order to generate a nerve impulse?

Accepted Answer

A)   Na+
B)   K+
C)   Ca+
D)   H+
E)   Cl-F) None of the above
G) C) and D)

Question 18

Which type of neuron is completely contained within the CNS?

Accepted Answer

A)   sensory neuron
B)   motor neuron
C)   autonomic neuron
D)   interneuron
E)   sympathetic neuronF) A) and B)
G) A) and E)

Question 19

A spinal nerve contains

Accepted Answer

A)   axons of sensory neurons only.
B)   myelinated axons only.
C)   axons of motor neurons only.
D)   dendrites only.
E)   both sensory and motor axons.F) A) and E)
G) A) and D)

Question 20

Which of these is not part of a neuron?

Accepted Answer

A)   dendrite
B)   nucleus
C)   cell body
D)   axon
E)   synapseF) A) and D)
G) A) and B)

Exam 27: The Control Systems

The exophthalmos seen in Graves disease results from hypersecretion of the

Correct AnswerverifiedShow Answer

The __________ conveys sensory information to the CNS and motor commands away from the CNS to skeletal muscles.

Correct AnswerverifiedShow Answer

Which ion needs to be pumped to the exterior of the axon in order to generate a nerve impulse?

Correct AnswerverifiedShow Answer

Transmission across the synaptic cleft is accomplished by chemical signals called

Correct AnswerverifiedShow Answer

The arrow shows the direction of the nerve impulse in a neuron.Part X would represent a(n)

Correct AnswerverifiedShow Answer

Which of these is a second messenger?

Correct AnswerverifiedShow Answer

Which of these does not belong to the limbic system?

Correct AnswerverifiedShow Answer

Gigantism can result from excessive secretion from the

Correct AnswerverifiedShow Answer

Which type of neuron is completely contained within the CNS?

Correct AnswerverifiedShow Answer

You are relaxing,having a snack and watching TV,when suddenly the entire house begins to shake violently.The activity of your _____ quickly decreases,while that of your _____ increases.

Correct AnswerverifiedShow Answer

Which of the following is part of both the nervous and endocrine systems,and is crucial to maintenance of homeostasis?

Correct AnswerverifiedShow Answer

Which of these is mismatched?

Correct AnswerverifiedShow Answer

A spinal nerve contains

Correct AnswerverifiedShow Answer

Which of these lists the events of an action potential in the correct order?

Correct AnswerverifiedShow Answer

When the sympathetic division of the autonomic nervous system is activated,its effects can be prolonged by secretions of the

Correct AnswerverifiedShow Answer

If you eat a jelly donut,your pancreatic islets will respond by secreting

Correct AnswerverifiedShow Answer

Which of these is not part of a neuron?

Correct AnswerverifiedShow Answer

There is a hormone that helps to maintain your blood glucose level between breakfast and lunch.What is it?

Correct AnswerverifiedShow Answer

Dendrites

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_________ lowers blood glucose,and _________ raises it.

Correct AnswerverifiedShow Answer

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You are relaxing,having a snack and watching TV,when suddenly the entire house begins to shake violently.The activity of your _ quickly decreases,while that of your _ increases.

Correct Answer
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_ lowers blood glucose,and _ raises it.

Correct Answer
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