Question 1

Gaps in the myelin sheath are termed

Accepted Answer

A)   nodes of Ranvier.
B)   interaxons.
C)   ganglia.
D)   nuclei.
E)   synapses.F) A) and E)
G) B) and E)

Question 2

_________ inhibits osteoclasts,and __________ stimulates them.

Accepted Answer

A)   Parathyroid hormone (PTH) ; calcitonin
B)   Growth hormone (GH) ; calcitonin
C)   Epinephrine; norepinephrine
D)   Calcitonin; parathyroid hormone (PTH) 
E)   Glucagon; growth hormone (GH) F) C) and D)
G) A) and D)

Question 3

If you do not obtain enough iodine in your diet,you will likely develop

Accepted Answer

A)   pituitary gigantism.
B)   simple goiter.
C)   exopthalmos.
D)   diabetes mellitus.
E)   tetany.F) C) and D)
G) A) and B)

Question 4

Which two hormones are produced by the adrenal medulla?

Accepted Answer

A)   aldosterone and cortisol
B)   acetylcholine and norepinephrine
C)   luteinizing hormone and follicle-stimulating hormone
D)   antidiuretic hormone and oxytocin
E)   epinephrine and norepinephrineF) None of the above
G) D) and E)

Question 5

Which action is not part of how drugs can affect the nervous system?

Accepted Answer

A)   All of these actions are part of how drugs can affect the nervous system.
B)   Drugs can enhance the release of a neurotransmitter.
C)   Drugs can block the release of a neurotransmitter.
D)   Drugs can block the receptor for a neurotransmitter.
E)   Drugs can mimic the actions of a neurotransmitter.F) B) and E)
G) D) and E)

Question 6

People who are under constant stress have a tendency to gain weight,especially in the midsection,even if they do not overeat.This is because the hypothalamus responds to the stress by stimulating the

Accepted Answer

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

Question 7

Degenerating neurons surrounded by clusters of abnormal tissue,especially in the hippocampus and amygdala,accompanied by progressive memory loss,is typical of

Accepted Answer

A)   Alzheimer disease.
B)   Parkinson disease.
C)   Graves disease.
D)   Addison disease.
E)   Cushing syndrome.F) A) and D)
G) D) and E)

Question 8

Which of these represents the flow of information in a spinal reflex arc in the correct order?

Accepted Answer

A)   spinal nerve →\rarr→ sensory neuron →\rarr→ spinal cord →\rarr→ interneuron →\rarr→ effector →\rarr→ spinal nerve →\rarr→ motor neuron
B)   motor neuron →\rarr→ spinal nerve →\rarr→ spinal cord →\rarr→ interneuron →\rarr→ sensory neuron →\rarr→ spinal nerve →\rarr→ effector
C)   sensory neuron →\rarr→ spinal nerve →\rarr→ interneuron →\rarr→ motor neuron →\rarr→ spinal cord →\rarr→ spinal nerve →\rarr→ effector
D)   sensory neuron →\rarr→ spinal nerve →\rarr→ spinal cord →\rarr→ interneuron →\rarr→ motor neuron →\rarr→ spinal nerve →\rarr→ effector
E)   spinal nerve →\rarr→ motor neuron →\rarr→ spinal cord →\rarr→ interneuron →\rarr→ effector →\rarr→ sensory neuron →\rarr→ spinal nerve F) B) and C)
G) A) and E)

Question 9

Weight gain,diabetes mellitus,and a moon-shaped face indicate

Accepted Answer

A)   Addison disease.
B)   Graves disease.
C)   simple goiter.
D)   pituitary dwarfism.
E)   Cushing syndrome.F) B) and E)
G) All of the above

Question 10

A patient's pons has been affected by a rapidly growing tumor.Of the choices listed below,which is the most likely result?

Accepted Answer

A)   loss of the normal breathing rhythm
B)   hearing loss
C)   inability to understand speech
D)   inability to regulate blood pressure
E)   inability to experience emotionsF) A) and E)
G) D) and E)

Question 11

Which of these structures is the pons?

Accepted Answer

A)   A
B)   B
C)   C
D)   D
E)   EF) B) and E)
G) D) and E)

Question 12

If an individual's pancreatic islets have been destroyed,the result will be

Accepted Answer

A)   Cushing syndrome.
B)   Graves disease.
C)   type 2 diabetes mellitus.
D)   Addison disease.
E)   type 1 diabetes mellitus.F) B) and E)
G) D) and E)

Question 13

A patient who has recently undergone surgery to remove tumors from his thyroid gland suddenly begins to tremble violently from head to toe because his nerves have become too excitable.Why?

Accepted Answer

A)   Too much thyroid tissue was removed, and without oxytocin, blood calcium levels fell too low.
B)   The parathyroid glands were removed, and without parathyroid hormone (PTH) , blood calcium levels rose too high.
C)   The parathyroid glands were removed, and without parathyroid hormone (PTH) , blood calcium levels fell too low.
D)   Too much thyroid tissue was removed, and without calcitonin, blood calcium levels fell too low.
E)   The hypothalamus was removed, and without its releasing hormones, blood calcium levels fell too low.F) B) and E)
G) B) and D)

Question 14

Which part of a neuron could be covered with a myelin sheath?

Accepted Answer

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

Exam 27: The Control Systems

If an individual's pancreatic islets have been destroyed,the result will be

Correct Answer
verified

Which of these structures is the pons?

Correct Answer
verified

If you do not obtain enough iodine in your diet,you will likely develop

Correct Answer
verified

Weight gain,diabetes mellitus,and a moon-shaped face indicate

Correct Answer
verified

Which action is not part of how drugs can affect the nervous system?

Correct Answer
verified

Degenerating neurons surrounded by clusters of abnormal tissue,especially in the hippocampus and amygdala,accompanied by progressive memory loss,is typical of

Correct Answer
verified

A patient's pons has been affected by a rapidly growing tumor.Of the choices listed below,which is the most likely result?

Correct Answer
verified

Which part of a neuron could be covered with a myelin sheath?

Correct Answer
verified

Which of these represents the flow of information in a spinal reflex arc in the correct order?

Correct Answer
verified

_ inhibits osteoclasts,and __ stimulates them.

Correct Answer
verified

Which two hormones are produced by the adrenal medulla?

Correct Answer
verified

A patient who has recently undergone surgery to remove tumors from his thyroid gland suddenly begins to tremble violently from head to toe because his nerves have become too excitable.Why?

Correct Answer
verified

People who are under constant stress have a tendency to gain weight,especially in the midsection,even if they do not overeat.This is because the hypothalamus responds to the stress by stimulating the

Correct Answer
verified

Gaps in the myelin sheath are termed

Correct Answer
verified

Exam 27: The Control Systems

If an individual's pancreatic islets have been destroyed,the result will be

Correct AnswerverifiedShow Answer

Which of these structures is the pons?

Correct AnswerverifiedShow Answer

If you do not obtain enough iodine in your diet,you will likely develop

Correct AnswerverifiedShow Answer

Weight gain,diabetes mellitus,and a moon-shaped face indicate

Correct AnswerverifiedShow Answer

Which action is not part of how drugs can affect the nervous system?

Correct AnswerverifiedShow Answer

Degenerating neurons surrounded by clusters of abnormal tissue,especially in the hippocampus and amygdala,accompanied by progressive memory loss,is typical of

Correct AnswerverifiedShow Answer

A patient's pons has been affected by a rapidly growing tumor.Of the choices listed below,which is the most likely result?

Correct AnswerverifiedShow Answer

Which part of a neuron could be covered with a myelin sheath?

Correct AnswerverifiedShow Answer

Which of these represents the flow of information in a spinal reflex arc in the correct order?

Correct AnswerverifiedShow Answer

_________ inhibits osteoclasts,and __________ stimulates them.

Correct AnswerverifiedShow Answer

Which two hormones are produced by the adrenal medulla?

Correct AnswerverifiedShow Answer

A patient who has recently undergone surgery to remove tumors from his thyroid gland suddenly begins to tremble violently from head to toe because his nerves have become too excitable.Why?

Correct AnswerverifiedShow Answer

People who are under constant stress have a tendency to gain weight,especially in the midsection,even if they do not overeat.This is because the hypothalamus responds to the stress by stimulating the

Correct AnswerverifiedShow Answer

Gaps in the myelin sheath are termed

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

_ inhibits osteoclasts,and __ stimulates them.

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified