Question 1

The __________ is an especially important center of autonomic control.

Accepted Answer

A) pons 
B) medulla oblongata 
C) hypothalamus 
D) midbrain 
E) pituitary gland 
A) pons 
B) medulla oblongata 
C) hypothalamus 
D) midbrain 
E) pituitary gland C

Question 2

Which one of the following is made up of primarily adrenergic fibers?

Accepted Answer

A) Preganglionic neurons of the sympathetic division 
B) Postganglionic neurons of the sympathetic division 
C) Postganglionic neurons of the parasympathetic division 
D) All motor fibers of the somatic motor system 
E) Preganglionic neurons of parasympathetic division 
A) Preganglionic neurons of the sympathetic division 
B) Postganglionic neurons of the sympathetic division 
C) Postganglionic neurons of the parasympathetic division 
D) All motor fibers of the somatic motor system 
E) Preganglionic neurons of parasympathetic division B

Question 3

Which of the following is not a characteristic of the enteric nervous system?

Accepted Answer

A) Its reflex arcs are associated with the spinal cord. 
B) It does not arise from the spinal cord. 
C) It innervates smooth muscle. 
D) It innervates glands. 
E) It does not arise from the brainstem. 
A) Its reflex arcs are associated with the spinal cord. 
B) It does not arise from the spinal cord. 
C) It innervates smooth muscle. 
D) It innervates glands. 
E) It does not arise from the brainstem. A

Question 4

A possible explanation for the effect of caffeine is that it blocks the receptor for a neuromodulator in the brain called __________,which inhibits ACh release by cholinergic neurons.

Accepted Answer

A) glycine 
B) dopamine 
C) serotonin 
D) melatonin 
E) adenosine 
A) glycine 
B) dopamine 
C) serotonin 
D) melatonin 
E) adenosine

Question 5

Autonomic function receives input from all these except __________.

Accepted Answer

A) spinal cord 
B) cerebral cortex 
C) hypothalamus 
D) medulla oblongata 
E) somatic branch of the peripheral nervous system 
A) spinal cord 
B) cerebral cortex 
C) hypothalamus 
D) medulla oblongata 
E) somatic branch of the peripheral nervous system

Question 6

Atropine is sometimes used to dilate the pupil for an eye examination.Which receptor would atropine block?

Accepted Answer

A) Alpha 1 adrenergic receptor 
B) Nicotinic receptor 
C) Muscarinic receptor 
D) Alpha 2 adrenergic receptor 
E) Beta receptor 
A) Alpha 1 adrenergic receptor 
B) Nicotinic receptor 
C) Muscarinic receptor 
D) Alpha 2 adrenergic receptor 
E) Beta receptor

Question 7

Which of the following structures releases neurotransmitter in a paravertebral ganglion?

Accepted Answer

A) Preganglionic sympathetic fiber 
B) Postganglionic sympathetic fiber 
C) Somatic motor fiber 
D) Preganglionic parasympathetic fiber 
E) Postganglionic parasympathetic fiber 
A) Preganglionic sympathetic fiber 
B) Postganglionic sympathetic fiber 
C) Somatic motor fiber 
D) Preganglionic parasympathetic fiber 
E) Postganglionic parasympathetic fiber

Question 8

Which of the following is not under dual control of the ANS?

Accepted Answer

A) Pupil diameter 
B) Heart rate 
C) Salivary gland activity 
D) Adrenal medulla activity 
E) Gastrointestinal motility 
A) Pupil diameter 
B) Heart rate 
C) Salivary gland activity 
D) Adrenal medulla activity 
E) Gastrointestinal motility

Question 9

Which of the following structures is not associated with the autonomic nervous system?

Accepted Answer

A) Preganglionic neuron 
B) Postganglionic neuron 
C) Splanchnic nerve 
D) Oculomotor nerve 
E) Facial nerve 
A) Preganglionic neuron 
B) Postganglionic neuron 
C) Splanchnic nerve 
D) Oculomotor nerve 
E) Facial nerve

Question 10

__________ is an example of the cooperative effect between the two autonomic nervous system divisions.

Accepted Answer

A) Orgasm 
B) Bronchodilation 
C) Gastrointestinal secretion 
D) Heart rate 
E) Vasomotor tone 
A) Orgasm 
B) Bronchodilation 
C) Gastrointestinal secretion 
D) Heart rate 
E) Vasomotor tone

Question 11

Propranolol,a beta-blocker,is typically used to __________.

Accepted Answer

A) increase heart rate 
B) decrease heart rate 
C) produce vasoconstriction of the coronary arteries 
D) produce vasodilation of blood vessels of skeletal muscle 
E) produce bronchodilation 
A) increase heart rate 
B) decrease heart rate 
C) produce vasoconstriction of the coronary arteries 
D) produce vasodilation of blood vessels of skeletal muscle 
E) produce bronchodilation

Question 12

Which of the following is more effective in producing bronchodilation?

Accepted Answer

A) Acetylcholine 
B) Nicotine 
C) Muscarine 
D) Norepinephrine 
E) Thyroxine 
A) Acetylcholine 
B) Nicotine 
C) Muscarine 
D) Norepinephrine 
E) Thyroxine

Question 13

Under normal circumstances,both divisions of the autonomic nervous system are active simultaneously.

Accepted Answer

A) True 
 B)False

Question 14

Most fibers of the parasympathetic nervous system travel in the __________.

Accepted Answer

A) vagus 
B) trigeminal 
C) splanchnic 
D) facial 
E) sciatic 
A) vagus 
B) trigeminal 
C) splanchnic 
D) facial 
E) sciatic

Question 15

Which of the following statements is true regarding parasympathetic tone?

Accepted Answer

A) It holds the resting heart rate below its intrinsic rate. 
B) It accelerates the resting heart rate above its intrinsic rate. 
C) It might increase or decrease heart rate depending on the situation. 
D) It affects heart rate only after myocardial infarction. 
E) It does not affect heart rate. 
A) It holds the resting heart rate below its intrinsic rate. 
B) It accelerates the resting heart rate above its intrinsic rate. 
C) It might increase or decrease heart rate depending on the situation. 
D) It affects heart rate only after myocardial infarction. 
E) It does not affect heart rate.

Question 16

White rami carry _________ neurons,while gray rami carry _________ neurons.

Accepted Answer

A) myelinated postganglionic; unmyelinated preganglionic 
B) unmyelinated postganglionic; myelinated preganglionic 
C) myelinated preganglionic; unmyelinated postganglionic 
D) unmyelinated preganglionic; myelinated postganglionic 
E) myelinated preganglionic; myelinated postganglionic 
A) myelinated postganglionic; unmyelinated preganglionic 
B) unmyelinated postganglionic; myelinated preganglionic 
C) myelinated preganglionic; unmyelinated postganglionic 
D) unmyelinated preganglionic; myelinated postganglionic 
E) myelinated preganglionic; myelinated postganglionic

Question 17

The enzyme that breaks down norepinephrine (NE)is called __________.

Accepted Answer

A) noradrenalinase 
B) adenosine 
C) monoamine oxidase (MAO) 
D) norepinephrinase 
E) catchol-O-methyltrasferase (COMT) 
A) noradrenalinase 
B) adenosine 
C) monoamine oxidase (MAO) 
D) norepinephrinase 
E) catchol-O-methyltrasferase (COMT)

Question 18

The adrenal medulla is a modified sympathetic ganglion.

Accepted Answer

A) True 
 B)False

Question 19

The binding of __________ to a nicotinic receptor of a muscle fiber will __________ it.

Accepted Answer

A) acetylcholine; excite 
B) norepinephrine; excite 
C) monoamine oxidase; inhibit 
D) acetylcholine; inhibit 
E) acetylcholinesterase; excite 
A) acetylcholine; excite 
B) norepinephrine; excite 
C) monoamine oxidase; inhibit 
D) acetylcholine; inhibit 
E) acetylcholinesterase; excite

Question 20

In response to high blood pressure,stretch receptors called __________ in the walls of arteries carrying blood to the head,will trigger a reflex that causes the heart to __________ its beats per minute.

Accepted Answer

A) baroreceptors; decrease 
B) proprioceptors; decrease 
C) baroreceptors; increase 
D) proprioceptors; increase 
E) chemoreceptors; increase 
A) baroreceptors; decrease 
B) proprioceptors; decrease 
C) baroreceptors; increase 
D) proprioceptors; increase 
E) chemoreceptors; increase

Exam 15: The Autonomic Nervous System and Visceral Reflexes

The __________ is an especially important center of autonomic control.

Which one of the following is made up of primarily adrenergic fibers?

Which of the following is not a characteristic of the enteric nervous system?

A possible explanation for the effect of caffeine is that it blocks the receptor for a neuromodulator in the brain called __________,which inhibits ACh release by cholinergic neurons.

Autonomic function receives input from all these except __________.

Atropine is sometimes used to dilate the pupil for an eye examination.Which receptor would atropine block?

Which of the following structures releases neurotransmitter in a paravertebral ganglion?

Which of the following is not under dual control of the ANS?

Which of the following structures is not associated with the autonomic nervous system?

__________ is an example of the cooperative effect between the two autonomic nervous system divisions.

Propranolol,a beta-blocker,is typically used to __________.

Which of the following is more effective in producing bronchodilation?

Under normal circumstances,both divisions of the autonomic nervous system are active simultaneously.

Most fibers of the parasympathetic nervous system travel in the __________.

Which of the following statements is true regarding parasympathetic tone?

White rami carry _________ neurons,while gray rami carry _________ neurons.

The enzyme that breaks down norepinephrine (NE)is called __________.

The adrenal medulla is a modified sympathetic ganglion.

The binding of __________ to a nicotinic receptor of a muscle fiber will __________ it.

In response to high blood pressure,stretch receptors called __________ in the walls of arteries carrying blood to the head,will trigger a reflex that causes the heart to __________ its beats per minute.

Major Themes of Anatomy and Physiology

The Chemistry of Life

Cellular Form and Function

Genetics of Cellular Function

Histology

The Integumentary System

Bone Tissue

The Skeletal System

Joints

The Muscular System

Muscular Tissue

Nervous Tissue

The Spinal Cord, spinal Nerves, and Somatic Reflexes

The Brain and Cranial Nerves

Sense Organs

The Endocrine System

The Circulatory System: Blood

The Circulatory System: Heart

The Circulatory System: Blood Vessels and Circulation

The Lymphatic and Immune Systems

The Respiratory System

The Urinary System

Water,Electrolyte,and Acid-Base Balance

The Digestive System

Nutrition and Metabolism

The Male Reproductive System

The Female Reproductive System

Human Development and Aging

General Orientation to Human Anatomy

Filters

White rami carry _ neurons,while gray rami carry _ neurons.

The binding of to a nicotinic receptor of a muscle fiber will it.

In response to high blood pressure,stretch receptors called in the walls of arteries carrying blood to the head,will trigger a reflex that causes the heart to its beats per minute.