Question 1

Which of the following transmitters is released by the adrenal medulla?

Accepted Answer

The adrenal medulla releases epinephrine (also known as adrenaline) and norepinephrine into the bloodstream as part of the body's fight-or-flight response.

Question 2

Norepinephrine is released by all postganglionic neurons of the sympathetic nervous system, except the neurons that go to the:

Accepted Answer

Sweat glands are innervated by sympathetic postganglionic neurons that release acetylcholine, not norepinephrine.

Question 3

Receptors that mediate responses to acetylcholine are called:

Accepted Answer

Receptors that mediate responses to acetylcholine are called cholinergic receptors. These include both muscarinic and nicotinic receptors, which are involved in various functions throughout the body, including muscle contraction and neurotransmission.

Question 4

Receptors that mediate responses to acetylcholine are called:

Accepted Answer

Cholinergic receptors are the class of receptors that mediate responses to acetylcholine.

Question 5

Sympathomimetic agents are also called:

Accepted Answer

Sympathomimetic agents mimic the effects of the sympathetic nervous system and are therefore also known as adrenergic agonists. They stimulate adrenergic receptors, mimicking the action of adrenaline and noradrenaline.

Question 6

Dopamine receptors are classified as:

Accepted Answer

The answer of Dopamine receptors are classified as:
...

Question 7

Which of the following are known as adrenergic drugs?

Accepted Answer

Sympathomimetics are known as adrenergic drugs because they mimic the effects of the sympathetic nervous system by stimulating adrenergic receptors, leading to increased heart rate, dilation of the pupils, and other sympathetic nervous system responses.

Question 8

The beta 1 adrenergic receptors are located in which of the following organs?

Accepted Answer

Beta 1 adrenergic receptors are primarily located in the heart, where they play a crucial role in regulating heart rate and contractility.

Question 9

Beta 2 adrenergic receptors in the respiratory system produce:

Accepted Answer

Beta 2 adrenergic receptors in the respiratory system lead to bronchodilation, which helps in easing breathing by relaxing the bronchial muscles.

Question 10

Adrenergic agonist drugs that affect alpha adrenergic receptors are used in patients with:

Accepted Answer

Adrenergic agonist drugs that affect alpha adrenergic receptors cause vasoconstriction, which increases blood pressure. Therefore, they are used in patients with hypotension to raise their blood pressure to normal levels.

Question 11

Adrenergic blockers are also called:

Accepted Answer

Adrenergic blockers are also called sympatholytics because they block the effects of the sympathetic nervous system, which is part of the autonomic nervous system that increases the fight or flight response.

Question 12

Which of the following agents are used in the treatment of hypertension, angina, heart failure, and glaucoma?

Accepted Answer

Adrenergic blockers, also known as beta blockers, are used in the treatment of hypertension, angina, heart failure, and certain types of glaucoma. They work by blocking the effects of adrenaline on the body's beta receptors, which helps to lower blood pressure, reduce heart rate, and decrease eye pressure in glaucoma.

Question 13

Cholinergic agonist drugs are able to mimic the actions of which of the following nervous systems?

Accepted Answer

Cholinergic agonist drugs mimic the actions of the parasympathetic nervous system by stimulating the same receptors that acetylcholine does, leading to effects such as decreased heart rate and increased secretion of bodily fluids.

Question 14

Cholinergic agonist drugs are used most commonly in:

Accepted Answer

Cholinergic agonist drugs are primarily used in the treatment of glaucoma. They work by increasing the outflow of aqueous humor from the eye, which lowers intraocular pressure.

Question 15

Which of the following selectively inhibit all muscarine responses to acetylcholine?

Accepted Answer

Cholinergic blockers selectively inhibit all muscarine responses to acetylcholine by blocking the action of acetylcholine at muscarinic receptors, which are a type of cholinergic receptor.

Question 16

Which of the following statements is false?

Accepted Answer

All postganglionic neurons of the sympathetic nervous system do not release acetylcholine; most release norepinephrine, except for those innervating sweat glands, which release acetylcholine.

Question 17

Which of the following drugs may decrease sweating and cause hyperthermia?

Accepted Answer

Anticholinergics can decrease sweating by blocking the action of acetylcholine on sweat glands, potentially leading to hyperthermia.

Question 18

Cholinergic blockers are prescribed to produce:

Accepted Answer

Cholinergic blockers, also known as anticholinergics, inhibit the action of the neurotransmitter acetylcholine. This can lead to various effects, including the dilation of the pupils (mydriasis) by relaxing the muscles in the iris.

Question 19

Epinephrine is a major neurotransmitter released by the:

Accepted Answer

Epinephrine, also known as adrenaline, is primarily produced and released by the adrenal medulla, which is part of the adrenal glands located above the kidneys.

Question 20

Dopamine receptors are found in which of the following organs?

Accepted Answer

Dopamine receptors are primarily found in the kidneys, where they play a role in regulating renal blood flow and sodium excretion.

Quiz 7: Drug Therapy for the Autonomic Nervous System

Which of the following transmitters is released by the adrenal medulla?

Norepinephrine is released by all postganglionic neurons of the sympathetic nervous system, except the neurons that go to the:

Receptors that mediate responses to acetylcholine are called:

Receptors that mediate responses to acetylcholine are called:

Sympathomimetic agents are also called:

Dopamine receptors are classified as:

Which of the following are known as adrenergic drugs?

The beta 1 adrenergic receptors are located in which of the following organs?

Beta 2 adrenergic receptors in the respiratory system produce:

Adrenergic agonist drugs that affect alpha adrenergic receptors are used in patients with:

Adrenergic blockers are also called:

Which of the following agents are used in the treatment of hypertension, angina, heart failure, and glaucoma?

Cholinergic agonist drugs are able to mimic the actions of which of the following nervous systems?

Cholinergic agonist drugs are used most commonly in:

Which of the following selectively inhibit all muscarine responses to acetylcholine?

Which of the following statements is false?

Which of the following drugs may decrease sweating and cause hyperthermia?

Cholinergic blockers are prescribed to produce:

Epinephrine is a major neurotransmitter released by the:

Dopamine receptors are found in which of the following organs?