Exam 28: Chemical Messengers: Hormones, neurotransmitters, and Drugs

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Compare the nervous system and the endocrine system with respect to chemical messengers used,and the messenger molecules' means of transport,specificity,and time lapse between release and effect.

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Nervous system: Its chemical messengers are neurotransmitters which are produced in nerve cells,released into the synaptic cleft,acting immediately to deliver the impulse to the next cell.There are several broad classes of neurotransmitters.
Endocrine system: Its chemical messengers are hormones,which are produced by glands or endocrine cells throughout the body and transported in the blood stream to target cells,which also may be located throughout the body.There may be a considerable time lag between production of a hormone and a response to its action.Hormones have different effects on different types of target tissues.

The second messenger for the hormones epinephrine is

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Which statement(s)about hormones are correct?

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Estrogens are a specific type of steroid whose function is to

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Question 4

All of the following types of molecules function as chemical messengers in the body except

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Question 5

Which type of steroids is mimicked by anabolic steroids?

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Question 6

Match the following. -vasopressin

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Question 7

A drug that interacts with a receptor to produce or enhance its normal response is a(an)

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Question 8

Which hormone is an example of a steroid?

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Question 9

Which of the following hormones are involved in growth and development?

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Question 10

The place where the tip of a neuron and the target cell are adjacent to each other is called the

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Question 11

If a neurotransmitter molecule is to be used again to carry messages,it is removed from the postsynaptic neuron by the process of

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Question 12

Nerves that use acetylcholine as their neurotransmitter are said to be

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Question 13

The organ that controls the endocrine system is the

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Question 14

When acetylcholine is adsorbed onto a cholinergic receptor of a neuron,

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Question 15

A molecule that enters the body from an external source and alters its normal functions is a(an)

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Question 16

Which statement about hormones is not correct?

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Question 17

When epinephrine interacts with a cell,the step immediately following binding of the messenger with the receptor site is

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Question 18

A chemical messenger that travels to a target cell transmitting a nerve impulse is called a(n)

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Question 19

The receptors on the surfaces of cell membranes are

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Question 20

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Exam 28: Chemical Messengers: Hormones, neurotransmitters, and Drugs

Compare the nervous system and the endocrine system with respect to chemical messengers used,and the messenger molecules' means of transport,specificity,and time lapse between release and effect.

The second messenger for the hormones epinephrine is

Which statement(s)about hormones are correct?

Estrogens are a specific type of steroid whose function is to

All of the following types of molecules function as chemical messengers in the body except

Which type of steroids is mimicked by anabolic steroids?

Match the following. -vasopressin

A drug that interacts with a receptor to produce or enhance its normal response is a(an)

Which hormone is an example of a steroid?

Which of the following hormones are involved in growth and development?

The place where the tip of a neuron and the target cell are adjacent to each other is called the

If a neurotransmitter molecule is to be used again to carry messages,it is removed from the postsynaptic neuron by the process of

Nerves that use acetylcholine as their neurotransmitter are said to be

The organ that controls the endocrine system is the

When acetylcholine is adsorbed onto a cholinergic receptor of a neuron,

A molecule that enters the body from an external source and alters its normal functions is a(an)

Which statement about hormones is not correct?

When epinephrine interacts with a cell,the step immediately following binding of the messenger with the receptor site is

A chemical messenger that travels to a target cell transmitting a nerve impulse is called a(n)

The receptors on the surfaces of cell membranes are

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