Endocrine System Flashcards

1
Q

What is the super system of the body?

A

Nervous system + Endocrine system together

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2
Q

The nervous system utilizes ________ to control body functions, while the endocrine system utilizes _________ to control body functions.

A

neurotransmitters

hormones

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3
Q

Neurotransmitters perform their action ________ to site of release.

A

close

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4
Q

Hormones usually perform their action _________ from their site of release

A

far

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5
Q

Nervous system acts upon _________.

A

muscle cells, glands and other neurons

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6
Q

The endocrine system acts upon ________.

A

virtually all cells of the body

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7
Q

In the nervous system, action typically occurs within _________ of neurotransmitter release.

A

milliseconds

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8
Q

In the endocrine system, action can take ________ to occur after release of hormone.

A

seconds to days

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9
Q

Duration of endocrine system action is _______ than duration of nervous system action.

A

greater

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10
Q

What are tropic hormones?

A

Hormones that trigger the release of other hormones

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11
Q

List functions of hormones.

A

Help regulate - chemical composition & volume of internal environment
- metabolism and energy balance
- contraction of smooth & cardiac muscle fibers
- glandular secretions
- some immune system activities
Control growth and development
Regulate operation of reproductive systems
Help establish circadian rhythms

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12
Q

The excess or deficiency of hormones may lead to __________ of hormone receptors.

A

Down/up regulation

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13
Q

Hormones can be divided into what chemical classes?

A

Lipid-soluble hormones and water-soluble hormones

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14
Q

List 3 lipid-soluble hormones

A

Steroid hormones, thyroid hormones, Nitrous Oxide

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15
Q

List 3 water-soluble hormones

A

Eicosanoid hormones, amine hormones, peptide hormones

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16
Q

Water-soluble hormones bind to receptors on the _________

A

cell membrane

17
Q

Lipid-soluble hormones are transported in the blood by ______ and bind to receptors on ___________.

A

transport proteins

nuclear membrane

18
Q

What is the permissive effect of hormones?

A

The action of a 2nd hormone is required for 1st hormone to take effect

19
Q

What is the synergistic effect of hormones?

A

the sum of the actions of the 2 hormones is greater than either hormone individually

20
Q

What is the antagonistic effect of hormones?

A

one hormone opposes the actions of another

21
Q

What regulates hormone secretion?

A

signals from nervous system, chemical changes in the blood, other hormones