Endocrine System Part 1 Flashcards

1
Q

How does the endocrine communicate and control

A

Hormones secreted into and circulated by the blood

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2
Q

Where are the organs of the endocrine system located?

A

Neck, cranial, thoracic, abdominal, and pelvic cavities

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3
Q

There are two types of glands in the body. Which type belongs to the endocrine system,

A

Endocrine glands

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4
Q

Target cell

A

Cell that hormone binds to because it has a specific receptor for that type of cell

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5
Q

Hyper secretion

A

Production of too much hormone by disease of a gland

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6
Q

Hypo secretion

A

Too little of a hormone is produced by a gland

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7
Q

No steroid hormones work according to

A

Second messenger mechanisms

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8
Q

Nonsteroid hormones serve as…

A

First messengers

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9
Q

Lipid soluble steroid hormones

A

Do not occur by the second messenger system, and can pass intact directly through the plasma membrane of the target cell

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10
Q

Major difference between nonsteroid and steroid hormones

A

Nonsteroid hormones serve as a first messenger by releasing a second messenger in a cell by binding to a receptor on the outside of the cell. A steroid hormone pass through the plasma membranes and into the nucleus where they bind to a receptor

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11
Q

Which triggers a dasher response, steroid or nonsteroid hormones?

A

Nonsteroid

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12
Q

The regulation of hormone levels in the blood depends on a highly specialized homeostatic mechanism called…

A

Negative feedback

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13
Q

Positive feedback systems result in…

A

Amplified changes

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14
Q

What is a prostaglandin?

A

Tissue hormone

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15
Q

What is the abbreviation for prostaglandins?

A

PGs

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16
Q

What are the three classes of prostaglandins?

A

Prostaglandin A (PHA), Prostaglandin E (PHE), and Prostaglandin F (PGF)

17
Q

What do PGs influence?

A

Respiration, blood pressure, gastrointestinal secretions, inflammation, and the reproductive system

18
Q

How do researches believe PHs regulate cells?

A

Influencing production of cAMP

19
Q

What is the difference between prostaglandins and hormones?

A

They are produced by the tissue and then released into neighboring cells in that tissue whereas hormones influence and control activities of widely spread organs.

20
Q

Function of the endocrine system

A

Communication and control