Download Anatomy and Physiology II

Anatomy and Physiology II
Endocrine System
Functioning of the Endocrine System
Part A
Using information from your book and notes to complete the statements below
1.
The nervous system works with the _________________ to make coordination of body systems possible.
2.
The nervous system controls most _____________ responses of the
body.
3.
The endocrine system secretes ________________ into the blood.
4.
__________________ have a _______________ reaction time than
nerve impulses.
5.
______________ have a ________________ duration of action than
nerve impulses.
6.
Hormonal stimulation is more ________________ than the action of nerve
stimulation which is more precise.
7.
Hormones act to stabilize body conditions such as:
a) __________________________
b) __________________________
c) __________________________
8.
Hormones are ____________ substances secreted from
_________________ into the _________________
9.
Exocrine glands secrete substances which ___________________ the body.
10.
Endocrine glands secrete ________________ into the ________________
11.
_____________ cells are cells that can react to specific hormones.
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12.
Some endocrine glands/tissues are:
a) ________________
b) ________________
c) ________________
d) ________________
e) ________________
13.
Hormones alter the ________________of the normal reactions of target
cells.
14.
Hormones can act by:
a) ________________ the surface of the target cell
b) ________________ target cell and combining with protein molecules
c) entering __________________ of target cell
15.
Hormone levels are controlled by ________________.
This is type of control is similar to the regulation of _________________ in
your home.
16.
The thyroid gland secretes ________________
17.
The pancreas secretes ________________and ________________.
The endocrine portions of the pancreas are called ________________.
18.
Some of the hormones secreted by the pituitary gland are _______________,
________________, ________________and __________________.
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Part B:
Complete the following statements by choosing answers from the choices given
below.
hormones
nerve impulses
altering activity
negative feedback
electrolyte
water
neural
hormonal
sugar or protein
humoral
target cell(s)
hypothalamus
reproduction
metabolism
slower and more prolonged
circulatory system
anterior pituitary
nutrient
neuroendocrine
receptors
hormones
nervous system
stimulating new activities
The endocrine system is a major controlling system in the body. Its means of
control, however, is much ___________________________ than that of the
_______________________, the other major body system that acts to maintain
homeostasis. Perhaps the reason for this is that the endocrine system uses
chemical messengers, called ________________ instead of __________________.
These chemical messengers enter the blood and are carried throughout the body by
the activity of the _________________.
The endocrine system has several important functions: It helps maintain
_________________, _________________, and ________________balance;
regulates energy balance and _________________; prepares the body for
childbearing or ________________.
All cells do not respond to endocrine system stimulation. Only those that have the
proper ________________on their cell membranes are activated by the chemical
messengers. These responsive cells are called the ________________ of the
various endocrine glands.
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Hormones promote homeostasis by ________________of body cells rather than by
___________________. The various endocrine glands are prodded to release their
hormones by nerve fibres (a __________________ stimulus), by other hormones
(a ___________________ stimulus) or by the presence of increased or decreased
levels of various substances in the blood (a ___________________ stimulus). The
secretion of most hormones is regulated by a ____________________ system, in
which increasing levels of that particular hormone “turn off” its stimulus. The
__________________ is called the master endocrine gland because it regulates so
many other endocrine organs. However, it is in turn controlled by
_________________ secreted by the __________________.
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