EXERCISES, LESSON 11
REQUIREMENT. The following exercises are to be answered by completing the
incomplete statements.
After you have completed all the exercises, turn to "Solutions to Exercises" at the
end of the lesson, and check your answers with the Academy solutions.
1.
The endocrine glands are organs of internal
n. Since they lack a duct
system, they are often called
less glands. They are usually well supplied with blood
vessels to facilitate the release of their secretions into the
d.
2.
A hormone is a chemical required in very small amounts for the proper
ment or f
g of the body. Unlike a vitamin, a hormone is produced
within the body.
The blood carries each hormone to its t
organ, whose level of activity in
turn affects the
e organ. Thus, to ensure the secretion of just the right amount
of hormone, there is a
k mechanism.
3.
Many of the hormones of the pituitary body are called "tropins" because they
cause
ment or
y of the tissues.
4.
Antidiuretic hormone (ADH) and oxytocin are produced by the
s and
released from the
r pituitary gland.
Antidiuretic hormone is involved with the r
ption or sal
g of water
within the kidneys. Antidiuretic hormone is produced under t
t conditions.
Oxytocin is involved with
s of smooth muscle in the uterus and with
k secretion.
5.
Somatotropin, thyrotropin, and adrenocorticotropic hormone (ACTH) are
produced by the
r pituitary gland.
Somatotropin stimulates the
th of the body in general.
Thyrotroin stimulates the
d gland to produce its hormones.
ACTH stimulates the a
cortex to produce its hormones.
MD0007
11-8