Chapter 6 Endocrine Exam Study Questions
Introduction
1. Define and list the primary endocrine organs.
2. Define and list secondary endocrine organs.
3. (T/F) Tropic hormones always inhibit the release of other hormones.
6.1 Primary Endocrine Organs
1. What are the functions of hypothalamus?
2. Identify each label and state its functions
Name
Function
A
B
C
D
E
3. What is the function of the hypothalamic-pituitary portal system?
4. Define tropic hormone and list the two glands that secrete tropic hormones.
5. Complete the labels (Figure 6.5).
A
F
K
O
U
B
G
L
Q
V
C
H
M
R
W
D
I
N
S
X
E
J
O
T
Y
1
2
3
4
5&6
1
6. Based on the diagram above, list the target organ for: TSH__________ ATCH __________
Prolactin_____________________
7. How is the short loop negative feedback loop different from the long loop negative
feedback loop?
8. Pineal gland secretes ____________. Its function is ______________________________________.
9. Two thyroid hormones that regulate the body’s metabolic rate are ___ (thyroxine) and
___.
10. Which hormone produced by thyroid gland decreases blood calcium level? ________
11. Which hormone produced by parathyroid gland increases blood calcium level? _____
12. Thymus gland secretes ______________, which functions in _________________
13. Adrenal glands
Cells
Hormone(s)
Function
Cortex
Zona
Medulla
Zona
1.
1.
Zona
2.
2.
chromaffin
1.
2.
3.
2
14. Complete the labels of a cross section of the pancreas and answer questions related to
pancreas hormone function.
a. Letter A refers a___________ cell that secretes________________.
b. Letter B refers ______cells and _______________ cells which
function exocrine.
c. Letter C refers a ______ cell that secretes __________.
d. Letter D refers to a _______ cell that secretes ______________
which helps to regulate
________________________________________
e. Letter E refers to a __ cell that secretes __________________
_____________ which inhibits exocrine secretions of the
pancreases and gallbladder.
f. Which hormone lowers blood glucose level? ________
g. Which hormone increases blood glucose level? _______________
h. Which hormone inhibits the secretion of pancreatic hormone? ___________
6.2 Secondary Endocrine Organs
a. ANP
b. Erythropoietin (EPO)
c. Insulin-like growth hormone
d. 1.25- dihydroxy vitamin D3.
e. CCK, secretin and gastrin
1. Heart secretes hormone ________ which inhibits sodium reabsorption
2. Kidneys secrete hormone________ which stimulates the production of red blood cells
by the bone marrow.
3. GI tract releases ____ to regulate digestive function
4. Liver secretes ______which promote bone and soft tissue growth
5. These three organs skin, liver kidneys are all involved in the activation of _______
6.3 Hormone Actions at the Target Cell
1. The concentration of free hormone in the blood depends on (page 158)
a. _____________________________________________________________
b. _____________________________________________________________
c. _____________________________________________________________
2. Interpretation of figures. Circle the increase (↑) or decrease (↓)
a. Based on Figure 6.11. Increased stress level→ (↓ or ↑) CRH secretion from
hypothalamus → (↓ or ↑) secretion of ACTH from anterior pituitary gland → (↓
or ↑) secretion of cortisol from adrenal cortex.
3
b. Based on Figure 6.12. Increased blood K ion → (↓ or ↑ ) aldosterone secretion
from _______→ (↓ or ↑) excretion of K+ from _______→ (↓ or ↑) blood K+ level.
6.4 Abnormal Secretion of Hormones
1. Primary secretion disorder originates in the _______________ gland.
2. Secondary secretion disorder originates in the ____________ and ____________ which produce
________ hormone.
6.5 Hormones Interactions
1. Hormone Interactions
Interaction Type
Definition
Antagonism
Additive
Synergistic
Permissiveness
4
Example