Endocrine System EXAM ONE

Question 1

1. Which of these is true of the endocrine system?
   A. secretes hormones that are transported to target cells by blood
   B. causes changes in metabolic activities
   C. effects are prolonged
   D. All of above are true.

Answer 1

1. The correct answer is D.

Question 2

2.    Name the gland that is located at the base of the throat, just inferior to the laryngeal prominence (Adam's apple). 
A.   Pituitary.
B.   Pineal gland.
C.   Hypothalamus.
D.   Thyroid.

Answer 2

2. The correct answer is D.

Question 3

3.    What gland is located just superior to the kidneys?
A.   Pituitary.
B.   Adrenal.
C.   Pancreas.
D.   ovaries

Answer 3

3. The Correct answer is B.

Question 4

4.    In the pancreas, which are the cells that secrete insulin, decrease the blood levels of glucose.
A.   delta.
B.   alpha.
C.   beta.
D.   beta.

Answer 4

4. The correct Answer is D.

Question 5

5.    The endocrine gland responsible for the body's circadian rhythm is the:
A.   Thymus gland.
B.   Pineal gland.
C.   Parathyroid gland.
D.   Pituitary gland.

Answer 5

5. The correct answer is B.

Question 6

6. Endocrine glands differ from exocrine glands in that:
   A. Endocrine glands are ductless and exocrine glands release secretions at the body’s surface or into ducts.
   B. Endocrine glands release hormones, whereas exocrine glands release waste.
   C. Endocrine glands are formed by epithelial tissue, but exocrine glands are primarily connective tissue.
   D. Endocrine glands are all interconnected; whereas exocrine glands act completely independently.

Answer 6

6. The correct answer is A.

Question 7

7. Which of these is not an endocrine property?
   A. hormones reach targets through the blood
   B. effects are slow and cyclic
   C. rapid acting effects
   D. effects caused by chemicals.

Answer 7

7. The correct answer is C.

Question 8

8.    The primary target of the releasing and inhibiting hormones of the hypothalamus is the:
A.   Liver and adipose tissue
B.   Gonads
C.   Anterior pituitary
D.   Bone marrow

Answer 8

8. The correct answer is C.

Question 9

9.    Which of these is not an endocrine gland?
A.   Pancreas.  
B.   Testes.
C.   Salivary gland.
D.   Parathyroid.

Answer 9

9. The correct answer is C.

Question 10

10.Which is not a function of the hypothalamus?
A.   Affect heart rate
B.   Control temperature
C.   Affect water balance
D.   Secrete FSH

Answer 10

10.The correct answer is D.

Question 11

11.Which if the following gland which can be classified as an endocrine and an exocrine gland?
A.   Thyroid.
B.   Thymus.
C.   Pancreas.
D.   Pituitary.

Answer 11

11.The correct answer is C.

Question 12

12.Which of these hormones is made by the posterior pituitary?
A.   FSH
B.   LH
C.   ACTH
D.   ADH

Answer 12

12.The correct answer is D.

Question 13

13.Which gland controls basal metabolic rate (BMR)?
A.   Thyroid.
B.   Parathyroid.
C.   Testes.
D.   Pancreas.

Answer 13

13.The correct answer is A.

Question 14

14.How do hormones from the thyroid and parathyroid regulate the calcium concentration of the blood?
A. Calcitonin lowers blood calcium; parathyroid hormone raises blood calcium.
B. Parathyroid hormone lowers blood calcium; calcitonin raises blood calcium.
C. Thyroxine and triiodothyronine together regulate calcium levels, as needs dictate.
D. Both parathroid hormone and the three thyroid hormones function to regulate blood calcium levels

Answer 14

14.The correct answer is A.

Question 15

15.The posterior pituitary stores and releases:
A. Growth hormone and prolactin.
B. Prolactin and oxytocin.
C. Oxytocin and antidiuretic hormone (ADH).
D. ADH and growth hormone.

Answer 15

15.The correct answer is C.

Question 16

16.Which of the following hormones are responsible for the "fight-or-flight" response?
A.   Epinephrine and norepinephrine.
B.   Insulin and glucagon.
C.   Esrtogen and progesterone.
D.   Thyroxin and melatonin.

Answer 16

16.The correct answer is A.

Question 17

17.The pituitary hormone that  stimulates the male testes to produce sperm and stimulates the development of the follicle in the female on a monthly cycle is:
A.   growth hormone
B.   luteinizing hormone
C.   prolactin
D.   follicle-stimulating hormone

Answer 17

17.The correct answer is D.

Question 18

18.Which hormones of the adrenal glands supplement the sex hormones from the gonads?
A. Mineralocorticoids, such as aldosterone
B. Glucocorticoids, such as cortisol
C. Gnadocorticoids, such as the androgens
D. Epinephrine and norepinephrine.

Answer 18

18.The correct answer is C.

Question 19

19.The clusters of cells in the pancreas that produce hormones are the:
A.   Nodules.
B.   Islets of Langerhans.
C.   Pancreatic medulla.
D.   Pancreatic cortex.

Answer 19

19.The correct answer is B.

Question 20

20.The Glucagon is:
A. accelerates the conversion of glycogen into glucose.
B. slows down glucose formation from lactic acid.
C. decreases the conversion of glycogen into glucose.
D. speeds up protein synthesis within cells.

Answer 20

20.The correct answer is A.

Question 21

21.Most hormones of the endocrine system are regulated by a:
A.   Negative feedback mechanism.
B.   Positive feedback mechanism.
C.   Hormone-receptor complex.
D.   Hormone-gene complex.

Answer 21

21.The correct answer is A.

Question 22

22.Calcitonin is a hormone of which of following:
A.   Adrenal cortex.
B.   Thyroid gland.
C.   Pituitary gland.
D.   Thymus gland.
E.   None of the above.

Answer 22

22.The correct answer is B.

Question 23

23.Calcium level in the blood is regulated by the:
A.   Thyroid.
B.   Parathyroid.
C.   Posterior pituitary.
D.   Adrenal medulla.
E.   A and B.

Answer 23

23.The correct answer is E.

Question 24

24.All of the following are hormones of the anterior pituitary except:
A.   Human growth hormone (GH).
B.   Follicle-stimulating hormone (FSH).
C.   Parathyroid hormone(PTH).
D.   Thyroid-stimulating hormone (TSH).

Answer 24

24.The correct answer is C.

Question 25

25.The secretions from which of these glands differs between males and females?
A.   Adrenal.
B.   Parathyroid.
C.   Gonadal.
D.   Pancreas.

Answer 25

25.The correct answer is C.