Which of the following is the primary target of the releasing and release inhibiting hormones of the hypothalamus?

 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.

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.               

3.    What gland is located just superior to the kidneys?

A.   Pituitary.

B.   Adrenal.

C.   Pancreas.

D.   ovaries

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.

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.

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.

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.

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

9.    Which of these is not an endocrine gland?

A.   Pancreas.  

B.   Testes.

C.   Salivary gland.

D.   Parathyroid.  

10.Which is not a function of the hypothalamus?

A.   Affect heart rate

B.   Control temperature

C.   Affect water balance

D.   Secrete FSH

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.

12.Which of these hormones is made by the posterior pituitary?

A.   FSH

B.   LH

C.   ACTH

D.   ADH

13.Which gland controls basal metabolic rate (BMR)?

A.   Thyroid.

B.   Parathyroid.

C.   Testes.

D.   Pancreas.

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.

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.

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.

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

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.

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.

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.

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.

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.

23.Calcium level in the blood is regulated by the:

A.   Thyroid.

B.   Parathyroid.

C.   Posterior pituitary.

D.   Adrenal medulla.

E.   A and B.

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).

25.The secretions from which of these glands differs between males and females?

A.   Adrenal.

B.   Parathyroid.

C.   Gonadal.

D.   Pancreas.

Check Answer

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