Endo Lab review 2 

1 Start: the body is exposed to a stressor --the hypothalamus releases corticotropin-releasing hormone - CRH stimulates     ACTH release     ---     ACTH     stimulates      cortisol     release ----     cortisol      level in the blood     increase    ---     cortisol      triggers     gluconeogenesis and stress adaptations    --- the body adapts to the stressor-   ----------------------------------------------------------------------

 

2 Fill in the blanks: The nervous system works through secretion of     neurotransmitters    , whereas the endocrine system works via secretion of    --------------------------------------  .

 

3 Which of the following is not a function of the hypothalamus?

a. Produces antidiuretic hormone and oxytocin

b. Stimulates production and release of hormones from the anterior pituitary

 c. Stimulates production and release of hormones from the posterior pituitary

d. Inhibits the production and release of hormones from the anterior pituitary

 

4 Which of the following endocrine organs are part of the diencephalon?

 a. Hypothalamus

b. Pineal gland

c. Thymus

d. Both a and b are correct.

 e. Both b and c are correct.

 

 

 

5 Which of the following sets of hormones are antagonists?

a. T3 and T4

b. Calcitonin and parathyroid hormone

c. Epinephrine and cortisol

d. Growth hormone and thyroxine

 

6 Matching: Match the following endocrine organs with the hormone(s) each secretes.

______ Parathyroid gland       A. Parathyroid hormone

--------Thyroid gland                B. Insulin and glucagon

______ Pancreas                     C. Thymosin

      

______ Thymus                       D. Thyroxine

 

 

 

 

7 Which of the following is not true regarding endocrine organ histology?

a. The thyroid gland consists of rings of simple cuboidal follicle cells surrounding colloid.

 b. The pancreas has an exocrine portion consisting of pancreatic islets and an endocrine portion consisting of ac- inar cells.

 c. The adrenal cortex has three zones of cells that secrete three different types of hormones.

d. The adrenal medulla is modified nervous tissue of the sympathetic nervous system.

 

8 What is a negative feedback loop? Cite an example of a negative feedback loop in the endocrine system.

 

9 List the stimulus for secretion for each of the following hormones (note that some hormones are stimulated by other hormones):

 a Glucagon    

b Calcitonin    

 

10 List the target tissue and effects of each of the following hormones:

a Insulin

b Adrenocorticotropic hormone (ACTH

 

11.Describe the Procedure of Elisa