Print Quiz: Endocrine System 2 (endocrine system

1.

Which of the following are FALSE regarding the hypothalamus

A.

Hypothalamus regulates the pituitary glad through tropic hormones

B.

The hypothalamus receives nervous and chemical inputs.

C.

The hypothalamus is located in the hindbrain

D.

The hypothalamus causes anterior pituitary to release ADH

2.

GnRH is release from the hypothalamus and binds to receptors in the anterior pituitary which triggers the release of...

A.

GH

B.

FHS

C.

TSH

D.

LH

3.

Prolactin Inhibiting Factor (PIF) is actually dopamine released by the hypothalamus which causes a decrease in prolactin secretion.

A.

False

B.

True

4.

Which are true regarding the posterior pitui

A.

It does not receive tropic hormones from the hypothalamus

B.

Neurons from the hypothalamus innervate the posterior pituitary stock and release ADH and Oxytocin

C.

ADH and oxytocin are produced in hypothalamus and released by the posterior pituitary

D.

The posterior pituitary is under somatic control

5.

Direct hormone released from the anterior pituitary that prevents glucose uptake in certain tissues and stimulates the breakdown of fatty acids

A.

Endorphines

B.

Prolactin

C.

Growth Hormone

D.

Thyroid stimulating hormone

6.

Which hormone (and from where) is secreted in response to low blood volume or increased blood osmolarity

A.

ADH from the anterior pituitary

B.

ACTH from the anterior pituitary

C.

ACTH from the posterior pituitary

D.

ADH from the posterior pituitary

7.

Which of the following are TRUE regarding oxytocin

A.

It has a positive feedback loop

B.

It stimulates contraction of uterine smooth muscle

C.

It stimulates the skeletal muscle of abdominal contractions

D.

Stimulated by suckling causing contraction of the skeletal muscle in the breast.

8.

Triiodothyronine (T3) and Thyroxine (T4) are responsible for...

A.

Regulating calcium absorption in the bloodstream

B.

Regulating osteoblast production

C.

Mediating basal metabolic rate of the thyroid

D.

Stimulating the release of aldosterone in the kidneys

9.

Select all that are TRUE regarding T3 and T4

A.

3 and 4 refer to the number of iodine atoms attached to tyrosine

B.

They can alternate the utilization of glucose and fatty acids

C.

Increased levels of T3 and T4 lead to increased cellular respiration

D.

High plasma levels of T3 and T4 decreases TSH and TRH synthesis due to negative feedback control

10.

Calcitonin decreases Ca levels in the plasma via...

A.

Increasing Ca secretion from the kidneys

B.

Decreasing Ca absorption in the gut

C.

Decreasing Ca binding receptors in the blood

D.

Increases the storage of Ca in bones

11.

Which hormone is antagonist to Calcitonin?

A.

TSH

B.

GH

C.

PTH

D.

Endorphines

12.

Parathyroid Hormone (PTH) is responsible for...

A.

Increasing blood Ca levels

B.

Activating vitamin D

C.

Reduces reabsorption of phosphate in the kidneys

D.

Resorbs phosphate from bones