Part 5- Ch. 16 Endocrine System

What would cause a surge of prolactin (PRL)?

A decrease in prolactin inhibiting hormone

Which two hormones are released from the posterior pituitary?

ADH and oxytocin

Delayed or stunted growth may result from an impairment in which gland?

Anterior pituitary

Where is TSH produced?

Anterior pituitary

Which gland (or organ) produces adrenocorticotropic hormones?

Anterior pituitary

What is a major function of growth hormone?

Causes cells to undergo mitosis and increase in size

What is the function of adrenocorticotropic hormone?

Causes the adrenal cortex to produce hormones

ADH is secreted in response to what conditions?

Dehydration and low blood pressure

Which of the following hormones stimulates ovarian follicle maturation and sperm production?

FSH

What hormone stimulates the production of FSH?

GnRH

FSH and LH belong in which category of hormones?

Gonadotropins

Which of the following substances stimulates most body cells to increase in size and divide?

Growth hormone

Diabetes insipidus is caused by what homeostatic imbalance?

Hyposecretion of ADH

Which of the following best describes a function of GH?

Mobilizes fats, spares glucose, and promotes protein synthesis

Which of the following homeostatic imbalances results from hyposecretion of growth hormone?

Pituitary dwarfism

Identify the part of the hypophyseal portal system indicated by "A."

Primary capillary plexus

What is the site of release and function of LH?

Released from anterior pituitary; causes ovulation and interstitial cells to produce testosterone in the testes

What is the function of prolactin?

Stimulates milk production

What is the function of TSH?

Stimulates thyroid hormone production

What hormone secreted by the hypothalamus triggers the release of TSH?

TRH

What hormone stimulates the release of thyroid hormones?

TSH

The hypophyseal portal system transports releasing and inhibiting hormones from the hypothalamus to the __________.

anterior pituitary

As blood levels of __________ rise, the expulsive contractions of labor gain momentum and finally end in birth.

oxytocin

Oxytocin is released from the _________.

posterior pituitary

The ________ releases neurohormones in response to nervous signals from the hypothalamus.

posterior pituitary

Hypersecretion of growth hormone would cause all the following except __________.

suppression of cancer