Chapter 9- The Endocrine System

Oxytocin

Oxytocin

________- hormones that is released in big amounts during childbirth and nursing.

Thyroxine

________ (T4)- produced by thyroid follicles.

Steriods

________- constructed from cholesterol.

plasma membrane

Change the ________ by opening or closing the ion channels.

second messenger

Catalyzes a reactions that makes a(n) ________ molecule.

Menopause

________ occurs due to the inefficient function of the ovaries.

Humoral

________- changes blood levels of specific types of ions when hormone release occurs.

Pancreas

________ and gonads have both endocrine and exocrine functions.

powerful crontraction

Stimulates ________ of the uterus muscle during sexual relations, labor, and breastfeeding.

blood level

Lowers calcium ________ by causing bone deposition.

Prostanglands

________- produced from highly active lipids.

Antidiuretic hormone

________ (ADH)- chemical that prevents urine production.

Testosterone

________ is the most crucial androgen.

anterior pituitary

The ________, thyroid, parathyroids, and adrenal only have endocrine functions.

ADH

________ helps with blood pressure by shrinking the small arteries, this is know as vasopressin.

Hormones

________- chemical messengers made by endocrine glands.

gonads

pancreas and ___ have both endocrine and exocrine functions

pituitary gland

size of a pea, and has two lobes

antidiuretic hormone(ADH)

chemical that prevents urine production

ADH

water is essential for ___