BIOL 207 Lecture Notes - Lecture 23: Vasoconstriction, Angiotensin, Mammary Gland
Document Summary
Hypertensin (angiotensin) produced by reaction of kidney cortex protein (renin), which acts as an enzyme on blood protein (angiotensinogen) Renin release triggered by drop in blood pressure (consequence of low blood volume) Hypertensin is a vasoconstrictor targets walls of small blood vessels (arterioles), causes them to constrict and increase overall systematic blood pressure. Erythropoietin (epo) produced by kidneys in response to hypoxic/anoxic body conditions. Targets red bone marrow to increase red blood cell production (erythropoesis) Hypercapnea, hypercarbia, and hypercarbic refer to increase blood co2 vessels. Estrogens- stimulate growth and maturation of reproductive organs (testes and ovaries), internal and external genitalia. Progesterone- focused on pregnancy and works in conjunction with estrogens. Promote mammary gland growth and development to prepare for lactation. Relaxes pubic symphysis and dilates uterine cervix at end of pregnancy. Both ovaries and testes release inhibin, a hormone that inhibits release of fsh (follicle stimulating. Stimulated by factors releases by developing spermatozoa and developing follicles (females)
