BIOL 244L Exam 1

Endocrine system

various glands of the body, the hormones that they produce, and the specific actions those hormones have on target tissues

the pituitary gland contains

anterior and posterior halves

posterior pituitary

oxytocin and antidiuretic hormones

anterior pituitary

thyroid-stimulating hormone, growth hormone, prolactin, adrenocorticotropic hormone, follicle-stimulating hormone, luteinizing hormone

the thyroid gland produces

Thyroxine (T4) via stimulation from TSH

active form of T4

T3 (Triiodothyronine)

parathyroid glands secrete

parathyroid hormone

parathyroid hormone purpose

helps absorb calcium from the intestines, reabsorb calcium in the kidneys, and remove calcium from the bone with the overall effect of increasing blood calcium levels

two sections of adrenal glands

cortex and medulla

three regions of the cortex

Zona Glomerulosa (Aldosterone), Zona Fasciculata (Cortisol), & Zona Reticularis (Androgen)

Catecholamines released by medulla

Epinephrine & Norepinephrine

Two parts of the pancreas

head and tail

Endocrine functions of a pancreas

producing insulin and glucagon

Exocrine function of the pancreas

production of digestive enzymes

testes

primary male sex hormone responsible for sperm and testosterone production

ovaries

primary female sex organs responsible for ovum development and the production of estrogen and progesterone