Week 9- Endocronology Flashcards
what system is an information signaling system that uses blood vessels to send information
endocrinology
secrete hormones DIRECTLY into the bloodstream
is that endocrine or exocrine?
endocrine
send chemical substances via DUCTS to the outside of the body (sweat, mammary, mucous, salivary, lacrimal (tear) glands)
is that endocrine or exocrine?
exocrine
A small pea-sized gland located at the base of the brain; master gland
pituitary gland
what is another name for the pituitary gland?
hypophysis
what is the name of the anterior lobe of the pituitary and what type of tissue does it have?
the adenohypophysis - glandular epithelial tissue
what is the name of the posterior lobe of the pituitary and what type of tissue does it have?
the neurohypophysis - nervous tissue
the pituitary gland is under the control of ____
hypothalamus
Hormones of the Anterior Pituitary
- Growth Hormone (GH)
- Thyroid Stimulating Hormone (TSH)
- Adrenocorticotropic Hormone (ACTH)
- FSH
- LH
- Prolactin
what hormone does the following:
- Promotes protein synthesis that results in growth of bones, muscles and other tissue
- Stimulates the liver to secrete insulin-like growth factor (IGF-1) which stimulates growth of bones 3. Increases blood glucose levels and secreted during exercise, sleep and hypoglycemia
growth hormone
stimulates the growth of the thyroid gland and secretion of thyroxine (T4) and triiodothyronine (T3)
TSH
stimulates the growth of the adrenal cortex and increases its secretion of steroid hormones, like cortisol
Adrenocorticotropic hormone (ACTH)
what hormone growth of eggs in females and production of sperm in males
FSH
what hormone stimulate ovulation in females and testosterone production in males
LH
what hormone stimulate breast tissue development during pregnancy and sustain milk production after birth
prolactin
Hormones of the Posterior Pituitary
- antidieuretichorome (ADH)
2. oxytocin
stimulates the reabsorption of water by the kidney tubules; increases blood pressure by constricting arterioles
Antidiuretic hormone (ADH)/Vasopressin
stimulates the uterus to contract during childbirth and maintains labor during childbirth; also secreted during suckling (breastfeeding) and causes production of milk from the mammary glands
oxytocin
what are the 3 hormones the thyroid makes?
Thyroxine (T4) Triiodothyronine (T3) Calcitonin
what is needed to make T3 and T4
- iodine
2. tyrosine
Secreted when calcium levels in the blood are HIGH
calcitonin
what hormone helps to mobilize calcium FROM bones into the bloodstream where calcium is necessary for proper functioning of body tissues (especially muscle contraction)
parathyroid hormone
what does the adrenal cortex secret?
secretes steroids/corticosteroids (from cholesterol)
what does the adrenal medulla secret?
secretes catecholamines (from amino acids)