Ch 4 Exam Flashcards
(370 cards)
endocrine system
controls the secretions of hormones from several glands located throughout the body
glands
organs that secrete or release hormones into the bloodstream
hormones
chemical substances that are released from the glands in small amounts and travel thru the blood to other tissues and organs
endocrinology
study of the endocrine system
endocrinologist
physician that dx and treats the conditions of the endocrine system
pituitary
located in brain
master gland
regulates other endocrine glands
pineal
located in brain
regulates sleep
thyroid
located in neck
anterior to trachea
metabolism, growth and development
parathyroid
located in neck
maintains calcium and phosphate levels
2 pairs superior and interior
pancreas
located in epigastric area of abdomen
blood glucose regulation
adrenals
located in abdomen above the kidneys
regulates sodium & potassium, carbs metabolism, sex hormones, and epinephrine secretion in emergencies
2 parts: adrenal cortex and adrenal medulla
ovaries, testes
located in pelvis
male and female secondary sexual characteristics
thymus
located in mediastinum, in front of heart
regulates the immune system
adenohypophsis
anterior portion of the pituitary gland
Secretes:
growth hormones
adrenocorticotropin hormone
thyroid-stimulating hormone
follicle-stimulating hormone
prolactin hormone
melanocyte-stimulating hormone
growth hormone (GH)
regulates the growth and development of the bones, muscles, and to other organs
adrenocorticotropin hormone (ACTH)
regulates the growth of the adrenal cortex
thyroid stimulating hormone (TSH)
stimulates the growth of the thyroid gland
follicle-stimulating hormone (FSH)
Luteinizing hormone (LH)
control sex glands in males and females
prolactin hormone
stimulates the growth and development of the mammary glands
melanocyte-stimulating hormone
controls skin pigmentation
neurohypophysis
posterior portion of the pituitary gland
secretes:
antidiuretic hormone (ADH)
oxytocin
antidiuretic hormone (ADH)
regulates the secretion or reabsorption of water in the kidneys
oxytocin
stimulates the uterus to contract during childbirth and release of milk from the mammary glands
thyroid secretes
thyroxine (T4)
triiodothyronine (T3)
calcitonon
t4: maintains and regulates the basic metabolic rate of the body
growth and development of the body
and metabolism of nutrients, water, vitamins, and minerals
t3: also regulates the basic metabolic rate
calcitonin: involved in bone and calcium metabolism