Week 10 and 11 Endocrine Flashcards
Endocrine system: slow or fast
slow messenger vs nervous system (hormones vs neurons) several hours
Endocrine glands produces
Hormone secretion to blood
hormone function
chemical comp and volume
metabolism/energy production
adjust to emergency and environmental demands (climate)
growth and development/ reproduction
3 kinds of endocrine hormones
Amines
proteins and peptides
steroids
negative feedback control how much secreted (needed)
Hypothalymus function
Portion of brain that links nervous system to endocrine system via pituitaryHyp
Hypothal location
below thalamus just above brain stem
forms ventral part of diancephalan
Hypothal fx
responsible for some function of autonomic nervous system
body temp, hunger, thirst, fatigue
Pituitary structure
anterior and posterior
size of pea
protrusion off hypothalamus in sphenoid body cavity
middle of cranial fossa at base of brain in middle
Pituitary fx
master gland
homeostasis, influences other endocrine glands
Neurosecretory from hypothalamus secrete
oxytocin and ADH
Posterior pituitary stores
oxytocin and ADH
Oxytocin fx
Uterine muscles
mammary glands
ADH fx
kidney tubules
stimulates water reabsorption
Oxytocin creates which kind of feedback loop
positive
intermediate pituitary gland
melanocyte stimulating hormone to produce mealanin