chapter fifteen Flashcards
(41 cards)
fatal disruption to body function
hypothalamus defect
discrete sensory or motor deficit
dorsal thalamus
regulates body temperature and blood composition
regulatory process
cells lie next to the third ventricle , control ANS
periventricular zone
extend axons toward the pituitary
neurosecretory cells
social bonding, uterine contraction, and lactation (neurohormone)
oxytocin
regulates blood volume and salt concentration (neurohormone)
vasopressin
vasopressin acts on kidneys and produces ____, what releases vasopressin? (neurohormone)
thirst, pituitary
kidneys release _____
renin
renin produces _____ and acts in the brain
angiotensin II
paraventricular hypothalamus secretes _____ into portal circulation (stress response)
CRH
anterior pituitary releases ____ into the circulation (stress response)
ACTH
ACTH stimulates _____ release from adrenal cortex (stress response)
cortisol
increases heart rate and blood pressure, depresses digestive function, activating “fight or flight”
sympathetic nervous system
slower heart rate, fall in pressure, increased digestive functions, stop sweating
parasympathetic nervous system
the enteric division is made up of two complicated networks, what are they?
myenteric
submuccous
the enteric division is located in the stomach, intestines, pancreas, and gallbladder, what is its function
control physiological processes involved in transport and digestion of food
integrates sensory information from internal organs and coordinates output
solitary nucleus
connections for autonomic control
paraventricular zone (connects to brain stem and spinal cord nuclei)
nucleus of solitary tract (medulla)
neurotransmitters of the ANS
acetylcholine, ganglionic (ACh), small peptied
which ANS neurotransmitter binds to nicotinic receptors and evokes fast ESPS
acetylcholine
which ANS neurotransmitter activated muscarinic receptors, slow ISPS and ESPS
ganglionic Ach
parasympathetic or sympathetic? releases acetylcholine; has a local effect
parasympathetic
parasympathetic or sympathetic? release norepinephrine; far reaching effects
sympathetic