Autonomic Flashcards
What’s afferent neurons
Sensory (pns to cns)
What’s efferent neurons
Motor (cns to pns)
Where do somatic (voluntary) neurons go
Skeletal muscle
Where do autonomic (involuntary) neurons go
Sympathetic and parasympathetic system. (Cardiac, smooth muscle and glands)
how do synapses work
action potential open Ca gates and allows it to flow in, fuses with presynaptic cleft that allows neurotransmitters to diffuse through synaptic cleft and bind to postsynaptic cleft
somatic pathway
sensory input - special/somatic senses
voluntary control
acetylcholine
1 neuron pathway
innervates skeletal muscle
autonomic
internal sense receptors
involuntary
acetylcholine and norepinephrine
2 neuron pathway
smooth and cardiac muscle, glands
has myelinated pathway then unmyelin
sympathetic and parasympathetic nerves
sym - ach then ne
sym to glands - ach then ach
para - ach then ach
whats hypophseal portal veins
form a network of blood vessels that connect the hypothalamus to the anterior pituitary
function of adrenal medulla
enhance symp response stimulated by ach from symp pre-ganglionic neurons
adrenal cortex function
resistance to dampen inflammation uses (glucocorticoids) cortisol and corticoids. Regulates sodium and potassium balance by promoting sodium retention and potassium excretion in the kidneys. This helps control blood pressure and fluid balance.
diff in water and lipid soluble protein pathways
lipid - moves through blood with carrier, makes proteins and can pass through lipid bilayer, activates genes DNA
water - associates with g proteins and kinases
whats infundibulum
stalk connecting hypothalamus and pituitary