important stuff Flashcards
Sympathetic
vasoconstriction:
* ANS Sympathetic preganglionic neuron will release ACh.
-This ACh will bind to the nicotinic AChR on the postganglionic neuron
acting as an EPSP (encourage action potential).
-The SNS postganglionic neuron will release Norepinephrine (NE)
* NE will bind to the alpha-adrenergic receptor on the muscle tissue of
blood vessels
* This causes the muscle tissue to contract leading vasoconstriction.
* Vasoconstriction increases blood pressure.
parasympathetic
During times of quiet or rest, our blood pressure to
lower.
* ANS Parasympathetic preganglionic neuron will release ACh.
* This ACh will bind to the nicotinic AChR on the postganglionic
neuron acting as an EPSP (encourage action potential).
* The PNS postganglionic neuron will release ACh
* This ACh will bind to the muscarinic AChR on the muscle
tissue of blood vessels
* This causes the muscle tissue to relax leading vasodilation.
* Vasodilation decreases blood pressure
reticular formation
sends impulses to cerebral cortex to keep us awake
basal nuclei
group of structures in the brain mainly responsible for motor function and movement and behavior/emotion. Cortex/cerebellum/basal ganglia thalamus