Nervous Systems VIII

Question	Answer
ANS reflex arc (5)	Visceral afferent w/ receptive nerve ending Interneuron Autonomic preganglionic neurone Autonomic postganglionic neurone Effector
MOA	Stimulus evokes AP in visceral afferent Intergrates w/ interneurons in CNS Stims auto pre+post ganglionic Leads to + of target organ
First seen in	Annelids Have myogenic heart regulated by sympathetic nerves
PNS SNS	Rest+digest Fight or flight Often operate antagonistically
EFFERENT ANS PNS	Pre-ganglionic neuron Post-ganglionic neuron Ach onto muscarinic AchR
SNS	Pre-ganglionic neuron Post-ganglionic neuron Noradrenaline or Ach B/a-adregenic R
What do all pre-ganglionic neurons in CNS release onto-postganglionic neuons?	Ach which binds to ionotropic AchR in post
PNS outflows	Cranio-sacral outflows
SNS outflows	Thoraco-lumbar outflows
What do cranial control?	Secretory glands in head
What do sacral control?	Bladder, erectile tissue
Where are SNS cell bodies found?	In lateral horn of spinal cord from segment T1-L3
Where can pre-ganglionic axons synapse in	Paraventral ganglia (along spinal cord) Prevertebral ganglia (in root)
Boner	PNS NO -> smooth muscle relax -> arteries fill w/ blood
Jizz	SNS contraction of epididymis + vas deferens -> ejaculation
Nervous system integration during sex	ANS and Somatic nervous system
Autonomic AFFERENT nerves	Cell bodies in dorsal root ganglia Sends physiological info about the organ condition
What is the name of the system controlled by ANS for GI?	Enteric nervous system

Resource summary

	Created by J yadonknow over 6 years ago