Exam1: ANS Flashcards
Sympathetic
Stimulate Adrenal Medulla Sweat Glands Stimulated Thick saliva Relax bladder inhibit GI tract Pupils/bronchi/muscles dilate Abdomen constricts
Parasympathetic
Inhibit Adrenal Medulla thin saliva contract bladder stimulate GI tract pupils/bronchi/muscles constrict Abdomen constricts
Where are parasympathetic preganglion cell bodies?
CNS: Medulla (3, 7, 9, 10), and sacral spinal cord
Where are sympathetic preganglion cell bodies?
CNS: cell bodies in thoratic lumber and spinal cord
For both systems, preganglion in _______, postganglion in _____
CNS
autonomic ganglion
Parasympathetic post ganglion
cell bodies in ganglion near innervated tissue and organs
Sympathetic post ganglion
cell bodies in paravertebral chain ganglia or prevertebral ganglia
Parasympthetic also
Craniosacral
Sympathetic also
Thoracolumbar
Para Per: Post ratio
1:1
Sym Pre: Post ratio
1:20
Para/sym neurons BOTH first go to
Acetylcholine Nicotinic receptors [N]
Parasympathetic #2
Ach [M]
Sympathetic #2
NE [alpha and beta]
alpha 1,2 NE is
inhibitory