A&P Module 6 Part 2

axon of preganglionic neuron

cell bodies of preganglionic neurons

axon of postganglionic neuron

parasympathetic ganglia

oculomotor nerve III

facial nerve VII

glossopharyngeal nerve IX

to structures of head and neck

vagus nerve

thoracic and abdominal viscera

pelvic nerves

abdominal and pelvic area

spinal cord T1

sympathetic chain ganglia

cell bodies of preganglionic neurons

axons of preganglionic neurons

superior cervical ganglion

axons of postganglionic neurons

to the structures of the head

to thoracic viscera

axons of splanchnic nerves

inferior mesenteric ganglion

abdominal viscera

celiac ganglion

inferior mesenteric ganglion

eye sympathetic

smooth muscle cells around pupil, a1, dilation of pupil

salivary glands sympathetic

cells of salivary glands, B1 and B2, certain cells increase in secretions

heart sympathetic

cardiac muscle cells, B1, rate and force of contraction increases

lungs sympathetic

smooth muscle cells of bronchus, B2, dilation of bronchioles

sweat gland sympathetic

cells of sweat glands, ACh, muscarinic, increase in secretions

blood vessels sympathetic

smooth muscle cells of blood vessels to skin, a1, vasoconstriction

muscle sympathetic

smooth muscle cells of blood vessels to skeletal muscles, B2, dilation of blood vessels

digestive system sympathetic

smooth muscle cells of blood vessels to digestive and urinary organs, a1, vasoconstriction

urinary tract and spinchters sympathetic

smooth muscle cells of digestive and urinary tract and sphincters, A1 (sphincters), B3 (digestive), and B2 (urinary). digestive and urinary tracts relax, sphincters constrict.

digestive glands sympathetic

cells of digestive glands, B2, secretion decrease

pancreas and liver sympathetic

cells of pancreas and liver, B2, increase in release of glucose

adrenal medulla sympathetic

cells of adrenal medulla, ACh, nicotinic, release of epinephrine and norepinephrine

eye parasympathetic

smooth muscle cells around pupil and lens, constriction of pupil, adjustment of lens for near vision

lacrimal/eye and salivary glands parasympathetic

cells of lacrimal and salivary gland, increase in secretions

heart parasympathetic

cardiac muscle cells, decrease in heart rate

lung parasympathetic

smooth muscle cells of bronchioles, bronchoconstriction

digestive system parasympathetic

smooth muscle cells of digestive tract and sphincters, contraction of digestive tract, smooth muscle, relaxation of sphincters

digestive glands parasympathetic

cells of digestive glands, increase in secretions

urinary system parasympathetic

smooth muscle cells of urinary sphincters, relaxation of sphincters

sympathetic

parasympathetic

brainstem

preganglionic neuron

preganglionic neuron

cervical

thoracic

parasympathetic neuron

postganglionic neuron

postganglionic neuron

sympathetic ganglia

sacral

preganglionic neuron

postganglionic neuron