Neuroanatomy Draw It To Know It

6. Peripheral Nervous System—Autonomic Nervous System 103

DRAWING 6-5 Th e Cardiac Refl e x

Aortic arch

baroreceptors

Carotid

sinus

Carotid

body

Intermedio-

lateral

cell column

of spinal cord

Thoracic

paravertebral

ganglia

Parasympathetic

cardiac ganglion

Solitary tract nuc.

Ventrolateral

medulla

Inferior ganglia:

glossopharyngeal

& vagus nerves

Glossopharyngeal nerve

Preganglionic

parasympathetic

Postganglionic

sympathetic

Pre-

ganglionic

sympathetic

MEDULLA

Vagus nerve

Nucleus

ambiguus

Aortic bodies

(Internal

carotid)

(Rostral)

(Caudal)

Heart rate

deceleration

Heart rate

acceleration