the autonomic nervous system Flashcards
outline the features of the sympathetic nervous system
Segmental chain ganglia 1 per deratome
Because of neural crest development
Short preganglionic and long post ganglionic
outline features of the parasympathetic nervous system
No segmented chain ganglia
Long pre and short post ganglionic neurons
Ganglia close to target.
state a neuromodulator used in the para and sympatheic nervous systems
para- VIP vasoactive intestinal polypeptide
sym- NPY neuropeptide Y
what is the only post ganglionic use of ACh in the sympathetic nervous system
Innovation of sweat glands is the only post ganglionic use of ACh in the sympathetic nervous system. This happens by altering switching of neurotransmitter in development.
explain parasympathetic innovation of the face
innovates iyris causing pupilary contraction
Parasympathetic nervous system innervates the lacrimal gland and the nasal mucosa regulating tears/crying
The Facial nerve VII – parasympathetic innervation of the Submandibular ganglion regulates secretions submandibular & sublingual salivary glands
The Glossopharyngeal nerve IX to otic ganglion for parotid gland – controls salivary secretion
