BIOL 2410 Lecture Notes - Lecture 25: Adrenal Medulla, Parasympathetic Nervous System, Preganglionic Nerve Fibers

• School: University of Manitoba
• Department: Biological Sciences
• Course: BIOL 2410
• Professor: Diana Mlinar

Document Summary

Neuron physiology xii - the autonomic nervous system. Certain blood vessels and smooth muscle of some organs. In the parasympathetic nervous system acetylcholine is rapidly broken down by acteylcholinesterase. In the sympathetic nervous system norepinephrine is not removed form the synapse as rapidly as ach in the psns. Actively be taken back into the presynaptic neuron. Broken down by monoamine oxidase (mao) located on the neuronal plasma membrane. Basically does the same thing as acetylcholine. The adrenal gland (endocrine gland) atop the kidney has two regions: The adrenal medulla: receives inputs form pre-ganglionic sympathetic neurons. Release epinephrine into the blood in response to activation. Also produces norepinephrine and cortisone, aldosterone (urine and blood volume) The adrenal gland is the junction between the nervous system and the endocrine system. Decreases motility and secretion alpha 1 beta 2 increases motility and secretion. Increases renin secretions beta1 increases enzyme secretions stimulates insulin secretion. Urinary bladder urinary retention alpha1 beta2 release of urine.