NEURL-UA 100 Lecture Notes - Lecture 15: Secretion, Walter Bradford Cannon, Hypothalamus
28 Jan 2017
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Action potential releases neurotransmitter, neurotransmitter bind to receptors on the post synaptic cell, and then the neurotransmitters get reused by the reuptake mechanism b. Ie pancreas cell secretes insulin and then receptors which are directly to sensitive to the chemical in the immediate environment sense the increase concentration and inhibits the release of the chemical. The regulatory system and the secretory element are separated. Coupled someway through a gap junction or something a) iii. A secretory cell us separated by the target cell by the blood stream a) In the case of insulin it travels and binds to fat cells iv. Chemicals released into the urine at the level of the kidney, wolf pees on the tree, other wolf smells the pee c. Ducted- like pheromones have glands that have ducts directly into the kidney. Comparing neurotransmission and endocrine hormones i. ii. iii. 1st difference- target cells can be physically distant.
