PSYB45H3 Study Guide - Vasopressin, Endoplasmic Reticulum, Beta Cell
Document Summary
Chapter 3: cell signaling and endocrine regulation hormones, electrical signals, and neurotransmitters) signaling. Cell signaling: signaling cell target cell: using a chemical signal (which can be amino acids, Adjacent cells use aqueous pores (gap junctions) b/ most cells, not next to one another use indirect cell: indirect= when one cell releases chemicals into extracellular fluid target cell. At target cell it binds to receptor activating signal transduction pathways. Signals: exocrine = signaling btw systems like insulin being sent to the stomach. Peptides: allow for hydrophilic chemical messengers/molecules to pass through the lipid bilayer of cells, they are protein complexes that pass to adjacent cells, made up of connexin or innexin creating a connexon. The neurotransmitters use a region called synapse btw signaling and target cell that allows for short distance communication in the nervous system. 6 main classes of chemical messengers: peptides, steroids, amines, lipids, purines, and. Hormones are only consisted of: peptides, steroids, amines.
