01:119:116 Lecture Notes - Lecture 12: Endocrine System, Codocyte, Sildenafil
12 Jun 2017
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Hormone is an internal signal for a chemical. A. c)travels through body bathing all cells binds to a target cell. Target cell = any cell that has a receptor for the hormone. A. e)receptor cell: has large glycoproteins/proteins on surface of cell (a. e. 1) Cell receive little signal = receptor up: creates more receptors (gets better at hearing and receiving the signal) B. a)types of communication are classified into 5 paths (b. a. 1) Endocrine system: kind of slow and general (i could send signal to entire body and received by two cells and each one does something different) (b. a. 2) Paracrine signal: doesn"t travel through blood system, only travels through space between two cells short distance, localized (b. a. 2. i) ex: when you get cut: cells near each other send signal to each other to clot (b. a. 3) Autocrine signal: cell talks to itself (b. a. 3. i) cell identifies an attacker: secretes chemical that is received by itself to create bodies to destroy the attacker (b. a. 4)
