Psych 115 Midterm 1 Ucla |108 Questions| With Correct Answers.

What are the 3 types of opioid receptors? {Ans: 1. Mu - causes analgesia, euphoria, addiction - Endo Ag: endorphins, enkaphalins -Exo Ag: morphine, fentanyl -Exo Anta: naloxone, naltrexone, oxycodone, hydrocodone 2. Kappa - analgesia, sedation, dysphora - Endo Ag: dynorphins - Exo Anta: oxycodone, nealtrexone 3. Delta - analgesia - Endo Ago: endorphins, enkaphalins - Exo Ag: morphine, codeine, hydrocodone}What is the difference between active and passive transport? {Ans: Active - required ATP an pushes ions in the direction it wants REGARDLESS OF DRIVING FORCES Passive - ion channels open or close to allow ions to flow according to electrochemical gradient in direction of driving force}What is passive propagation and where does it occur? {Ans: It happens in axons without active channels and the AP propagates very fast but not very far}What are the two main families of dopamine receptors? {Ans: 1) D1 family: G-proteins are couple to alpha subunit that excite production of 2nd messenger (cAMP) by adenylyl cyclase 2) D2 family: G-protein couple to alpha subunit that inhibit production of 2nd messenger cAMP by adenylyl cyclase}How do EPSPs work? {Ans: Excitatory Post Synaptic Potentials - when the excitatory neurotransmitter (glutamate or acetylcholine)