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Extra Credit Answers: Psychology

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Ryley Hughes
Psychology 503 Extra Credit Answers

A. (1) The interaction between THC and the cannabinoid receptor affects learning, coordination, problem solving and short-term memory. Basically, this interaction causes the communication between cells to slow down. It is an agonist at cannabinoid receptors. When THC binds to a neuron it causes the postsynaptic neuron to be hyperpolarized because THC is an inhibitory neurotransmitter. The natural agonist for this receptor is anandamide, which is metabotropic. The physiological consequences of THC binding to those receptors include an increase in heart rate, bloodshot eyes, dry mouth, the munchies, low testosterone, suppression of immune system, analgesia, decrease in body temperature and luteinizing hormone suppression. …show more content…
(4) Structure B is a synaptic vesicle. Synaptic vesicles store various neurotransmitters that are usually released at the synapse.
(5) When the neurotransmitter binds to the receptors at C, the post-synaptic cell becomes depolarized. Ionotropic receptors work really fast and involve no second messengers. These receptors also have an ion channel that will then open in response to binding. Metabotropic receptors are slow and activate second messengers. They also don’t have an ion channel.

C. (6)

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