Term
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Definition
| A receptor protein that forms part of a ligand-gated ion channel, so that binding of ligand to the receptor causes opening of the channel permitting ions to flow through |
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Term
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Definition
| a cell receptor that when activated by binding of a ligand, triggers changes in cell metabolism via intracellular second messengers |
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Term
| What are the common neurotransmitters? |
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Definition
- Most common excitatory- Glutamate (+)
- Most common inhibitory- GABA (-)
- Acetylcholine (ACH)
- Serotonin (5-HT)
- Norephinpherine
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Term
| What are the initial precursors for dopamine, norepinepherine, epinepherine, serotonin, and acetylcholine? |
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Definition
Acetyl coenzyme A Phenylalnine
l l
Acetylcholine dop, norep, ep
Tryptophan
l
Serotonin |
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Term
| Can a neuron release more than 1 neurotransmitter? |
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Definition
Yes.
Example: A cetylcholine-glutamate co-release |
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Term
| For dopamine and seratonin what are they involved in? |
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Definition
Dopamine-reward-nucleus accumbens,natural (food&sex) artificial (drugs of abuse); movement; and disorders
Serotonin- depression and sleep |
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Term
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Definition
| A drug that mimics or increases the effects of a neurotransmitter |
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Term
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Definition
| A drug that blocks the effects of a neurotransmitter |
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Term
| How are hormones transported around the body? |
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Definition
| They are released into blood and travel until they reach a cell with a receptor they fit in |
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Term
| What types of receptors do hormones use? |
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Definition
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Term
| What brain region controls hormone release from the pituitary gland? |
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Definition
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Term
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Definition
(synthesizes and secretes)
releases hormones from hypothalamus to anterior pituitary -> anterior pituitary releases hormones to anterior pituitary releases hormones |
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Term
| Posterior pituitary gland |
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Definition
(stores and releases)
releases oxytocine and vasopressin |
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Term
What are some other glands in the body that pituitary hormones influence?
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Definition
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