PHYSIOLOGY
NEUROTRANSMISSION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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hormones excreted by the endocrine glands
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secretions of the exocrine glands
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drugs used in the therapeutic treatment of memory disorders
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enzymes involved with the degradation of interneuron signals
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neurotransmitters that excite or inhibit a neural signal across a synapse
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Detailed explanation-1: -Neurotransmitters that act as neuromodulators include acetylcholine, dopamine, serotonin, histamine, and cannabinoids. Some neurotransmitters, such as acetylcholine and dopamine, can create both excitatory and inhibitory effects depending upon the type of receptors that are present.
Detailed explanation-2: -Dopamine has effects that are both excitatory and inhibitory. It is associated with reward mechanisms in the brain.
Detailed explanation-3: -A neurotransmitter influences a neuron in one of three ways: excitatory, inhibitory or modulatory. An excitatory transmitter promotes the generation of an electrical signal called an action potential in the receiving neuron, while an inhibitory transmitter prevents it.
Detailed explanation-4: -The neurotransmitter acetylcholine is excitatory at the neuromuscular junction in skeletal muscle, causing the muscle to contract. In contrast, it is inhibitory in the heart, where it slows heart rate.