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Questions and Answers
What is the primary function of a neurotransmitter in synaptic transmission?
What is the primary function of a neurotransmitter in synaptic transmission?
- To trigger a response in the post-synaptic cell (correct)
- To inhibit the release of neurotransmitters
- To provide electrical signals between neurons
- To release ions into the synaptic cleft
What is the characteristic of electrical synapses?
What is the characteristic of electrical synapses?
- Found in the peripheral nervous system only
- Presynaptic and postsynaptic cells are separated by a narrow gap
- Impulses are transmitted through chemical neurotransmitters
- Connected by connexons with very close contact between cells (correct)
What type of receptors are formed by the acetylcholine receptor?
What type of receptors are formed by the acetylcholine receptor?
- Chemically gated ion channels
- Ligand-gated ion channels (correct)
- Voltage-gated ion channels
- Mechanically gated ion channels
What determines the effect of a neurotransmitter on the post-synaptic cell?
What determines the effect of a neurotransmitter on the post-synaptic cell?
What is the most common type of communication between neurons?
What is the most common type of communication between neurons?
What happens to the neurotransmitter after it has triggered a response in the post-synaptic cell?
What happens to the neurotransmitter after it has triggered a response in the post-synaptic cell?
What is the function of lipofuscin, a granular pigment that accumulates in cells?
What is the function of lipofuscin, a granular pigment that accumulates in cells?
What is the significance of neurofibrillary tangles and amyloid plaques in the brain?
What is the significance of neurofibrillary tangles and amyloid plaques in the brain?
What is the effect of a stimulating environment on synaptic plasticity?
What is the effect of a stimulating environment on synaptic plasticity?
What is the impact of aging on brain cells?
What is the impact of aging on brain cells?
What is the role of intellectual activity in delaying brain degeneration?
What is the role of intellectual activity in delaying brain degeneration?
What is the significance of the hippocampus in the context of brain aging?
What is the significance of the hippocampus in the context of brain aging?
What happens to the brain size as a person ages?
What happens to the brain size as a person ages?
What is the effect of serotonin uptake inhibitors on serotonin levels in synapses?
What is the effect of serotonin uptake inhibitors on serotonin levels in synapses?
What is the effect of acetyl choline esterase inhibitors on acetyl choline?
What is the effect of acetyl choline esterase inhibitors on acetyl choline?
What is the effect of L-DOPA on dopamine levels in Parkinson's patients?
What is the effect of L-DOPA on dopamine levels in Parkinson's patients?
What is the effect of opiates, such as morphine, on opiate receptors?
What is the effect of opiates, such as morphine, on opiate receptors?
What is the effect of ageing on the number of interconnections and synapses between cells?
What is the effect of ageing on the number of interconnections and synapses between cells?
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