Podcast
Questions and Answers
What type of nerve endings are responsible for detecting pain stimuli?
What type of nerve endings are responsible for detecting pain stimuli?
- Free nerve endings (correct)
- Sensory nerve endings
- Motor nerve endings
- Autonomic nerve endings
What is the role of ion channels in nociceptor terminals?
What is the role of ion channels in nociceptor terminals?
- To depolarize the neurons (correct)
- To hyperpolarize the neurons
- To inhibit neural transmission
- To enhance synaptic plasticity
What is the effect of local anaesthetics on nociceptors?
What is the effect of local anaesthetics on nociceptors?
- They block nociceptor activity (correct)
- They enhance nociceptive transmission
- They stimulate neural regeneration
- They have no effect on nociceptors
What is the function of nociceptors in the skin?
What is the function of nociceptors in the skin?
What type of stimuli can activate ion channels on nociceptor terminals?
What type of stimuli can activate ion channels on nociceptor terminals?
Where are nociceptors typically found?
Where are nociceptors typically found?
What is the purpose of ion channels on nociceptor terminals?
What is the purpose of ion channels on nociceptor terminals?
What happens when local anaesthetics are applied to nociceptors?
What happens when local anaesthetics are applied to nociceptors?
What type of neurons are activated by various stimuli?
What type of neurons are activated by various stimuli?
What is the result of depolarization of nociceptor neurons?
What is the result of depolarization of nociceptor neurons?
Study Notes
Nociceptors
- Nociceptors are free nerve endings in the skin
- Nociceptor terminals contain ion channels that can be activated by various stimuli
- Activation of these ion channels acts as molecular transducers, depolarizing the neurons
- Depolarization of neurons triggers nociceptive impulses along the pain pathways
- Local anaesthetics, such as lidocaine, can block nociceptor activation
Nociceptors
- Nociceptors are free nerve endings in the skin
- Nociceptor terminals contain ion channels that can be activated by various stimuli
- Activation of these ion channels acts as molecular transducers, depolarizing the neurons
- Depolarization of neurons triggers nociceptive impulses along the pain pathways
- Local anaesthetics, such as lidocaine, can block nociceptor activation
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Description
This quiz covers the structure and function of nociceptors, including their activation, ion channels, and role in pain pathways. Learn about how local anaesthetics block nociceptors and more.
