Podcast
Questions and Answers
What is the primary transmitter at postganglionic sympathetic sites?
What is the primary transmitter at postganglionic sympathetic sites?
- Dopamine
- Serotonin
- Adrenaline
- Noradrenaline (correct)
Which endogenous catecholamine is secreted by the adrenal medulla?
Which endogenous catecholamine is secreted by the adrenal medulla?
- Serotonin
- Adrenaline (correct)
- Acetylcholine
- Dopamine
Which enzyme inhibition can result in the depletion of catecholamines?
Which enzyme inhibition can result in the depletion of catecholamines?
- DOPA decarboxylase inhibition
- Acetylcholinesterase inhibition
- Tyrosine hydroxylase inhibition (correct)
- Monoamine oxidase inhibition
What is the rate-limiting enzyme in catecholamine biosynthesis?
What is the rate-limiting enzyme in catecholamine biosynthesis?
Which enzyme can form serotonin from 5-hydroxytryptophan?
Which enzyme can form serotonin from 5-hydroxytryptophan?
In which areas of the brain does dopamine act as a major transmitter?
In which areas of the brain does dopamine act as a major transmitter?
According to Ahlquist's classification, how many types of adrenergic receptors were identified based on potency rank order?
According to Ahlquist's classification, how many types of adrenergic receptors were identified based on potency rank order?
What is the main difference between the synthesis of NA and Adrenaline?
What is the main difference between the synthesis of NA and Adrenaline?
Which subtype of adrenergic receptors mediates lipolysis and induces thermogenesis located on adipocytes?
Which subtype of adrenergic receptors mediates lipolysis and induces thermogenesis located on adipocytes?
What led to the subdivision of beta receptors into beta1 and beta2 subtypes?
What led to the subdivision of beta receptors into beta1 and beta2 subtypes?
How many subtypes of alpha1 receptors have been identified through molecular cloning?
How many subtypes of alpha1 receptors have been identified through molecular cloning?
What characterizes the present classification of prejunctional alpha receptors into alpha1 and alpha2?
What characterizes the present classification of prejunctional alpha receptors into alpha1 and alpha2?
What is the effect of Phenylephrine on the release of insulin?
What is the effect of Phenylephrine on the release of insulin?
What is the pharmacological effect of adrenaline on conducting tissue?
What is the pharmacological effect of adrenaline on conducting tissue?
Which area experiences decongestion of mucosa/submucosa due to adrenergic action?
Which area experiences decongestion of mucosa/submucosa due to adrenergic action?
What is the primary effect of β1 adrenergic receptors on the heart?
What is the primary effect of β1 adrenergic receptors on the heart?
