Podcast
Questions and Answers
Which receptor does adrenaline directly stimulate?
Which receptor does adrenaline directly stimulate?
- α and β receptors (correct)
- Only β receptors
- Only α receptors
- Dopamine receptors
What is the fate of approximately 80% of adrenaline in the body?
What is the fate of approximately 80% of adrenaline in the body?
- Excretion in urine as VMA
- Distribution to all tissues except CNS
- Re-uptake (correct)
- Metabolism by MAO and COMT
What effect does adrenaline have on the respiratory system?
What effect does adrenaline have on the respiratory system?
- No effect on the respiratory system
- Increased respiratory rate only
- Bronchoconstriction and bronchial congestion
- Bronchodilatation and bronchial decongestion (correct)
Where is adrenaline metabolized in the body?
Where is adrenaline metabolized in the body?
What effect does adrenaline have on the urinary system?
What effect does adrenaline have on the urinary system?
Which type of adrenoceptor is almost inhibitory and acts as a presynaptic receptor in both central sympathetic neurons and peripheral nerves?
Which type of adrenoceptor is almost inhibitory and acts as a presynaptic receptor in both central sympathetic neurons and peripheral nerves?
Which adrenoceptor type is responsible for increasing renin release in the kidney and has postsynaptic and presynaptic actions at adrenergic nerve terminals?
Which adrenoceptor type is responsible for increasing renin release in the kidney and has postsynaptic and presynaptic actions at adrenergic nerve terminals?
Which receptor type is involved in relaxation of smooth muscles in blood vessels, bronchi, and uterus?
Which receptor type is involved in relaxation of smooth muscles in blood vessels, bronchi, and uterus?
Which receptor type is almost excitatory and plays a role in piloerection, sweat gland activity, and contraction of the iris (mydriasis)?
Which receptor type is almost excitatory and plays a role in piloerection, sweat gland activity, and contraction of the iris (mydriasis)?
Which receptor type is involved in decreasing insulin release and lipolysis?
Which receptor type is involved in decreasing insulin release and lipolysis?
