Adrenal Medulla

Which of the following hormones are secreted by the adrenal medulla?

• Epinephrine

• Norepinephrine

• Dopamine

• Aldosterone

• Androgen

The effect of adrenergic alpha-2 receptor stimulation includes:

• Decrease neurotransmitter release

• Decrease insulin secretion

• Vasoconstriction

• Vasodilation

• Increase heart rate

The effect of adrenergic beta-1 receptor stimulation includes:

• Chronotropic

• Vasodilation

• Dromotropic

• Thermogenesis

• Vasoconstriction

The effect of adrenergic beta-2 receptor stimulation includes:

• Vasodilation

• Thermogenesis

• Bronchodilation

• Lipolysis

• Glycogenolysis

The effect of norepinephrine on the cardiovascular functions include:

• Increased peripheral vascular resistance

• Increased systolic blood pressure

• Increased diastolic blood pressure

• Increased stroke volume

• Increased pulse pressure

Which of the following statements is correct regarding epinephrine as vasopressor?

• At low dose, it stimulates beta-1 and beta-2 receptors at equal strength

• At high dose, it stimulates alpha-1 and beta-1 receptors at equal strength

• At moderate dose, it causes increase in vascular resistance

• At low dose, there is a decrease in pulse pressure

• At moderate dose, there is an increase in systolic blood pressure

Which of the following is a presentation of phaeochromocytoma?

• Increased blood pressure

• Excessive sweating

• Increased heart rate

• Weight loss

• Increased blood glucose