ANS 1

Remembering: Which of the following is not a catecholamine neurotransmitter?

• Adrenaline
• Noradrenaline
• Dopamine
• Serotonin

Remembering: Which of the following enzymes is responsible for the synthesis of catecholamines?

• Phenylalanine hydroxylase
• Tyrosine hydroxylase
• L-aromatic amino acid decarboxylase
• Monoamine oxidase

Remembering: Which of the following enzymes is responsible for the breakdown of catecholamines?

• Phenylalanine hydroxylase
• Tyrosine hydroxylase
• L-aromatic amino acid decarboxylase
• Monoamine oxidase

Understanding: Which of the following adrenergic receptors stimulates smooth muscle contraction and increases heart rate?

• Alpha 1
• Alpha 2
• Beta 1
• Beta 2

Understanding: Which of the following adrenergic receptors stimulates smooth muscle relaxation and decreases heart rate?

• Alpha 1
• Alpha 2
• Beta 1
• Beta 2

Understanding: Which of the following adrenergic receptors is responsible for vasoconstriction?

• Alpha 1
• Alpha 2
• Beta 1
• Beta 2

Analyzing: Adrenergic agonists can be classified as either selective or non-selective. Selective agonists have a higher affinity for which of the following adrenergic receptors?

• Alpha 1
• Alpha 2
• Beta 1
• Beta 2

Analyzing: Adrenergic antagonists can be classified as either selective or non-selective. Selective antagonists have a higher affinity for which of the following adrenergic receptors?

• Alpha 1
• Alpha 2
• Beta 1
• Beta 2

Evaluating: Which of the following statements about adrenergic agonists and antagonists is true?

• Agonists and antagonists have opposite effects on adrenergic receptors
• Agonists and antagonists have similar effects on adrenergic receptors
• Agonists only have effects on alpha receptors, while antagonists only have effects on beta receptors
• None of the above

Creating: A patient is prescribed an adrenergic agonist for treatment of their hypertension. Which of the following is a potential side effect of this medication?

• Decreased heart rate
• Decreased blood pressure
• Increased heart rate
• Increased blood pressure