Testing ANS #shorts (Part F)

The video tutorial explains the identification of a pre-ganglionic parasympathetic neuron originating from the brain stem and a post-ganglionic sympathetic neuron associated with norepinephrine. It further describes the process of bronchodilation, where epinephrine from the adrenal medulla binds to beta 2 adrenergic receptors, causing airway dilation.

Which type of neuron originates from the brain stem and is the first in its pathway?

• Post-ganglionic sympathetic neuron

• Pre-ganglionic parasympathetic neuron

• Sensory neuron

• Motor neuron

Which of the following is NOT a characteristic of a pre-ganglionic parasympathetic neuron?

• Originates from the brain stem

• Uses norepinephrine as a neurotransmitter

• Is the first neuron in its pathway

• Part of the parasympathetic nervous system

What neurotransmitter is associated with post-ganglionic sympathetic neurons?

• Serotonin

• Norepinephrine

• Dopamine

• Acetylcholine

Which neurotransmitter is released by post-ganglionic sympathetic neurons?

• Epinephrine

• GABA

• Norepinephrine

• Acetylcholine

What is the effect of epinephrine binding to beta-2 adrenergic receptors in the airway?

• Decreased respiratory rate

• Bronchodilation

• Increased mucus production

• Bronchoconstriction