Which of the Following Is the First Step in Inhalation

question 44

Multiple Choice

Which of the following is the first step in inhalation?

• A)Phrenic nerve stimulation
• B)Activation of the NM receptors (neuromuscular junction of the phrenic nerve and diaphragm)
• C)Firing of the medullary inspiratory neurons
• D)Contraction of the diaphragm

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Definitions:

Axons

Long, slender projections of nerve cells (neurons) that transmit electrical impulses away from the neuron's cell body.

Auditory Route

A pathway in the brain that processes auditory information from the ears to the auditory cortex.

Cochlear Nucleus

An auditory brainstem structure where the cochlear nerve fibers synapse, playing a pivotal role in initial sound processing.

Medial Geniculate

Part of the thalamus involved in the auditory pathway, acting as a relay station for sound information to the auditory cortex.