The Muscular Action That Causes Air to Move into the Lungs

question 17

Multiple Choice

The muscular action that causes air to move into the lungs during inspiration is provided by

• A) the diaphragm.
• B) internal intercostal muscles.
• C) abdominal wall muscles.
• D) expiratory intercostal muscles.
• E) all of the above.

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Definitions:

Excitatory

Referring to neurotransmitters or neural pathways that increase the likelihood of a neuron firing an action potential, promoting neural activity.

Inhibitory

Refers to mechanisms or processes that suppress or reduce the activity of neurons or other cellular systems.

Axosomatic Synapses

Synaptic connections between the axon terminals of one neuron and the soma (cell body) of another, facilitating neuronal communication.

Cell Body

The part of a neuron that contains the nucleus and most of the cytoplasm and organells.