Norepinephrine Acts on the Heart By__________

question 18

Multiple Choice

Norepinephrine acts on the heart by__________ .

• A) causing a decrease in stroke volume
• B) causing threshold to be reached more quickly
• C) decreasing heart contractility
• D) blocking the action of calcium

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Definitions:

Tectorial Membrane

A structure located in the cochlea of the inner ear, playing a key role in the process of sound transduction to the auditory nerve.

Organ of Corti

The Organ of Corti is a structure located within the cochlea of the inner ear, containing hair cells responsible for converting sound vibrations into electrical signals.

Hair Cells

Sensory cells found in the inner ear that are essential for hearing and balance, responding to mechanical stimuli by converting them into electrical signals.

Organ of Corti

The Organ of Corti is a structure in the cochlea of the inner ear that contains hair cells, which convert sound vibrations into nerve impulses.