If a Person Were Unable to Produce Much of This

question 14

Multiple Choice

If a person were unable to produce much of this substance, the gastric juices might destroy the stomach lining.

• A) chyme
• B) HCl
• C) mucus
• D) pepsin

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Definitions:

Local Potential

Depolarization that is not propagated and that is graded or proportional to the strength of the stimulus.

Summate

To add together or accumulate to a total; in physiology, refers to the additive effect of repeated stimuli on a nerve or muscle.

Gray Matter

Regions of the brain and spinal cord with a high concentration of cell bodies, dendrites, and axon terminals of neurons, distinguished from white matter.

Cortex

The outer layer of the cerebrum in the brain, involved in many advanced brain functions, including memory, attention, perceptual awareness, and language.