Match Each Definition with the Correct Term

question 13

Multiple Choice

Match each definition with the correct term.
-carcinoma in situ

• A)process by which cancer spreads
• B)new cancer site caused by spreading process
• C)malignant tumor that occurs in epithelial tissue
• D)malignant tumor that arises from connective tissue
• E)malignant tumor in its original position

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Definitions:

Active Ingredient

The component of a medication, herb, or concoction that is biologically or pharmacologically responsible for its effects.

Inhibitory Neurotransmitters

Neurotransmitters that decrease the probability of the neuron firing action potentials, thereby reducing neural activity.

Excitatory Neurotransmitters

Chemical messengers in the nervous system that increase the likelihood that a neuron will fire an action potential.

Melatonin

A hormone produced by the pineal gland in the brain, responsible for regulating sleep and wake cycles.