Which Statement Is NOT True of Human Nails

question 49

Multiple Choice

Which statement is NOT true of human nails?

• A)They are formed in follicles.
• B)They protect the ends of the fingers and toes from mechanical injury.
• C)They enable the fingers to pick up small objects.
• D)The visible part of the nail is made of collagen.

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Definitions:

Dopamine Synthesis

The biochemical process by which the brain produces the neurotransmitter dopamine, a crucial substance involved in movement, motivation, and the experience of pleasure.

L-dopa

A precursor to dopamine used in the treatment of Parkinson's disease to increase dopamine levels in the brain.

Inhibitory Neurotransmitter

Chemical substances released by neurons in the brain to reduce the activity of other neurons, playing a key role in the modulation of neural circuits.

Forebrain

The anterior part of the brain, including the cerebral hemispheres, the thalamus, and the hypothalamus, responsible for complex behavioral and cognitive processes.