What Four Elements Make Up Approximately 96% of the Total

question 30

Multiple Choice

What four elements make up approximately 96% of the total human body mass?

• A) C, N, O, P
• B) C, O, Ca, N
• C) Mg, Cu, Fe, N
• D) C, O, N, H₂O
• E) C, H, N, O

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Definitions:

Myelination

The process of forming a myelin sheath around the axons of neurons to insulate them and increase the speed of neural signal transmission.

Neurotransmitter

A brain chemical that carries information from the axon of a sending neuron to the dendrites of a receiving neuron.

Corpus Callosum

A wide band of nerve fibers connecting the left and right hemispheres of the brain, facilitating interhemispheric communication.

Cognition Deterioration

The decline in cognitive functions such as memory, problem-solving, and attention.