Each Human Kidney Contains About a Million ______________, Which Are

question 4

Multiple Choice

Each human kidney contains about a million ______________, which are the tubular functional units of the kidney.

• A)ureters
• B)nephrons
• C)nephridia
• D)flame cells

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Definitions:

Neurotransmitter GABA

Gamma-Aminobutyric Acid: an inhibitory neurotransmitter in the brain, involved in reducing neuronal excitability.

Frontal Lobes

The region of the brain located at the front of each cerebral hemisphere, involved in complex cognitive functions, including behavior, personality, and voluntary movement.

Dopamine

A neurotransmitter that plays a major role in reward-motivated behavior, as well as movement and emotional responses.

Reticular Formation

A network of neurons located in the brainstem involved in regulating arousal, consciousness, and the sleep-wake cycle.