Approximately How Many Cells Are in the Human Brain

question 133

Multiple Choice

Approximately how many cells are in the human brain?

• A)10 million
• B)50 million
• C)1 billion
• D)100 billion

---

Definitions:

Norepinephrine

A neurotransmitter involved in the body's response to stress, increasing heart rate and blood pressure among other functions.

Spillover Effect

A phenomenon where emotions or behaviors from one situation influence or 'spillover' into another situation.

Right Frontal Lobe

The right-side section of the frontal part of the brain, involved in controlling emotions, making decisions, and regulating social behavior.

Left Frontal Lobe

Refers to the front part of the left hemisphere of the brain, associated with reasoning, motor skills, higher level cognition, and expressive language.