Pupil Diameter Would Be Increased by

question 39

Multiple Choice

Pupil diameter would be increased by

• A)contraction of the circular muscles.
• B)contraction of the ciliary body.
• C)contraction of the superior rectus muscle.
• D)contraction of the radial muscles.

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Definitions:

Heroin

An opioid drug made from morphine, a natural substance taken from the seed pod of various opium poppy plants.

Neurons

Electrically excitable cells that communicate with other cells via specialized connections called synapses, functioning as the basic working unit of the brain.

Hippocampus

A region of the brain crucial for learning and memory, located within the temporal lobes.

Prefrontal Area

A region at the front of the frontal lobe in the brain, associated with complex cognitive behavior, personality expression, and decision making.