Homonymous Hemianopia Occurs When

question 37

Multiple Choice

Homonymous hemianopia occurs when:

• A) the optic nerve is cut behind the eye.
• B) the optic chiasm is cut.
• C) the lateral geniculate is cut.
• D) the optic nerve and the lateral geniculate are cut.

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Definitions:

Bipolar Neurons

are specialized neurons with one axon and one dendrite, commonly found in sensory systems like the retina of the eye.

Dendrite

A branched extension of a neuron that receives impulses from other cells and transmits them to the cell body.

Axon

The long, slender projection of a neuron that conducts electrical impulses away from the neuron's cell body towards other neurons or muscles.

Nodes of Ranvier

Gaps in the myelin sheath along a nerve fiber, where the axonal membrane is exposed to the extracellular space, facilitating rapid signal transmission.