Which of the Following Fiber Pathways Is Considered a Commissural

question 3

Multiple Choice

Which of the following fiber pathways is considered a commissural pathway?

• A) corpus callosum
• B) amygdalar commissure
• C) fornix
• D) internal capsule

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Definitions:

Intercalated Discs

Structures in cardiac muscle cells that facilitate the synchronized contraction of the heart by allowing the rapid passage of ions between cells.

Striations

The repeated ridges found in skeletal and cardiac muscle cells due to the organized arrangement of actin and myosin filaments, giving them a striped appearance.

Desmosomes

A type of cell junction made of protein that connects the cytoskeletons of adjacent cells in a tissue.

Intercalated Discs

Specialized connections between cardiac muscle cells that facilitate the synchronized contraction of the heart.