When a Drug Passes in a Gap Between Two Adjacent

question 15

Multiple Choice

When a drug passes in a gap between two adjacent cells, this is called

• A) transcellular transport
• B) vapor intrusion
• C) paracellular transport
• D) active transport
• E) None of the above

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Definitions:

Complex Adaptations

Traits that have evolved through many intermediate stages and provide a significant advantage to an organism in a particular environment.

Spinal Canal

The hollow space within the vertebrae through which the spinal cord passes.

Notochord

A notochord is a flexible, rod-shaped structure found in the embryos of all chordates. Notochords served as the first “backbones” in early chordates, and in extant vertebrates the embryonic notochord becomes part of the vertebral column.

Primitive Brain

An early stage in the evolution of the brain, characterized by basic structures that control fundamental life functions, seen in lower animals.