Capillaries Consist of Only This Layer

question 8

Multiple Choice

Capillaries consist of only this layer.

• A) tunica externa
• B) tunica media
• C) subendothelial layer
• D) tunica intima
• E) vasa vasorum

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Definitions:

Cerebellum

A part of the hindbrain involved in muscle coordination and balance.

Pons

A part of the brain located in the brainstem, critical for relaying messages between the brain and the spinal cord and regulating sleep.

Reticular Formation

A network of nerves in the brainstem that plays a key role in controlling arousal and alertness.

Afferent Neurons

Neurons that transmit messages from sensory receptors to the spinal cord and brain; also called sensory neurons.