Which of the Following Is a Characteristic of a Stable

question 36

Multiple Choice

Which of the following is a characteristic of a stable external environment?

• A)an inflexible structure
• B)constant change
• C)decentralized authority
• D)low uncertainty

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Definitions:

Lumen

The inside space of a tubular structure, such as a blood vessel or intestine.

Carotid Sinus

A dilated area at the base of the internal carotid artery that contains receptors to help regulate blood pressure.

Baroreceptors

Pressure-sensitive sensory neurons located mainly in the carotid sinus and aortic arch, which help regulate blood pressure.

Aortic Arch

The curved portion at the top of the aorta, which gives rise to the major arteries supplying the head, neck, and upper limbs.