Protons and Carbon Dioxide Are Linked in the CNS Because

question 33

Multiple Choice

Protons and carbon dioxide are linked in the CNS because

• A) protons cannot cross the blood-brain-barrier, while carbon dioxide can.
• B) carbon dioxide cannot cross the blood-brain-barrier, while protons can.
• C) bicarbonate cannot cross the blood-brain-barrier, while protons can.
• D) protons cannot cross the blood-brain-barrier, while bicarbonate can.
• E) water cannot cross the blood-brain-barrier.

---

Definitions:

Pulse Pressure

The difference between systolic and diastolic blood pressure readings, indicating the force that the heart generates each time it contracts.

Orthostatic Hypotension

A form of low blood pressure that happens when standing up from sitting or lying down, causing dizziness or fainting.

Hypotension

A medical condition characterized by abnormally low blood pressure, which can lead to symptoms such as dizziness, fainting, and, in severe cases, shock.

Systolic Blood Pressure

The pressure in the arteries when the heart beats and fills them with blood, the higher of the two blood pressure readings.