Which of These Statements Does NOT Describe the Plateau Portion

question 25

Multiple Choice

Which of these statements does NOT describe the plateau portion of the O₂-Hb curve

• A)It is within the blood PO₂ range that exists at the pulmonary capillaries.
• B)It means that haemoglobin becomes almost nearly saturated in the lungs, unless the pulmonary capillary PO₂ falls below 60 mmHg.
• C)It is within the blood PO₂ range that exists at the systemic capillaries.
• D)It is the range that exists at the pulmonary capillaries.

---

Definitions:

Common Fibular Nerve

A nerve of the lower leg and foot that is responsible for the movement and sensation of the upper and lower leg, particularly the lateral and anterior portions.

Tibial Nerve

A branch of the sciatic nerve that passes down the lower leg and is responsible for innervating the muscles of the lower leg and foot.

Sciatic Nerve

The largest nerve in the human body, running from the lower back down through each leg, responsible for movement and sensation.

Radial Nerve

A nerve in the arm that supplies movement and sensation to the arm, forearm, and hand.