Question

Mcq receptors in wall of arch of aorta and carotid artery are mainly sensitive for

Answer 1

sensitive to changes in arterial carbon dioxide, oxygen, and pH.

Answer 2

Answer:

Changes in$pO_{2}$, $pCO_{2}$, and $pH$ can be detected by receptors in the aortic arch and carotid artery.

Explanation:

The peripheral chemoreceptors are found in the carotid and aortic bodies.

• Aortic body chemoreceptors are found between the arch of the aorta and the pulmonary artery,
• Carotid body chemoreceptors are found near the bifurcation of the common carotid arteries.

Central chemoreceptors (medullary neurons) and peripheral chemoreceptors (carotid and aortic bodies) predominantly govern respiratory activity. This is a critical mechanism for keeping arterial blood $pO_{2}$, $pCO_{2}$, and$pH$within physiologically acceptable levels.