PSI Barbering Practice Exam

In terms of blood circulation, what role do the common carotid arteries play?

1. They drain blood from the head

2. They supply oxygenated blood to the face

3. They regulate blood pressure

4. They circulate lymphatic fluid

The correct answer is: They supply oxygenated blood to the face

The common carotid arteries are vital in supplying oxygenated blood to the face and neck. These arteries branch into the internal and external carotid arteries, with the external carotid artery providing blood to the face, jaw, neck, and scalp. This flow of oxygen-rich blood is crucial for various facial functions, including skin health, muscle activity, and overall appearance. Good blood circulation from the carotid arteries ensures that the tissues receive the necessary oxygen and nutrients to function effectively. In contrast to the correct answer, the common carotid arteries do not drain blood from the head, regulate blood pressure, or circulate lymphatic fluid. The drainage of blood from the head is primarily handled by the internal jugular veins, blood pressure regulation is chiefly managed by baroreceptors located in the carotid sinus, and lymphatic circulation is a separate system involving lymphatic vessels and nodes that work differently from blood circulation.