Question

Carotids artery supplies
A) Impure blood to liver
B) Impure blood to kidney
C) Oxygenated blood to the brain
D) Oxygenated blood to limb

Answer 1

The supply of blood from lungs to all parts of the bodies includes many different types of arteries and veins. The arteries supply the oxygenated blood from the lungs after purification to all parts of the body while the veins supply the impure blood to the lungs for purification.

Complete answer:
To answer this question, we should know about carotid arteries. The carotid arteries are the blood vessels found in the neck that supply blood to the face and brain. There are two types of carotid arteries:- left carotid arteries and right carotid arteries. Inside the neck they form each carotid artery branch into; the internal carotid artery that supplies blood to the brain and the external carotid artery that supplies blood to the neck and face. They are also made of three layers of tissue like the other arteries; the smooth innermost is called the intima layer, the muscular middle is called the media layer, and the outer layer is called adventitia. The widening of a carotid artery is termed as carotid bulb or carotid sinus found in the main point of the branch. The carotid sinus consists of sensors that help to maintain the blood pressure. We can feel the carotid artery pulse in our neck while pressing it through fingertips against the side of the windpipe.

The internal carotid artery is the important branch of the carotid artery, there are two internal carotid arteries one on each side of the neck. They are started from the carotid bifurcation, through the carotid sheath of the neck it enters to the skull through the external opening of the carotid canal. This artery is divided into seven segments and along the process they form many other branches also that finally divide into two terminals called middle cerebral arteries and anterior.

Thus, the correct answer is ‘C’. Oxygenated blood to the brain.

Note: If there is any blockage in the carotid arteries, it may cause many symptoms like; weakness in the face or limbs, trouble in understanding and speaking, trouble in eyesight, fell dizziness and balance loss, severe headache.