Which of the following is correct when a thrombus is in the first branch of the aortic arch?
Which of the following is correct when a thrombus is in the first branch of the aortic arch?
Which of the following is correct when a thrombus is in the first branch of the aortic arch?
Urinary\Immune\Cardiovascular Heart&Blood
Question | Answer |
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A thrombus (blood clot) in the first branch of the arch of the aorta would affect the flow of blood to the ________. | right side of the head and neck and right upper arm |
Cerebral blood flow is regulated by ________. | intrinsic autoregulatory mechanisms |
What does the arch of aorta do?
The aortic arch is the segment of the aorta that helps distribute blood to the head and upper extremities via the brachiocephalic trunk, the left common carotid, and the left subclavian artery. The aortic arch also plays a role in blood pressure homeostasis via baroreceptors found within the walls of the aortic arch.
What nerve travels under the arch of the aorta?
A branch of the vagus nerve, the recurrent laryngeal nerve, passes underneath the arch of aorta.
Which tunic of an artery is most responsible for maintaining blood pressure?
Tunica media
a) Tunica media The tunica media is the middle layer of the arteries and veins. It is comprised of smooth muscle and connective tissue. This tunic is thickest in the arteries and contraction of the smooth muscle in this layer reduces the diameter of the vessels, which increases the pressure within the vessel.
Which vessel does not branch off of the aorta?
The b) left common carotid artery will branch from the arch of the aorta while the a) right subclavian artery is not a direct branch of the aorta but rather is derived from the brachiocephalic artery (which branches from the arch of the aorta).
Is the aorta a vein or artery?
The aorta is the largest blood vessel in the body. This artery is responsible for transporting oxygen rich blood from your heart to the rest of your body. The aorta begins at the left ventricle of the heart, extending upward into the chest to form an arch.
Where does the arch of aorta begin and end?
The aortic arch is a continuation of the ascending aorta and begins at the level of the second sternocostal joint. It arches superiorly, posteriorly and to the left before moving inferiorly. The aortic arch ends at the level of the T4 vertebra.
Which tunic of an artery is most?
Tunica Media
Tunica Media It is generally the thickest layer in arteries, and it is much thicker in arteries than it is in veins. The tunica media consists of layers of smooth muscle supported by connective tissue that is primarily made up of elastic fibers, most of which are arranged in circular sheets.
What are the first blood vessels to branch from the aorta as it leaves the heart?
The first blood vessels to branch from the aorta are the coronary arteries.
What are the names of the three arteries branching off the aorta?
Three vessels come out of the aortic arch: the brachiocephalic artery, the left common carotid artery, and the left subclavian artery. These vessels supply blood to the head, neck, thorax and upper limbs.