Answer:
True
Explanation:
The femoral artery is the major blood vessel supplying blood to your legs. It's in your upper thigh, right near your groin.
The receptors located in the heart, aortic arch, and carotid sinuses that trigger autonomic reflexes in response to fluctuations in blood pressure are known as Baroreceptors.
Baroreceptors are present in the carotid sinus and the aortic arc and regulate the blood pressure levels in the body. Whenever blood pressure increases or decreases the stretch receptors present in the blood vessels send signals to the brain.
The brain interprets them and send signals to other parts of the body like kidney and heart. The kidney and heart releases enzyme like erythropoietin and atrial natriuretic factor respectively that regulate the blood pressure accordingly.
To know more about baroreceptors refer to the link below
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Answer:
Alzheimer's disease is not an inevitable part of aging. Occasional forgetfulness is a normal part of aging, but AD is a serious condition that can cause significant cognitive decline. Symptoms usually start off mild and worsen over time as the disease progresses.
Explanation:
Answer:
The answer to the statement: At rest, most of the body´s blood supply resides in the pulmonary loop, would be, B: False.
Explanation:
The circulatory system never stops working. Pumping of blood, transportation of oxygen, nutrients and water to and from tissues is a process that does not end, even during sleep. The only moment when this process does not happen, is in death. However, a good question is, where does the blood go, or stay, when the body is not active, like for example, during sleep. And the answer is that most of it will rest on the systemic veins and venules and will slowly circulate back to the heart, but at a much lower rate than when the body activates itself. However, what is not true is that blood will reside mostly in the pulmonary loop, because this loop does not have the capacity to store that much blood.
Once infected cells have sensed an invading pathogen, they secrete molecules called cytokines and chemokines. Cytokines such as interferons are molecules that signal neighbouring cells and induce an antiviral state in them. These cells are then primed to resist an infection with the invading virus.
