Answer:
Explanation:
Left coronary artery - divides into two branches (the circumflex artery and the left anterior descending artery). Left anterior descending artery (LAD) - supplies blood to the front and bottom of the left ventricle and the front of the septum. Pulmonary veins - bring oxygen-rich blood back to the heart from the lungs.
Answer:
The correct answer is A.
Explanation:
B-lympocytes participate in antibody-mediated immunity (also called humoral immunity)- They activate in the lymph nodes and/or in lymphatic organs when they are exposed to an antigen.
Also T-lymphocytes participate in cell-mediated immunity, they release different types of cytokines when they are exposed to an antigen. Macrophages and natural killer cells also participate in this type of immunity.
Answer:
The correct answer to the question: An abnormal sound (murmur) due to narrowing or stenosis of the mitral valve might be heard during:____, would be, A: Diastole.
Explanation:
It is first important to know that a murmur comes from the sound the blood makes as it passes either through a hardened tissue, like is the case of stenosis of a valve, or because it leaks back from where it came, due to regurgitation, because the valve is defective and cannot close properly. During the cardiac cycle, there is a process of systole, and of diastole, that ensure the filling and expulsion of the blood inside the heart towards the body, and from the body into the heart, so that a constant flow is ensured. In the process of filling and emptying, two sets of valves, the mitral and tricuspid, and the aortic and pulmonary, open and close to allow blood flow towards the different chambers of the heart, and out into the blood vessels of the body, and prevent the blood from returning towards where it came. In the case of mitral stenosis, which is the toughening of the mitral valve of the heart, the blood flowing through it makes a murmuring sound that can be caught up through a stethoscope. This sound is prominent during diastole, and that is why medically this murmur is known as a diastolic murmur.
good health
Explanation:
if we store medicinal plants it helps the plants to grow well
<h3><u>
Diabetes mellitus and Diabetes Insipidus
</u></h3>
Explanation:
Diabetes mellitus and diabetes insipidus are both metabolic endocrine diseases caused due to hormonal imbalance.
<u>Etiology</u><u>:
</u>
<u>Organ and hormone involved</u><u>: </u>
Diabetes mellitus occurs due to inefficiency of the pancreas to produce sufficient amount of the hormone insulin or lack of insulin action resulting in uncontrolled blood glucose levels.
Diabetes insipidus occurs due to inefficiency of the pituitary glands to produce sufficient amount of the antidiuretic hormone vasopressin or lack of vasopressin action resulting in uncontrolled water metabolism.
<u>Signs and symptoms:
</u>
Diabetes mellitus results in increasing blood glucose levels, polyuria and nocturia, polydipsia, polyphagia, fatigue and various other complications affecting eyes, kidneys, nervous system, and heart as the disease progresses.
Diabetes insipidus results in increasing water levels due kidneys excreting large amounts of diluted urine leading to polyuria, polydipsia, and excessive dehydration and fatigue.
<u>Diagnostic/lab tests and results:
</u>
Diabetes mellitus is tested by testing blood glucose levels.
Diabetes insipidus is tested by testing water deprivation or vasopressin level test/the 24-hour urine for urine osmolality levels along with serum electrolyte level tests.
These tests are based on response to vasopressin, urine concentration abilities, urine osmolality, and electrolyte levels of the blood.
