Immunology is the study of diseases associated with excesses and deficiencies of the immune system.
<h3>What is immune system?</h3>
A network of biological processes called the immune system guards an organism against disease. It recognizes and reacts to a wide range of pathogens, separating them from the organism's own healthy tissue, including viruses, parasitic worms, cancer cells, and things like wood splinters. There are two main immune system subsystems seen in many species. The innate immune system responds to a variety of events and stimuli in a predetermined way. The adaptive immune system learns to recognize chemicals it has previously met and responds to each stimulus in a way that is specific to that stimulus. Both rely on molecules and cells to carry out their respective tasks.
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Answer:
Explanation:
Skeletal muscle. Skeletal muscles are the only muscles that can be consciously controlled. ...
Smooth muscle. Smooth muscle lines the inside of blood vessels and organs, such as the stomach, and is also known as visceral muscle. ...
Cardiac muscle.
LDL is the primary contributor to arterial-clogging plaque. HDL is effective at removing excess cholesterol from the blood.
Heart diseases are the leading cause of death in a number of countries. Atherosclerosis causes the constriction of the blood vessels that supply the heart with blood, leading to heart disease. Gradually, fatty deposits (or plaque) accumulate on the interior of artery walls, reducing the space through which blood may travel to the heart.
Cholesterol is an essential component of all cell membranes and is necessary for numerous metabolic processes. It is produced in the liver by the body. Cholesterol-containing blood lipids (fats) include high-density lipoprotein (HDL) and low-density lipoprotein (LDL). LDL ('bad') cholesterol can cause the formation of plaque in the arteries, whereas HDL ('good') cholesterol helps eliminate cholesterol from the body and makes it more difficult for plaque to form.
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