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ACE inhibitor
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ACE inhibitorA drug that inhibits ACE (angiotensin converting enzyme) which is important to the formation of angiotensin II. Angiotensin II causes arteries in the body to constrict and thereby raises the blood pressure. ACE inhibitors lower the blood pressure by inhibiting the formation of angiotensin II. This relaxes the arteries. Relaxing the arteries not only lowers blood pressure, but also improves the pumping efficiency of a failing heart and improves cardiac output in patients with heart failure. ACE inhibitors are therefore used for blood pressure control and congestive heart failure.
RELATED TERMS--------------------------------------
Angiotensin
A family of peptides (smaller than proteins) that act as vasoconstrictors to narrow blood vessels.
Arteries
Blood vessels that carry blood away from the heart to the arms, legs, head, body and organs.
Blood
The life-maintaining fluid which is made up of plasma, red blood cells (erythrocytes), white blood cells (leukocytes), and platelets; blood circulates through the body's heart, arteries, veins, and capillaries; it carries away waste matter and carbon dioxide, and brings nourishment, electrolytes, hormones, vitamins, antibodies, heat, and oxygen to the tissues.
Heart
The hollow, muscular organ responsible for pumping blood through the circulatory system.
Cardiac
Pertaining to the heart.
SIMILAR TERMS--------------------------------------
ACE (angiotensin converting enzyme)
The angiotensins are peptides (substances smaller than proteins) that act as vasoconstricting agents (causing blood vessels to narrow). Narrowing the diameter of the blood vessels sends up the blood pressure. ACE converts angiotensin to its activated form (called angiotensin II) enabling it to function. The ACE inhibitors are drugs that inhibit the formation of angiotensin II and are used for blood pressure control and congestive heart failure. The ACE inhibitors include benazepril (brand name: Lotensin), captopril (brand name: Capoten), lisinopril (brand names: Zestril and Prinivil), quinapril (brand name: Accupril), and ramipril (brand name: Altace).
PREVIOUS AND NEXT TERMS--------------------------------------
Accessory placenta
"An extra placenta separate from the main placenta. Also called a succenturiate or supernumerary placenta. The placenta is the organ joining the mother and fetus, the organ that permits the provision of oxygen and nutrients to the fetus and the release of carbon dioxide and waste products from the fetus to the mother. The word ""placenta"" means a flat cake. The main placenta is disk-shaped and at full term measures about 7 inches (18 cm) in diameter and a bit less than 2 inches (4 cm) thick. The upper surface of the placenta is smooth while the under surface is rough. The placenta and the fetal membranes are the afterbirth."
Acclimatization to altitude
The main cause of altitude sickness is going too high too fast. Given time, the body can adapt to the decrease in oxygen concentration at a specific altitude, process known as acclimatization.
Accoucheur
French for a male obstetrician, a physician skilled in the art and science of managing pregnancy, labor and the puerperium (the time after delivery).
Accoucheuse
"French for a woman who is an obstetrician (a physician skilled in the art and science of managing pregnancy, labor and the time after delivery) or a midwife (today a non-physician trained to assist a woman during childbirth). The ending ""-euse"" is feminine and indicates that the accoucheuse is a woman."
ACE (angiotensin converting enzyme)
The angiotensins are peptides (substances smaller than proteins) that act as vasoconstricting agents (causing blood vessels to narrow). Narrowing the diameter of the blood vessels sends up the blood pressure. ACE converts angiotensin to its activated form (called angiotensin II) enabling it to function. The ACE inhibitors are drugs that inhibit the formation of angiotensin II and are used for blood pressure control and congestive heart failure. The ACE inhibitors include benazepril (brand name: Lotensin), captopril (brand name: Capoten), lisinopril (brand names: Zestril and Prinivil), quinapril (brand name: Accupril), and ramipril (brand name: Altace).
ACE inhibitor
ACE2 (angiotensin converting enzyme 2)
An essential regulator of heart function. Also may be involved in the embryonic development of the heart. The ACE2 gene has been mapped to the X chromosome (band Xp22).
ACEI
ACE inhibitor.
Acellular
Not made up of cells or divided into cells. Or lacking intact cells as, for example, an acellular vaccine which may contain cellular material but not complete cells.
Acellular vaccine
A vaccine that may contain cellular material but does not contain complete cells.
Acentric chromosome
"A fragment of a chromosome (one of the microscopically visible carriers of the genetic material DNA) that is lacking a centromere (the ""waist"" of the chromosome essential for the division and the retention of the chromosome in the cell) and so is lost when the cell divides."
RELATED TERMS--------------------------------------
Angiotensin
A family of peptides (smaller than proteins) that act as vasoconstrictors to narrow blood vessels.
Arteries
Blood vessels that carry blood away from the heart to the arms, legs, head, body and organs.
Blood
The life-maintaining fluid which is made up of plasma, red blood cells (erythrocytes), white blood cells (leukocytes), and platelets; blood circulates through the body's heart, arteries, veins, and capillaries; it carries away waste matter and carbon dioxide, and brings nourishment, electrolytes, hormones, vitamins, antibodies, heat, and oxygen to the tissues.
Heart
The hollow, muscular organ responsible for pumping blood through the circulatory system.
Cardiac
Pertaining to the heart.
SIMILAR TERMS--------------------------------------
ACE (angiotensin converting enzyme)
The angiotensins are peptides (substances smaller than proteins) that act as vasoconstricting agents (causing blood vessels to narrow). Narrowing the diameter of the blood vessels sends up the blood pressure. ACE converts angiotensin to its activated form (called angiotensin II) enabling it to function. The ACE inhibitors are drugs that inhibit the formation of angiotensin II and are used for blood pressure control and congestive heart failure. The ACE inhibitors include benazepril (brand name: Lotensin), captopril (brand name: Capoten), lisinopril (brand names: Zestril and Prinivil), quinapril (brand name: Accupril), and ramipril (brand name: Altace).
PREVIOUS AND NEXT TERMS--------------------------------------
Accessory placenta
"An extra placenta separate from the main placenta. Also called a succenturiate or supernumerary placenta. The placenta is the organ joining the mother and fetus, the organ that permits the provision of oxygen and nutrients to the fetus and the release of carbon dioxide and waste products from the fetus to the mother. The word ""placenta"" means a flat cake. The main placenta is disk-shaped and at full term measures about 7 inches (18 cm) in diameter and a bit less than 2 inches (4 cm) thick. The upper surface of the placenta is smooth while the under surface is rough. The placenta and the fetal membranes are the afterbirth."
Acclimatization to altitude
The main cause of altitude sickness is going too high too fast. Given time, the body can adapt to the decrease in oxygen concentration at a specific altitude, process known as acclimatization.
Accoucheur
French for a male obstetrician, a physician skilled in the art and science of managing pregnancy, labor and the puerperium (the time after delivery).
Accoucheuse
"French for a woman who is an obstetrician (a physician skilled in the art and science of managing pregnancy, labor and the time after delivery) or a midwife (today a non-physician trained to assist a woman during childbirth). The ending ""-euse"" is feminine and indicates that the accoucheuse is a woman."
ACE (angiotensin converting enzyme)
The angiotensins are peptides (substances smaller than proteins) that act as vasoconstricting agents (causing blood vessels to narrow). Narrowing the diameter of the blood vessels sends up the blood pressure. ACE converts angiotensin to its activated form (called angiotensin II) enabling it to function. The ACE inhibitors are drugs that inhibit the formation of angiotensin II and are used for blood pressure control and congestive heart failure. The ACE inhibitors include benazepril (brand name: Lotensin), captopril (brand name: Capoten), lisinopril (brand names: Zestril and Prinivil), quinapril (brand name: Accupril), and ramipril (brand name: Altace).
ACE inhibitor
ACE2 (angiotensin converting enzyme 2)
An essential regulator of heart function. Also may be involved in the embryonic development of the heart. The ACE2 gene has been mapped to the X chromosome (band Xp22).
ACEI
ACE inhibitor.
Acellular
Not made up of cells or divided into cells. Or lacking intact cells as, for example, an acellular vaccine which may contain cellular material but not complete cells.
Acellular vaccine
A vaccine that may contain cellular material but does not contain complete cells.
Acentric chromosome
"A fragment of a chromosome (one of the microscopically visible carriers of the genetic material DNA) that is lacking a centromere (the ""waist"" of the chromosome essential for the division and the retention of the chromosome in the cell) and so is lost when the cell divides."
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This dictionary contains 19186 terms.
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