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| This glossary contains: 19186 medical terms |
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Chordae Tendinae
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Chordae TendinaeThe thin, fibrous chords that lead from the valve leaflets to the small papillary muscles within the heart muscle wall, contributes to the support of the tricuspid and mitral valves.
RELATED TERMS--------------------------------------
Valve
A fold in the lining of an organ that prevents fluid from flowing backward.
Leaflets
Thin pieces of tissue or flaps that make up a valve.
Papillary
Having small nipple-shaped projections.
Heart
The hollow, muscular organ responsible for pumping blood through the circulatory system.
Muscle
Tissue made up of bundles of long, slender cells that contract when stimulated.
SIMILAR TERMS--------------------------------------
Chorda tympani
A branch of the facial nerve (the seventh cranial nerve) that serves the taste buds in the front of the tongue, runs through the middle ear, and carries taste messages to the brain.
Chordae tendineae
Thread-like bands of fibrous tissue which attach on one end to the edges of the tricuspid and mitral valves of the heart and on the other end to the papillary muscles, small muscles within the heart that serve to anchor the valves.
Chordee
Fixed curvature or tying down of the penis or hypertrophied clitoris as in the hypospadiac birth defect characteristic of various types of hermaphroditism.
Chordoma
A form of bone cancer that usually starts in the lower spinal column.
Chorea
Rapid, jerky, dance-like movement of the body.
Chorioangioma, placental
A benign vascular (blood vessel) tumor of the placenta (afterbirth). Large chorioangiomas cause complications including polyhydramnios (excess amniotic fluid), maternal and fetal clotting problems (coagulopathies), premature delivery, toxemia, fetal heart failure, and hydrops (excess fluid) affecting the fetus.
Choriocarcinoma
A highly malignant tumor that arises from trophoblastic cells within the uterus. Choriocarcinoma tends to be invasive and to metastasize early and widely through both the venous and lymphatic systems. Choriocarcinoma is one of the two types of gestational trophoblastic tumor, the other being hydatidiform mole.
Chorion
The outermost of the two membranes surrounding the embryo/fetus, part of which forms the fetal portion of the placenta.
Chorionic gonadotropin
Human chorionic gonadotropin (hCG) is a peptide hormone produced in pregnancy, that is made by the embryo soon after conception and later by the trophoblast (part of the placenta). Its role is to prevent the demise of the corpus luteum of the ovary and thereby maintain progesterone production that is critical for a pregnancy in humans. hCG may have additional functions, for instance it is thought that it affects the immune tolerance of the pregnancy.
Chorionic villus sampling
A procedure for first-trimester prenatal diagnosis. Chorionic villus sampling may be done between the eighth and tenth weeks of pregnancy. The aim is to diagnose severe abnormalities afflicting the fetus. In the procedure, tissue is withdrawn from the villi (vascular fingers) of the chorion, a part of the placenta, and examined. Chorionic villus sampling is referred to commonly as CVS.
Chorionic Villus Sampling (CVS)
A procedure in which a small sample of cells are taken from the placenta through a small catheter placed up through the vagina and the cervix. This is done earlier in pregnancy than amniocentesis and is used to test for chromosomal and other biochemical abnormalities that may affect the health and well being of the baby.
Chorioretinitis
An inflammation of the back of the eye involving the choroid and retina. It may be due to a number of different diseases, which affect the body such as toxoplasmosis, histoplasmosis, sarcoidosis, tuberculosis and syphilis.
Choroid
This is the vascular coat between the sclera and the retina, which furnishes blood and nutrition to the outer layer of the retina.
Choroideremia
Atrophy or decay of the choroid, choriocapillaris and Bruch’s membrane of the eye, leading to a severe loss of vision. Usually progresses to light perception by 50 years of age. Leads to night blindness tunnel vision and reduced visual acuity. No treatment available.
Choroiditis
An inflammation of the back of the eye involving the choroid and retina. It may be due to a number of different diseases, which affect the body such as toxoplasmosis, histoplasmosis, sarcoidosis, tuberculosis and syphilis.
PREVIOUS AND NEXT TERMS--------------------------------------
Carotid Bruit
An abnormal sound, heard when using a stethoscope to listen to blood flow in the carotid artery. This is the main artery in the neck; it brings blood to the head.
Carotid Duplex Ultrasound
An imaging procedure that uses high-frequency sound waves to view the blood vessels in the neck to and determine the presence of narrowing in the carotid arteries.
Cerebral Embolism
A common cause of stroke - an embolus that has moved through the blood stream and obstructs an artery leading to the brain.
Cerebral Vascular Accident (CVA)
The medical term used to describe a stroke
Chest X-ray
Used to view the lungs and lower respiratory tract. A chest X-ray may be used for diagnosis and therapy.
Chordae Tendinae
Chronic Venous Insufficiency
Damaged valves in the veins or a blood clot in the leg may cause ongoing swelling, blood pooling in the legs, and if untreated, discomfort and ulceration.
Clotting Factors
A group of chemicals in the blood, including fibrinogen, prothrombin, and calcium, that combine to form thrombi.
Clubbing
The ends of the fingers and toes enlarge and bend inward; related to inadequate oxygen-rich blood supply. Often seen with congenital heart defects, but also seen in other conditions.
CPR (cardiopulmonary resuscitation)
A procedure using cardiac and respiratory equipment and medications possibly to restore the heartbeat and/or breathing.
Coagulation Problems
Problem with blood clotting, either too much clotting or not enough.
RELATED TERMS--------------------------------------
Valve
A fold in the lining of an organ that prevents fluid from flowing backward.
Leaflets
Thin pieces of tissue or flaps that make up a valve.
Papillary
Having small nipple-shaped projections.
Heart
The hollow, muscular organ responsible for pumping blood through the circulatory system.
Muscle
Tissue made up of bundles of long, slender cells that contract when stimulated.
SIMILAR TERMS--------------------------------------
Chorda tympani
A branch of the facial nerve (the seventh cranial nerve) that serves the taste buds in the front of the tongue, runs through the middle ear, and carries taste messages to the brain.
Chordae tendineae
Thread-like bands of fibrous tissue which attach on one end to the edges of the tricuspid and mitral valves of the heart and on the other end to the papillary muscles, small muscles within the heart that serve to anchor the valves.
Chordee
Fixed curvature or tying down of the penis or hypertrophied clitoris as in the hypospadiac birth defect characteristic of various types of hermaphroditism.
Chordoma
A form of bone cancer that usually starts in the lower spinal column.
Chorea
Rapid, jerky, dance-like movement of the body.
Chorioangioma, placental
A benign vascular (blood vessel) tumor of the placenta (afterbirth). Large chorioangiomas cause complications including polyhydramnios (excess amniotic fluid), maternal and fetal clotting problems (coagulopathies), premature delivery, toxemia, fetal heart failure, and hydrops (excess fluid) affecting the fetus.
Choriocarcinoma
A highly malignant tumor that arises from trophoblastic cells within the uterus. Choriocarcinoma tends to be invasive and to metastasize early and widely through both the venous and lymphatic systems. Choriocarcinoma is one of the two types of gestational trophoblastic tumor, the other being hydatidiform mole.
Chorion
The outermost of the two membranes surrounding the embryo/fetus, part of which forms the fetal portion of the placenta.
Chorionic gonadotropin
Human chorionic gonadotropin (hCG) is a peptide hormone produced in pregnancy, that is made by the embryo soon after conception and later by the trophoblast (part of the placenta). Its role is to prevent the demise of the corpus luteum of the ovary and thereby maintain progesterone production that is critical for a pregnancy in humans. hCG may have additional functions, for instance it is thought that it affects the immune tolerance of the pregnancy.
Chorionic villus sampling
A procedure for first-trimester prenatal diagnosis. Chorionic villus sampling may be done between the eighth and tenth weeks of pregnancy. The aim is to diagnose severe abnormalities afflicting the fetus. In the procedure, tissue is withdrawn from the villi (vascular fingers) of the chorion, a part of the placenta, and examined. Chorionic villus sampling is referred to commonly as CVS.
Chorionic Villus Sampling (CVS)
A procedure in which a small sample of cells are taken from the placenta through a small catheter placed up through the vagina and the cervix. This is done earlier in pregnancy than amniocentesis and is used to test for chromosomal and other biochemical abnormalities that may affect the health and well being of the baby.
Chorioretinitis
An inflammation of the back of the eye involving the choroid and retina. It may be due to a number of different diseases, which affect the body such as toxoplasmosis, histoplasmosis, sarcoidosis, tuberculosis and syphilis.
Choroid
This is the vascular coat between the sclera and the retina, which furnishes blood and nutrition to the outer layer of the retina.
Choroideremia
Atrophy or decay of the choroid, choriocapillaris and Bruch’s membrane of the eye, leading to a severe loss of vision. Usually progresses to light perception by 50 years of age. Leads to night blindness tunnel vision and reduced visual acuity. No treatment available.
Choroiditis
An inflammation of the back of the eye involving the choroid and retina. It may be due to a number of different diseases, which affect the body such as toxoplasmosis, histoplasmosis, sarcoidosis, tuberculosis and syphilis.
PREVIOUS AND NEXT TERMS--------------------------------------
Carotid Bruit
An abnormal sound, heard when using a stethoscope to listen to blood flow in the carotid artery. This is the main artery in the neck; it brings blood to the head.
Carotid Duplex Ultrasound
An imaging procedure that uses high-frequency sound waves to view the blood vessels in the neck to and determine the presence of narrowing in the carotid arteries.
Cerebral Embolism
A common cause of stroke - an embolus that has moved through the blood stream and obstructs an artery leading to the brain.
Cerebral Vascular Accident (CVA)
The medical term used to describe a stroke
Chest X-ray
Used to view the lungs and lower respiratory tract. A chest X-ray may be used for diagnosis and therapy.
Chordae Tendinae
Chronic Venous Insufficiency
Damaged valves in the veins or a blood clot in the leg may cause ongoing swelling, blood pooling in the legs, and if untreated, discomfort and ulceration.
Clotting Factors
A group of chemicals in the blood, including fibrinogen, prothrombin, and calcium, that combine to form thrombi.
Clubbing
The ends of the fingers and toes enlarge and bend inward; related to inadequate oxygen-rich blood supply. Often seen with congenital heart defects, but also seen in other conditions.
CPR (cardiopulmonary resuscitation)
A procedure using cardiac and respiratory equipment and medications possibly to restore the heartbeat and/or breathing.
Coagulation Problems
Problem with blood clotting, either too much clotting or not enough.
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This dictionary contains 19186 terms.
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