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SLS Bio12 Abby
SLS Bio12 Circulatory abigail igba
| Term | Definition |
|---|---|
| Antibody | a blood protein produced in response to and counteracting a specific antigen. Antibodies combine chemically with substances that the body recognizes as alien, such as bacteria, viruses, and foreign substances in the blood. |
| Antigen | a toxin or other foreign substance that induces an immune response in the body, esp. the production of antibodies. |
| Arterial duct | a fetal vessel connecting the left pulmonary artery with the descending aorta |
| Atrioventricular valve | either of two heart valves through which blood flows from the atria to the ventricles; prevents return of blood to the atrium |
| Autonomic nervous system | the part of the nervous system responsible for control of the bodily functions not consciously directed, such as breathing, the heartbeat, and digestive processes |
| Atrioventricular node | a node of specialized heart muscle located in the septal wall of the right atrium; receives impulses from the sinoatrial node and transmits them to atrioventricular bundle |
| Blood pressure | The pressure of blood exerted against the vessel walls |
| Blood velocity | Blood velocity is defined as the velocity or speed of blood in the aorta. It is also defined as the rate of change or alteration of the blood position in the body. |
| Chordae tendineae | The chordae tendineae, or heart strings, are cord-like tendons that connect the papillary muscles to the tricuspid valve and the mitral valve in the heart |
| Diastolic pressure | the lowest blood pressure (as measured by a sphygmomanometer) after the contraction of the heart while the chambers of the heart refill with blood |
| Fetal circulation | the system of blood vessels and structures through which blood moves in a fetus |
| Heart rate | pulse: the rate at which the heart beats; usually measured to obtain a quick evaluation of a person's health |
| Hypertension | abnormally high blood pressure. |
| Hypotension | abnormally low blood pressure. |
| Lymph node | each of a number of small swellings in the lymphatic system where lymph is filtered and lymphocytes are formed. |
| Lymphatic system | the network of vessels through which lymph drains from the tissues into the blood. |
| Oval opening | The opening between the to atria it has a flap which also acts as a valve |
| Plasma | the colorless fluid part of blood, lymph, or milk, in which corpuscles or fat globules are suspended |
| Platelets | a small colorless disk-shaped cell fragment without a nucleus, found in large numbers in blood and involved in clotting. |
| Pulmonary circulation | circulation of blood between the heart and the lungs |
| Purkinje fibres | The Purkinje fibers are located in the inner ventricular walls of the heart, just beneath the endocardium in a space called the subendocardium |
| Sinoatrial node | a small body of specialized muscle tissue in the wall of the right atrium of the heart that acts as a pacemaker by producing a contractile signal at regular intervals |
| Semi lunar valve | each of a pair of valves in the heart, at the bases of the aorta and the pulmonary artery, consisting of three cusps or flaps that prevent the flow of blood back into the heart. |
| Septum | A partition separating two chambers such as the nostrils and the chambers of the heart. |
| Systematic circulation | Circulation to other parts of the body except the lungs |
| Systolic pressure | the highest blood pressure (as measured by a sphygmomanometer) during the contraction of the left ventricle of the heart |
| Umbilical artery | The umbilical artery is a paired artery that is found in the abdominal and pelvic regions. In the fetus, it extends into the umbilical cord. |
| Umbilical vein | a vein in the umbilical cord; returns nutrient blood from the placenta to the fetus |
| Venous duct | The venous duct connects the umbilical arteries to the liver |
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abby2
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