Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
SLSBio12Circulatory
SLSBio12Circulatory AC
| Term | Definition |
|---|---|
| Antibody | An antibody, also known as an immunoglobulin, is a large Y-shape protein produced by B cells that is used by the immune system to identify and neutralize foreign objects such as bacteria and viruses. |
| Antigen | In immunology, an antigen is a substance foreign to the body which, once in the body, attracts and is bound to by to a respective and specific antibody. |
| Arterial duct | a fetal vessel connecting the left pulmonary artery with the descending aorta; in the first 2 months after birth, it normally changes into a fibrous cord, the ligamentum arteriosum; persistent postnatal patentcy is a correctable cardiovascular handicap. |
| Atrioventricular valve | small valves that prevent backflow from the ventricles into the atrium during systole. |
| Autonomic nervous system | part of the peripheral nervous system that acts as a control system, functioning largely below the level of consciousness, and controls visceral functions - heart rate, digestion, respiratory rate, salivation, perspiration, pupillary dilation |
| Atrioventricular (AV) node | part of the electrical control system of the heart that coordinates the top of the heart. It electrically connects atrial and ventricular chambers. |
| Blood pressure | pressure exerted by circulating blood upon the walls of blood vessels, and is one of the principal vital signs |
| Blood velocity | continuous circulation of blood in the cardiovascular system. This process ensures the transportation of nutrients, hormones, metabolic wastes, O2 and CO2 throughout the body to maintain cell-level metabolism |
| Chordae tendineae | cord-like tendons that connect the papillary muscles to the tricuspid valve and the mitral valve in the heart. |
| Diastolic pressure | the pressure when heart refills with blood after systole (contraction) |
| Fetal circulation | circulatory system of a human fetus, often encompassing the entire fetoplacental circulation which includes the umbilical cord and the blood vessels within the placenta that carry fetal blood |
| Heart rate | speed of the heartbeat, specifically the number of heartbeats per unit of time |
| Hypertension | chronic medical condition in which the blood pressure in the arteries is elevated |
| Lymph node | act as filters or traps for foreign particles and are important in the proper functioning of the immune system |
| Lymphatic system | network of conduits called lymphatic vessels that carry a clear fluid called lymph directionally towards the heart |
| Oval opening | between the two atria allows blood to by-pass lungs; after birth, it seals off due to pressure changes; if it does not seal off, a "blue baby" results, can be corrected by surgery |
| Plasma | pale-yellow liquid component of blood that normally holds the blood cells in whole blood in suspension |
| Platelets | small, disk shaped clear cell fragments that are a natural source of growth factors. They circulate in the blood of mammals and are involved in hemostasis, leading to the formation of blood clots |
| Pulmonary circulation | portion of the cardiovascular system which carries deoxygenated blood away from the heart, to the lungs, and returns oxygenated (oxygen-rich) blood back to the heart |
| Purkinje fibres | allow the heart's conduction system to create synchronized contractions of its ventricles, and are, therefore, essential for maintaining a consistent heart rhythm |
| Sinoatrial (SA) node | impulse-generating (pacemaker) tissue located in the right atrium of the heart, and thus the generator of normal sinus rhythm |
| Semi-lunar valve | allows blood flow in only one direction through the heart. in the arteries leaving the heart, are the aortic valve and the pulmonary valve |
| Septum | wall, dividing a cavity or structure into smaller ones |
| Systemic circulation | part of the cardiovascular system which carries oxygenated blood away from the heart to the body, and returns deoxygenated blood back to the heart |
| Systolic pressure | force that drives blood out of the heart |
| Umbilical artery | paired artery (with one for each half of the body) that is found in the abdominal and pelvic regions. In the fetus, it extends into the umbilical cord. |
| Umbilical vein | vein present during fetal development that carries oxygenated blood from the placenta to the growing fetus. |
| Venous duct | The venous duct connects the umbilical arteries to the liver. |
Created by:
acabrera
Popular Biology sets