Question

Define medical Terminoloy

1. Lymph node
2. Mean arterial pressure (MAP)
3. Mediastinum
4. Myocardial contractility
5. Myocardial oxygen consumption (MV̇O₂)
6. Myocardium
7. Natriuretic peptide (NP)
8. Nitric oxide (NO)
9. P wave
10. Perfusion
11. Pericardium
12. Peripheral vascular system
13. PR interval
14. Preload
15. Pulmonary artery
16. Pulmonary vein
17. Pulmonic semilunar valve
18. Pulse pressure
19. Purkinje fiber
20. QRS complex

Answer 1

Lymph node-A small bean-shaped structure that is part of the body's immune system. Lymph nodes filter substances that travel through the lymphatic fluid, and they contain lymphocytes (white blood cells) that help the body fight infection and disease.

Mean arterial pressure-In medicine, the mean arterial pressure is an average blood pressure in an individual during a single cardiac cycle.

Mediastinum.a membranous partition between two body cavities or two parts of an organ, especially that between the lungs.

Myocardial contractility represents the innate ability of the heart muscle to contract. The ability to produce changes in force during contraction result from incremental degrees of binding between different types of tissue, that is, between filaments of myosin and actin tissue.

Myocardial oxygen demand is the amount of oxygen that the heart requires to maintain optimal function, and myocardial oxygen supply is the amount of oxygen provided to the heart by the blood which is controlled by the coronary arteries.

Cardiac muscle (also called heart muscle or myocardium) is one of three types of vertebrate muscles, with the other two being skeletal and smooth muscles. It is an involuntary, striated muscle that constitutes the main tissue of the walls of the heart.

A natriuretic peptide is a peptide that induces natriuresis, which is the excretion of sodium by the kidneys. Known natriuretic peptides include the following: atrial natriuretic peptide, also known as ANP. brain natriuretic peptide, also known as BNP.

Nitric oxide is a colorless gas with the formula NO. It is one of the principal oxides of nitrogen. Nitric oxide is a free radical, i.e., it has an unpaired electron, which is sometimes denoted by a dot in its chemical formula.

The first wave (p wave) represents atrial depolarisation. When the valves between the atria and ventricles open, 70% of the blood in the atria falls through with the aid of gravity, but mainly due to suction caused by the ventricles as they expand.

Perfusion is the passage of fluid through the lymphatic system or blood vessels to an organ or a tissue.