وبالـعلم نـرتقـي 07🩺💊

blood pressure: اختصارها

coarctation of the aorta: اختصارها

​ventricular fibrillation: اختصارها

​tissue plasminogen activator اختصارها

Blood leaving capillaries first enter small.....

Veins have much thinner walls than arteries

Blood pressure in the arteries is much lower than in the veins

Systolic pressure is the lowest blood pressure reading occurring during ventricular diastole.

​Veins contain valves that allow blood to flow in only one direction, toward the heart.

Capillaries have very thick walls to withstand high blood pressure.

The pulmonary artery carries deoxygenated blood from the right ventricle to the lungs.

The aorta is the largest artery that carries oxygenated blood to all body systems.

Arterioles are the largest type of arteries.

The walls of arteries contain a thick layer of smooth muscle that can contract or relax to change the size of the arterial lumen.

Arteries are thin-walled vessels that carry blood away from the heart.

The lumen is the channel within these vessels through which blood flow

The electrical signal next travels down the...................within the interventricular septum

The atrioventricular bundle was formerly called the bundle of His

Electricity traveling through the atria causes them to contract.

The heart rate is regulated by the autonomic nervous system.