Cardiovascular system revist by Aparna Duggirala

2023-12-01 12:10:03 UTC

The cardiac cycle begins with the atrium and ventricle in a relaxed, diastolic state. Blood flowing from veins passes through the sinus , the sino-atrial canal and the atrio-ventricular canal, filling the atrium and partially filling the ventricle. Atrial contraction (atrial systole) then follows, ejecting blood from the atrium to complete filling of the ventricle, which is still in diastole.

2023-12-01 12:10:46 UTC

Tachycardia is 100+ bpm

Bradycardia is under 60

Blood pressure can affect how your heart works, eg individuals with high blood pressure are at risk or heart attacks, there are 4 chambers all working differently carrying oxygenated and deoxygenated blood pumping blood around our body,

Cardiac cycle

2023-12-01 12:11:37 UTC

The cardiac cycle is a sequence of pressure variations that take place inside the heart, causing blood to flow through the various heart chambers and throughout the body. It is composed of two phases, each with an atrial and ventricular component: the diastole (relaxation phase) and the systole (contraction phase). Throughout the cardiac cycle, there is a significant fluctuation in the pressure within the chambers. Blood mostly moves in this way: the veins return deoxygenated blood to the heart and the arteries transport oxygenated blood from the heart to the lungs.

2023-12-01 12:12:12 UTC

The cardiovascular system oxygenates blood and removes carbon dioxide from the body. As the cycle is continuous through breathing we breather in through our noses to so the oxygen goes to our lungs then to our heart to oxygenate our bloodstream then travels through the arteries to remove any carbon dioxide in the bloodstream as we breathe out our mouths

It is responsible for transporting blood, it consist of the heart, vein, arteries

2023-12-01 12:12:52 UTC

The atria receive blood returning from the heart and transport to the ventricle

The left atrium receive oxygenated blood while right atruim receive deoxygenated blood

Cardio vascular system

2023-12-01 12:14:27 UTC

It consist of the hearts which helps in pumping blood to the body with the help of the arteries, arterioles, veins, venules and capillaries. Which carry out all different functions and are all linked together and helps in carrying oxygenated blood awayfrom and deoxygenated blood to the heart . Pulmonary artery is the only exception that takes oxygenated blood to the heart from the lungs and veins take deoxygenated blood from the heart to the lungs

The SAN is also a very important part of the heart also known as the pace maker which helps in sending electrical signals to the heart

An average heartbeat range is 60-100

Cardiovascular system is included two circulation system. Those circulation systems are polumonary and systematic. Circulatory system also help your body ride a weste products such as:

2023-12-01 12:17:27 UTC

Carbon dioxide from respiration.

Other chemical byproduct from other organs.

Things from you eat and drinking of weste product.

Blood flow chart

2024-12-06 11:16:32 UTC

Left atrium -> Left ventricle -> Aorta -> descending aorta/ascending arteries -> peripheral arteries -> arterioles -> capillary beds in the organs and tissues -> venules -> peripheral veins -> Superior/inferior vena cava -> right atrium -> right ventricle -> L/R Pulmonary artery -> pulmonary arterioles -> pulmonary capillaries -> pulmonary venules -> L/R pulmonary veins -> back to Left atrium.