What is the relaxation phase of the heart beat?

Contraction or systolic phase is when the heart contracts and pumps out the blood. The moment the heart muscle relaxes it refill like a sponge when not gripped tightly. This is the diastolic phase. With regards to blood pressure the first value is the contraction and the second value is the relaxation pressure.

Consequently, what are the four separate congenital heart defects?

A Chabner 11QuestionAnswerClick-murmur syndromemitral valve prolapseFour separate congenital heart defectstetralogy of FallotPatent meansopenThe cause of essential hypertension isidiopathic

What is the study of the heart?

The field includes medical diagnosis and treatment of congenital heart defects, coronary artery disease, heart failure, valvular heart disease and electrophysiology. Physicians who specialize in this field of medicine are called cardiologists, a specialty of internal medicine.

What is the term for a heart rate of less than 60 beats per minute?

A heart rate of less than 60 beats per minute (BPM) in adults is called bradycardia. What’s too slow for you may depend on your age and physical condition. Physically active adults (and athletes) often have a resting heart rate slower than 60 BPM but it doesn’t cause problems and is normal for them.

How does the heart get oxygen and nutrients?

The heart, like any organ, requires blood for oxygen and other nutrients so it can do its work. The heart does not gather oxygen or nutrients from the blood flowing inside it. Instead, it receives blood from coronary arteries that eventually carry blood into the heart muscle.

What is the streptococcal infection that causes damage to the heart valves and heart muscle?

Rheumatic Fever. Untreated strep throat or other infections with strep bacteria that progress to rheumatic fever can cause heart valve disease. When the body tries to fight the strep infection, one or more heart valves may be damaged or scarred in the process. The aortic and mitral valves most often are affected.

Where is the pacemaker of the heart?

Electrical impulses from the heart muscle cause your heart to beat (contract). This electrical signal begins in the sinoatrial (SA) node, located at the top of the heart’s upper-right chamber (the right atrium). The SA node is sometimes called the heart’s “natural pacemaker.”

How many leads are used for a Holter monitor?

The Holter monitor is battery-powered and holds a regular-sized cassette tape, much like one you would use in an audio tape player. The monitor has 5 to 7 wires called leads. The leads attach to metal disks called electrodes, which you wear on your chest.

What is the term for relaxation of the heart?

There are two phases of a heartbeat. Diastole is the term used to describe the relaxation of the heart. When the heart is in this state of relaxation, the pressure within the heart is very low and blood is passively flowing through the atria and into the ventricles through the open atrioventricular valve, or AV valve.

Are vessels that carry oxygen rich blood to the heart muscle?

Coronary Arteries. The coronary arteries are the network of blood vessels that carry oxygen- and nutrient-rich blood to the cardiac muscle tissue. The blood leaving the left ventricle exits through the aorta, the body’s main artery.

How long does it take for a full cardiac cycle?

• Cardiac cycle time (H.Rate = 75/min) : 0.8 sec. Systole : 0.27 sec. Diastole: 0.53 sec. • Systole : Contraction and emptying.

What is the pressure on the heart caused by fluid in the pericardial space?

Because of the limited amount of space in the pericardial cavity, fluid accumulation leads to an increased intrapericardial pressure which can negatively affect heart function. A pericardial effusion with enough pressure to adversely affect heart function is called cardiac tamponade.

What is the local widening of an artery?

Aneurysm, widening of an artery that develops from a weakness or destruction of the medial layer of the blood vessel. Aneurysms may occur in any part of the aorta or major arteries.

What are the two upper chambers of the heart?

…turn are subdivided into two chambers. The upper chamber is called an atrium (or auricle), and the lower chamber is called a ventricle. The two atria act as receiving chambers for blood entering the heart; the more muscular ventricles pump the blood out of the heart.

What is the smallest type of blood vessel in the body?

The three main types of blood vessels are arteries, capillaries, and veins. The smallest of the body’s blood vessels. Oxygen and glucose pass through capillary walls and enter the cells.

Which chamber of the heart receives deoxygenated blood from the body?

The right ventricle receives deoxygenated blood from the right atrium, then pumps the blood along to the lungs to get oxygen. The left ventricle receives oxygenated blood from the left atrium, then sends it on to the aorta.

Where does the blood go immediately after passing through the tricuspid valve?

Blood passes from the right atrium through the tricuspid valve and into the right ventricle. When the right ventricle contracts, the muscular force pushes blood through the pulmonary semilunar valve into the pulmonary artery. The blood then travels to the lungs, where it receives oxygen.

What is the medical term for inflammation of the inner lining of the heart?

endocarditis

What is the cause of essential hypertension?

Essential hypertension is high blood pressure that doesn’t have a known secondary cause. It’s also referred to as primary hypertension. Blood pressure is the force of blood against your artery walls as your heart pumps blood through your body.

What is the double layered membrane surrounding the heart?

A double-layered membrane called the pericardium surrounds your heart like a sac. The outer layer of the pericardium surrounds the roots of your heart’s major blood vessels and is attached by ligaments to your spinal column, diaphragm, and other parts of your body.

What are the four separate congenital heart defects?

A Chabner 11QuestionAnswerClick-murmur syndromemitral valve prolapseFour separate congenital heart defectstetralogy of FallotPatent meansopenThe cause of essential hypertension isidiopathic

What is located between the left upper and lower chambers of the heart?

The heart consists of four chambers, two atria (upper chambers) and two ventricles (lower chambers). There is a valve through which blood passes before leaving each chamber of the heart. mitral valve: located between the left atrium and the left ventricle.

What is the main blood vessel that carries oxygen poor blood from the heart to the lungs?

The pulmonary artery carries oxygen-poor blood to the lungs to receive oxygen. The pulmonary veins carry oxygen-rich blood from the lungs to the left atrium. The left atrium receives oxygen-rich blood from the lungs through the pulmonary veins and pumps the blood to the left ventricle.

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