Which two valves are open during ventricular systole and closed during ventricular diastole?
The semi-lunar valves
What is the name of the third valve in the heart?
The name is the aortic valve.
surgery.about.com/od/beforesurgery/qt/HeartValves.htm
this is where i found it.
What is the layer of the heart that produces its contractions?
The contractions start from a node in the myocardiumcalled the SA node (sino-atrial node), which produces the stimulatory signals in a rhythmic mode. As the stimulatory signals move throughout the myocardial muscle, it contracts.
Contraction of the ventricles and atria is called systole. Relaxation is called diastole.
Why is it that the right side of the LUNGS is bigger than left side?
Its bigger because the right lung has more lobs then the left lung.
How long can a person live without shelter?
It depends on the local climate, and exactly what you mean by "shelter".
In some climates, there's no real reason you shouldn't be able to survive indefinitely without shelter.
How long after heart stops is a person brain dead?
The brain can survive for up to about six minutes after the heart stops. The reason to learn cardiopulmonary resuscitation (CPR) is that if CPR is started within six minutes of cardiac arrest, the brain may survive the lack of oxygen. After about six minutes without CPR, however, the brain begins to die.
Does the venous blood enter the right atrium?
The venous or deoxygenated blood flows into the right atrium. Then is goes to the right ventricle. From there it is pumped out to the lungs to get oxygenated and back into the left atrium then to the left ventricle and from there to the rest of the body.
Actual pumps of the heart are called?
The heart has four sections, each of which functions as a pump. These are, the right atrium, the right ventricle, the left atrium, and the left ventricle. Note that term atrium has replaced what was previously called an auricle. Not to be confused with an oracle, that's something completely different.
Why was the weighing of the heart so important?
Ammut, would appear and eat the heart if it was heavier than a feather. A light heart was achieved by being charitable whilst alive. Ammut is the god which is shown to have a head of a crocodile and the body of a Hippo and a lion.
What causes a deveated septum?
Septal deviations are either congenital (present from birth) or develop as a result of an injury.
What are the 4 valves on your heart?
Pulmonary valve
Aortic Valve
Mitral Valve
Tricuspid Valve
WHERE ARE THE FOUR HEART VALVES IN THE HEART
Tricuspid Valve
Pulmonary Valve
Mitral Valve (AKA Bicuspid Vlave)
Aortic Valve
The four valves are known as:
Why do the ventricles have more muscle mass than the atria?
The ventricles are the lower chambers of the heart which pump blood around the body. They require more muscular walls to enable them to have enough power to pump the blood around the body effectively.
The atria are the upper chambers in the heart and squeeze the blood returning from the lungs and body into the ventricles. Because this is such a short distance, they require a lot less strength to be able to do there job effectively than the ventricles do.
The left ventricle has an even more muscular wall than the right ventricle, because the right ventricle pumps blood to the lungs only, whereas the left ventricle pumps blood to all the other organs and therefore has a further distance to cover.
Through what vessels does the blood enter the heart after coming from the lungs?
Through the pulmonary veins to the left atrium
What do you mean by being pure in heart?
The purity of heart is the rung the The Ladder of the Beatitudes. As it is the case with any ladder, the sixth rung can only be reached if the previous five were already climbed. Our heart can be completely pure only if we have achieved the state of dispassion. What is a pure heart? A heart free of possessiveness, a heart able to feel the sorrow of others, a heart that thirsts for what is right, a heart that is not vengeful. We see a pure heart in the face of any saintly person.
Can left ventricle hypertrophy be repaired?
I was diagnosed with this 14 months ago, shortly after a diagnosis of very high blood pressure (190/130). My doctor put me on blood pressure pills which soon brought my BP down to normal levels (120/80).
At the time my left ventricular wall thickness was 17mm. It has now recovered to 11mm, which is normal.
So the answer is yes, recovery is definitely possible.
What is the normal heart resting rate for adults according to the American heart association?
Expert consensus reveals that 98% of cardiologists believe that the "60 to 100" range is too high, with a vast majority of them agreeing that 50 to 90 beats per minute is more appropriate.[
what does it mean when your heart scan shows a shadow on the left side of your heart
Reshaping of the nasal septum to correct airway obstruction?
30520- Septoplasty- reshaping of the nasal septum.
Does homeopathy improves heart health?
Yes. one can take homeopathic medicines for their ailments if they already are suffering form heeart problems but only under the supervision of a physician.
Do birds have a four-chambered heart?
Like mammals, avians (birds, or members of the class Aves) have four-chambered hearts, consisting of two atria and two ventricles. By contrast, reptiles and amphibians have three-chambered hearts (two atria and one ventricle, sometimes with an incomplete septum in reptiles) and fish have two chambers (one atrium and one ventricle).
What three veins enter the left atrium?
The left atrium gets oxygenated blood from the pulmonary veins and pumps it into the left ventricle through the atrioventricular valve.
The four types of pulmonary veins are: