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Heart
The heart is a major organ of the body that is found in the circulatory system. It pumps blood throughout the blood vessels. Questions related to the heart should be put here.
8,781 Questions
Is blood going to the heart darker or lighter than blood going away from the heart?
Blood entering the heart from Superior vena cava and Inferior vena cava is "dirty". Bloold going through Pulmonary artery is 'dirty" and is "cleaned" (oxygenated) in the lungs. Blood entering the heart via pulmonary vein and leaving via aorta is clean.
Simple pulmonary stress test
Veins carry blood to the heart from the body, and arteries carry blood from the heart.
Usually, the blood in veins is deoxygenated (ie. has very little oxygen left), and arteries have oxygenated blood. However, in the pulmonary ("lungs") circulatory system, it is the opposite (ie. veins ALWAYS carry blood TO the heart, whether oxygenated or not, and vice versa).
What other years' Geo car body parts are interchangable with a 1992 Geo Metro?
From what I have read 92-95 are pretty much the same depending on model for ex. a base model may have some different parts from a lsi.
What do the numbers 710 stand for It is located on a valve pan cap?
Take the cap off and turn it upside down. now read it.
How does exercise affect heart rate?
when you excercise, your body needs more oxygen. what provides oxygen? blood. so since the heart pumps blood, it has to pump faster in order to supply the extra oxygen needed. that is why when you excercise, you breath faster and deeper, and your heart rate increases. this is especially true when you are doing areobic excercises, which are designed to increase heart rate.
Where is the thymus located on the heart?
I believe that the thymus is located on the back portion of the heart, near the vocal cords. Please forgive my if I'm wrong.
How does sniffing cocaine cause a perforated septum?
Sniffing cocaine causes a perforated septum by continuous use of the drug, tissues in the nose are deprived of blood and die.
What is the difference between the atria and the ventricles of the heart?
The atria are the two upper chambers in the heart, and they receive blood entering from outside of the heart. The ventricles are the two lower chambers of the heart and they each receive blood from an atrium and then send it out of the heart.
Electronic watches use a resonant electronic circuit containing a crystal (usually quartz) which oscillates at a specific frequency. The oscillation is converted to a stream of pulses, which drive a series of binary counters. Because the frequency of the crystal is known, when a specific number of pulses is counted, one second has passed. Another counter counts the seconds to determine when one minute has passed, and so on.
Mechanical watches use an oscillating balance wheel and spring which act together, somewhat like a pendulum. The mass of the wheel and the elasticity of the spring determine the frequency of the movement. The oscillating motion is transferred to gears by way of an escapement mechanism, which allows a wheel to advance by a fixed amount with each oscillation of the balance wheel. A series of gears with the correct ratios of teeth determine the rotation of the second, minute and hour hands.
Electronic movements have few or no moving parts, as they use the piezoelectric effect in a tiny quartz crystal to provide a stable time base for a mostly electronic movement. The crystal forms a quartz oscillator which resonates at a specific and highly stable frequency, and which can be used to accurately pace a timekeeping mechanism. For this reason, electronic watches are often called quartz watches. Most quartz movements are primarily electronic but are geared to drive mechanical hands on the face of the watch in order to provide a traditional analog display of the time, which is still preferred by most consumers.
What is considered a low heart rate for a congestive heart failure patient?
while 60 is concidered the normal lower limits, the heart rate is not seen as to low until it causes a drop in blood presure that produces a negative affect in the person .
How does FOMC achieve Fed Fund Rate targets?
Extracted from http://www.federalreserve.gov/generalinfo/faq/faqmpo.htm
The federal funds rate is the rate charged by one depository institution on an overnight sale of immediately available funds (balances at the Federal Reserve) to another depository institution; the rate may vary from depository institution to depository institution and from day to day. The target federal funds rate is set by the Federal Open Market Committee (FOMC). By setting a target federal funds rate and using the tools of monetary policy--open market operations, discount window lending, and reserve requirements--to achieve that target rate, the Federal Reserve and the FOMC seek "to promote effectively the goals of maximum employment, stable prices, and moderate long-term interest rates," as required by the Federal Reserve Act. At each of its meeting, the FOMC examines a number of indicators of current and prospective economic developments. Then, cognizant that its actions affect economic activity with a lag, it must decide whether to alter its target for the federal funds rate. An actual decline in the rate stimulates economic growth, but an excessively high level of economic activity can cause inflation pressures to build to a point that ultimately undermines the sustainability of an economic expansion. An actual rise in the rate curbs economic growth and helps contain inflation pressures, and thus can promote the sustainability of an economic expansion; too great a rise, however, can retard economic growth too much. The FOMC's actions on the target federal funds rate are undertaken to achieve the maximum rate of economic growth consistent with price stability and moderate long-term interest rates.
Extracted from http://www.frbsf.org/education/activities/drecon/answerxml.cfm?selectedurl=/2006/0604.html
Specifically, to lower the fed funds rate, the Fed will instruct the open market desk in New York to purchase Treasury securities on the open market, which in turn infuses money into the banking system and thus moves the effective federal funds rate or price of those reserves down.
Is the heart anterior or lateral to the sternum?
The heat is posterior to the sternum, not anterior. It is a midline structure, like the sternum, so it is not lateral to the sternum.
What are the main blood vessels leading out of the heart and what do they do?
The two main blood vessels leading out of the heart are the pulmonary trunk and the aorta.
Is a heart rate of 110 good for a 6-week fetus or is it too low?
Yesterday I would have said that was too low, then I found this website which says that the normal at 6 weeks is 90-110. I learn something new every day.
so we kan um work propley dont even awser us eny more oky so i am a lowed oky just mined ur own bisnis oky so bye bye dont ry
Adrenalin.
What is the vessel that passes away from the heart?
Arteries carry blood away from the heart. Veins carry blood to the heart.
What are four chamber of the heart?
The four chambers of the heart are as follows:
- Left atrium
- Right atrium
- Left ventricle
- Right ventricle
Right Atrium, Left Atrium, Right Ventricle, Left Ventricle
Right Atrium, Left Atrium, Right Ventricle, Left Ventricle
The heart has four chambers. The two ventricles (right and left) are muscular chambers that propel the blood out of the heart (the right ventricle to the lungs, and the left ventricle to all other organs). The two atria (right and left) hold the blood returning to the heart, and at just the right moment empty into the right and left ventricles.
