Doctor insights on:
How Does The Heart Begin Contracting From The Apex
Resting: If the patient is having open heart surgery, coronary artery by pass or valvular heart replacement, the heart stop beating in a special machine and solution, while surgeon work on it. For donor heart transplant, heart is in a solution and is resting too. I hope i answered your ? ...Read more
Gastocnemius: Aorta to iliac to femoral arteries, branches off femoral to gastocs. ...Read more
Exercise increases the size of the heart, hypertrophy. How does this differ from cardiomyopathy and damage to the heart?
Hypertrophy/cardiomy: Just like skeletal muscle will increase in muscle mass to incresae strength of contraction .This is a compensatory response to increase the force of contraction. However, as the heart muscle increases in size it everntually will decrease the size of the heart chamber (ventricle) and decreases the volume of blood in the ventricle. ...Read more
Not on this planet: Blood moves from the atria to the ventricles. ...Read more
Lungs: Normally the lungs do not receive blood from the left atrium. Blood travels from the right atrium to the right ventricle to the lungs and then comes back from the lungs to the left atrium to the left ventricle and is then pumped out through the aorta to the rest of the body. ...Read more
See below: Absence of blood circulating to the brain. ...Read more
Can you tell me how the dlood entering the right atrium differ fom the blood entering the left atrium?
Circulation of blood: Heart is a pump,that works non stop,to keep you alive,and is divide in two sections,rt,.and left,all your activities and production of. Carbon dioxide,is carried by veins,transported to rt. atrium,to rt ventricle,thence to lungs,which exchanges co2 for oxygen,and from lungs taken to left atrium,ventricle and to the rest of body,this cycle goes on, ...Read more
By not interfering: A healthy pericardium is a very flexible, thin tissue that is "just there." it generally serves little purpose, other than to allow the chambers of the heart to expand outwards in a normal fashion, without resistance, as they fill with blood. If pericardium becomes inflamed, thickened or hardened, the heart loses this outward mobility, and pressure rises greatly as the heart tries to fill. ...Read moreSee 1 more doctor answer
By location: The heart's location is sufficiently the same in the chest cavity of most adults that the pulsation from the tip/apex can be palpated/felt.Trace a line down the chest from the mid-point of the collar bone (mid-clavicular line) and then feel between the ribs. The apex of the heart is between the 5th and 6th ribs (5th intercostal space). An left parasternal lift, for example, is felt by the sternum! ...Read more
Not in the heart: Coarctation of aorta by definition does not occur in the heart. It is usually in the descending segment of the aorta and it is congenital (person is born with it). The exact location is variable, sometimes it involves the aorta proximal to the take off of the left subcalvian (artery to the left arm) and at times distal to it. It is essentially a narrowing of the lumen of the artery. ...Read moreSee 2 more doctor answers
Nothing: How are you determining the pulse and the heart rate? The usual problem is extra heartbeats which can be picked up by ecgs and machines like ecgs (exercise bikes with the metal patches, heart rate monitors, etc) but which generate a relatively weak pulse which is hard to feel and difficult for blood pressure cuffs and pulse oximeters to detect. ...Read more
All the way back: The aorta essentially runs adjacent to your spinal column, so from the front of your stomach it's all the way back. ...Read more
Could you tell me what is the percentage of oxygen returned to the heart after it leaves the lungs?
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