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What is the difference between perfusion and flow?
Flow is the amount of blood flowing through an organ, tissue or vessel at a given time. Perfusion is the flow per given volume or mass of tissue. Thus a large organ could have greater flow but less perfusion then a small one such as an ovary because the ovary receives much more blood per gram of tissue.
IS the adjustment of blood flow to each tissue in proportion to its requirements at any point in time termed autoregulation?
No, the adjustment of blood flow to each tissue in proportion to its requirements at any point in time is termed tissue autoregulation. Autoregulation refers to the ability of an organ or tissue to regulate its own blood flow independent of systemic factors.
What happens when blood doesn't flow to an organ?
When blood flow is restricted or blocked to an organ, it can lead to tissue damage or organ failure due to lack of oxygen and nutrients. This can result in cell death and potentially life-threatening complications if not addressed promptly. Treatment often involves restoring blood flow through medications, procedures, or surgery.
What does lateral ischemia mean?
Lateral ischemia refers to reduced blood flow or oxygen supply to the lateral part of an organ or tissue. This can lead to tissue damage or dysfunction in the lateral area affected by the restricted blood flow.
Decrease in size of organ or tissue?
The decrease in size of an organ or tissue is known as atrophy. This can occur due to disuse, lack of nourishment, reduced blood flow, or hormonal changes. Atrophy can lead to functional impairment of the affected organ or tissue.
What is the term for lack of blood supply to a tissue or organ?
The term most often used is infarction for a complete lack of blood flow to a particular organ (most often used when referring to a muscle such as the heart or skeletal muscle), or ischaemia for severely reduced blood flow. If you are simply referring to a reduced amount of oxygen then tissue hypoxia may apply.
What happens to an organ in your body if blood supply to it is cut off?
If blood supply to an organ is cut off, it can lead to tissue damage and cell death due to lack of oxygen and nutrients. This condition is known as ischemia. If left untreated, it can result in serious consequences such as organ failure or tissue necrosis. Treatment usually involves restoring blood flow to the affected organ as quickly as possible.
What Operative procedures that improve blood supply to an organ?
Operative procedures that improve blood supply to an organ include vascular bypass surgery, angioplasty, and thrombectomy. These procedures are designed to bypass or clear blockages in the blood vessels supplying the organ to restore adequate blood flow and prevent tissue damage.
What is tissue perfusion?
Blood flow and tissue perfusion are NOT the same thing. An increase in blood flow does not always mean that there is a parallel increase in tissue perfusion. While blood flow is generally understood as an increase in the total amount of blood flowing into an anatomic structure or region, tissue perfusion is the amount of blood that actually flow through the capillaries of the vascular bed of that structure or region. The important thing to remember is that nutrients and oxygen are delivered to the cells via the capillaries.
Term for flow of blood through an organ?
The term perfusion is used to indicate the flow of blood by means of vessels of an organ. It is the movement of the blood through the blood streams.
What type of blood flow is needed for muscle tissue?
The type of blood flow that is needed for muscle tissue is skeletal muscle blood flow. Skeletal muscle blood flow is important for both voluntary and involuntary muscles.
How can a vibrating pillow help you if your blood is not flowing well?
Vibration can disrupt formation of blood clots and vasodilate a blood vessel - both situations improving blood flow within the vessel. Vibraton may also relax the receiving organ's tissue hence allowing for better tissue perfusion. Vibration may also decrease blood viscocity - again enhancing blood flow.
