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What is the function of the capillary muscle?
The only muscle that is a functional part of the capillary system are part of the pre-capillary sphincters. It is smooth muscle encircling the arterial end of a capillary and controls the blood flow. Not every cell is getting blood at every second for seconds at a time capillary can be shut of to direct blood to other parts of the tissue that need it.
What is the function of the capillary muscles?
The only muscle that is a functional part of the capillary system are part of the pre-capillary sphincters. It is smooth muscle encircling the arterial end of a capillary and controls the blood flow. Not every cell is getting blood at every second for seconds at a time capillary can be shut of to direct blood to other parts of the tissue that need it.
Compare the strength of arterial walls and capillary walls?
arterial walls has smooth muscle and elastic fibers (strong and flexible) and capillaries are made up of a single layer of endothelial cells (thin).
How do venous pressures compare to arterial pressures?
Much lower... because arterial walls get their pressure via force of the left ventricle pumping into the arteries. Veins are not exposed to such force and get their pressure via muscle pumps.Much lower... because arterial walls get their pressure via force of the left ventricle pumping into the arteries. Veins are not exposed to such force and get their pressure via muscle pumps.
Why arterioles6 times thicker than the average venule?
The arterioles wall contains smooth muscle and elastic fibers and is six times thicker to handle the higher pressure in the arterioles. The venule is like a giant capillary.
Is the amount of blood transporter to the muscle the arterial oxygen difference?
the arterial oxygen difference is
Gas exchange in the muscle takes place in the?
Capillary beds of the muscle
How is oxygen unloaded from the arterial blood to the muscle and carbon dioxide removed from the muscle into the venous blood?
Oxygen (O2) is delivered via artery to capillary to muscle tissue where its used in metabolism resulting in CO2; then CO2 goes from muscle tissue to venous system to pulmonary(lung) system where CO2 is exchanged for O2, then returned to the heart for recirculation.
Why do arteries have more smooth muscle than veins?
arteries experience higher blood pressure.. apex huh?
What is the normal blood pressure number for a 50 year old?
he cardiac cycle (heart beat) consists of cardiac muscle contraction (systole) and cardiac muscle relaxation (diastole). Blood pressure represents the force (pressure) exerted by blood against the arterial walls during a cardiac cycle. Systolic blood pressure, the higher of the two pressure measurements, occurs during ventricular contraction (systole) as the heart pumps blood into the aorta. After systole, the ventricles relax (diastole), arterial pressure declines and the heart refills with blood. The lowest pressure reached during ventricular relaxation represents the diastolic blood pressure. Normal systolic blood pressure in an adult varies between 110 and 140 mm Hg, and diastolic pressure varies between 60 and 90 mm Hg.
What is the difference from systolic blood pressure and diastolic blood pressure?
Systolic (the higher number) is a reading of the pressure in your blood vessels when your heart is beating at its maximum strength. Diastolic (the lower number) tells you what the pressure is in your blood vessels when your heart is at rest.
What part of the arterial wall contains smooth muscle?
Tunica media
