yes when sphincter's are closed the blood flows through shunts and by pass the tissues
That is a very good question! In case of the fetus, the blood flow through the lungs is closed. So most of the blood passes through the foramen ovale to left atrium. Some blood goes to right ventricle. it is pumped by the right ventricle into pulmonary aorta. This blood passes to systemic aorta via ductus arteriosus. Both the blood flows stops after the birth of the baby. Baby takes a first breath. Blood starts to flow through the lungs. Due to pressure changes the foramen ovale get closed. By the same reason the ductus arteriosus get closed, as the circular muscles of the artery can contract.
closed. Open circulatory systems are common in athropods, such as scorpions and insects, but not of mammals. They are when the body lacks blood vessels but has blood throughout the entire cavity of the body. Mammals have closed circulatory systems, as they contain blood vessels.
Depends on the plant. Some plants need direct sunlight some plants need shaded sunlight. I there is no sunlight then the plant will slowly die
closed fracture
closed and closed
When the thermostat is closed, the coolant circulates through the bypass hose from the water pump to the block.When the thermostat is closed, the coolant circulates through the bypass hose from the water pump to the block.
To allow coolant circulation through the engine when the thermostat is closed.
Bypass
does the bypass valve on elution heater be open or closed
They are variable controls which can open to allow the passage of material and then closed to prevent further passage of materials. If you didn't have an anal sphincter you'd really have problems.
The compressor antisurge valve opens to bypass flow from discharge to suction. This allows the compressor to flow through bypass and keeps the compressor from surging (reverse flow thru compressor). The discharge pressure does not continue to build due to closed discharge conditions.
Parts of Broadway are closed off to traffic.
Muscles provide movement, especially the skeletal muscles. The smooth muscles in our organs produce movement called peristalsis or tonic contraction which holds sphincters closed.
A bypass for when the thermostat is closed (before warmed up)
Bypass surgery and angioplasty are treatments for removing or "going around" a narrow or closed artery, usually a coronary (heart) artery.
It is a closed syllable.
A 'bypass' closed door is a type of closet door that has a double track system with double doors. One door is on one track and the other door is on the other track allowing them to slide past each other.