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A measure of how tightly matter is packed?
Density is a measure of how tightly matter is packed. It is calculated by dividing the mass of an object by its volume. The higher the density, the more mass is packed into a given volume.
Does increasing arterial blood pressure increases blood flow?
YES! Changes in blood volume affect arterial pressure by changing cardiac output. An increase in blood volume increases central venous pressure. This increases right atrial pressure, right ventricular end - diastolic pressure and volume. This increase in ventricular preload increases ventricular stroke volume by the Frank - Starling mechanism. An increase in right ventricular stroke volume increases pulmonary venous blood flow to the left ventricular, thereby increasing left ventricular preload and stroke volume. An increase in stroke volume then increases cardiac output and arterial blood pressure. answered by HappyNess0423
What contains the greater volume of blood arterial or venous system?
our total blood volume is unevenly distributed amongst the arteries, veins and capillaries. The heart, arteries , pulmonary and systemic circuits contain about 1.5 liters of whole blood. The venous system contains 3.5 liters, which is circulating within the liveer, bone marrow and skin.
Why haematocrit is more in venous blood?
The changes that take place in the red cell as it traverses the body's capillaries (such as exchange of oxygen and carbon dioxide), lead to a slight increase in red cell osmolarity in the venous blood (ie, there are more molecular particles inside the red cell). This causes the movement of extra water into the red cell (via a process called osmosis), causing them to swell slightly (and increasing the red cell's volume). As haematocrit is equal to the red cell volume divided by the entire blood volume, this leads to a slightly higher haematocrit in venous blood as opposed to arterial blood.
What can density be described as?
Density can be described as the mass of a substance per unit volume. It is a measure of how tightly packed the particles in a material are. Substances with higher density have more mass packed into a given volume.
Will a high density have a lower or higher number?
A high density will have a higher number, as density is calculated by dividing mass by volume. The result is a measure of how much mass is present in a given volume, so a higher density means there is more mass packed into that volume.
Is the density higher or lower when the particles are closer in a substance?
The density is higher when the particles are closer together in a substance because there is more mass packed into a given volume. This leads to a higher mass per unit volume, which is the definition of density.
What increases stroke volume?
increase venous return
What compares an objects mass to it's volume?
density
What is the main idea of density?
Density is a measure of how much mass is contained in a given volume of a substance. It indicates how closely packed the particles are in a material. Objects with higher density have more mass packed into a smaller volume than objects with lower density.
What measures how tightly atoms are packed together in a ceartain space?
Atomic density measures how tightly atoms are packed together in a certain space. It is calculated by dividing the total number of atoms by the volume they occupy. The higher the atomic density, the more closely packed the atoms are.
The of any amount of a solid liquid or gas relative to its volume is called it's density?
VOLUME
