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What is the relationship between the surface area and the volume of a cell as one increases or decreases so does the other?
Remember that as the diameter of a spherical cell increases, the surface area increases as the square of the diameter, and the volume increases as the cube of the diameter, so volume increases much faster than surface area. The same principle applies for other shapes than spherical cells, but the math is more complicated.
As the diameter of the circle increases what happens to the circumference?
The circumference of a circle increases with an increase in the radius as it is directly proportional its radius.
Where does regulation of peripheral resistance occurs most often?
Arterioles
What happens to the area of a circle when the radius is doubled tripled?
The area increases as the square of the radius (or diameter). So if you double the radius you * 4 (quadruple) the area. Treble the radius, you *9 the area.
What happens to the area of a circle if the diameter is doubled?
If you double the diameter of a circle, the area will quadruple (be 4x greater).The area of the circle increases exponentially with the diameter, or more precisely with the radius, which is 1/2 the diameter. A = (pi)r2Doubling the diameter of a circle will quadruple the area (22 =4).This is easily seen in pizzas, where the dough needed for a 16-inch pizza can be used instead to make 4 pizzas with a diameter of 8 inches.---The equation to find the area of a circle is a=(pi)r2. If the diameter is doubled, then the radius is also doubled, because the radius is just half the diameter.The area of a circle once its radius (and therefore diameter) has been doubled can be expressed as follows: a'=(pi)(2r)2, which simplifies to a'=(pi)(4r2).To find the proportion of a' and a, we just divide the second by the first. This gets us[(pi)(4r2)]/[(pi)(r2)]=4
Is the diameter of the lumen larger in arteries or in capillaries?
Arteries have the largest diameter, then arterioles, and last, capillaries.
Where are arterioles located?
Arterioles are small diameter vessels that branch off of your arteries. They inevitably connect arteries to capillaries. You can find them pretty much anywhere in your body
What are arterioles in the skin and digits?
It is basically a blood vessel (vein) except it is much smaller in diameter.
What controls the diameter of the arterioles and what do changes in diameter affect?
The diameter of arterioles is primarily controlled by changes in smooth muscle tone in their walls. Constriction of arterioles leads to increased vascular resistance and higher blood pressure, while dilation results in decreased resistance and lower blood pressure. Changes in arteriolar diameter can affect local blood flow, regulate blood pressure, and influence organ perfusion.
What Site has the greatest resistance to blood flow?
The site with the greatest resistance to blood flow is the arterioles, which are small branches of arteries. Arterioles have a high resistance due to their small diameter and ability to regulate blood flow to tissues. This resistance plays a key role in maintaining blood pressure and distributing blood throughout the body.
What decreases blood flow through arterioles?
Vasoconstriction of an arteriole increases resistance and results in decreased flow through that particular arteriole.
Axon diameter increases noticeably at the nodes of ranvier What purpose does this serve?
the axonal diameter increases due to the myelin wraped tightly around the axon.
Know relationships and differences between Afferent vs efferent arterioles?
Afferent arterioles bring blood into the glomerulus for filtration, while efferent arterioles carry blood away from the glomerulus after filtration. Afferent arterioles have a larger diameter compared to efferent arterioles, contributing to the high pressure needed for filtration in the glomerulus. The constriction or dilation of these arterioles helps regulate blood flow and pressure within the kidneys.
What is it called when a bone increases in size?
When the bone increases in diameter, it is called appositional growth.
What did you notice about the diameter of the parent droplets as you increased the height of the drop?
the diameter increases as the height is increased
Do arterioles have the ability to constrict and dialate?
The Arterioles, which are smaller branches of the Arteries need to expand and contract. Reason being, the Arterioles are what control / regulate our blood pressure. When blood enters the Arterioles from the Arteries, they either contract or expand, which alters the amount and resistance of blood flow through them. If they remain contracted for any reason, this will make the heart pump harder due to the resistance, which will result in Hypertension, or high blood pressure. The arterioles, which are made up of smooth muscle, also carry blood to your capillaries, where the exchange of gases (O2 & CO2) takes place. O2 = Oxygen which we breathe in CO2 = Carbon Dioxide which we exhale
What happens to the diameter when heating a circular disc?
It increases.
