D) Vasodilation is when your blood vessels get larger to allow more blood to pass through. What is the effect of vasodilation on your blood
pressure? (1 point)
your blood pressure decreases (gets lower)
your blood pressure increases (gets higher)
your blood pressure decreases (gets lower)
E) If your body temperature increases (you get hot) happens to your rate of perspiration? Do you sweat more or less? (1 point)
no change occurs
your rate of perspiration increases (you sweat more to cool off)
your rate of perspiration decreases (you sweat less to stay warm)
your rate of perspiration increases (you sweat more to cool off)
F) As your blood sugar drops, your body will release what chemical to stabilize it (bring it back to normal)? (1 point)
insulin
glucagon
carbon dioxide
oxygen
glucagon
G)
Read the section about Heart Rate, and answer the following.
How to adjust the heart and respiration rates if the body's oxygen level drops too low?
(2 points)
Increase heart rate and decrease respiration rate
Decrease heart rate and respiration rate
Decrease heart rate and increase respiration rate
Increase heart rate and respiration rate
Increase heart rate and respiration rate
H)
Read the section about Respiration and answer the question that follows.
What controls how fact you breathe?
(2 points)
temperature of the body
level of oxygen in the body
level of carbon dioxide in the body
blood pressure in the body
level of carbon dioxide in the body
The effect of vasodilation on blood pressure is that it decreases or gets lower. When blood vessels dilate, specifically the arteries and arterioles (smaller arteries), the diameter of these vessels increases. This allows for increased blood flow and decreases resistance to blood flow. Consequently, the pressure exerted on the vessel walls by the blood, which is known as blood pressure, decreases.
To understand this concept, consider the equation for blood pressure: Blood Pressure = Cardiac Output x Peripheral Resistance.
Cardiac output refers to the amount of blood pumped by the heart per minute, while peripheral resistance refers to the resistance encountered by blood flow as it moves through the blood vessels.
Vasodilation specifically affects peripheral resistance. By enlarging the blood vessels, the resistance to blood flow decreases. As a result, the blood pressure decreases.
It's worth noting that there are other factors that impact blood pressure regulation, such as heart rate, blood volume, and the elasticity of blood vessels. Nonetheless, in the scenario of vasodilation, the effect on blood pressure is a decrease or lowering.