Stimulation of _______________ result in an increase in heart rate, cardiac contractile force, increased automaticity, and increased conduction
a. Alpha1
b. Beta1
c. Beta2
d. Dopaminergic
b
Rationale: a. Results in peripheral vasoconstriction, mild bronchoconstriction, and stimulation of metabolism.
b. Correct.
c. Beta2 stimulation causes vasodilation and bronchodilation.
d. Thought to cause dilation of the renal, coronary, and cerebral arteries.
You might also like to view...
In 1240 CE, the Emperor of Germany and King of Sicily, ________, presented the first European edict completely separating the responsibilities of pharmacy and medicine
A) Frederick II B) James I and VI C) George III D) Hohenstaufen II
The formed elements of blood that help with clotting are called:
A) red blood cells. B) plasma. C) platelets. D) white blood cells.
After jogging with your friend for about 30 minutes, she stops and asks why your heart rate increases and your heart feels like it is pumping harder after you exercise for a while. Based on your understanding of the cardiovascular system, your best response would be which of the following statements?
a. "You're out of shape. Those things wouldn't happen if you exercised more." b. "Exercise makes your body need more nutrients and oxygen; your heart pumps harder and faster to deliver more blood containing those things to your muscles." c. "When you exercise, your blood pressure increases, so your heart has to work harder to overcome the higher blood pressure." d. "Exercise pushes more blood into your heart, so your heart has to work harder and faster to pump the blood out so you don't go into heart failure."
Why is periodontal treatment performed?
What will be an ideal response?