Adrop in blood oxygen levels will stimulate an increase in the heart rate.
a. true
b. false

a. True

Explanation:

The aortic and carotid body chemoreceptors can sense oxygen levels in the blood. An increase in the heart rate occurs so as compensate for a decrease in systemic blood oxygen levels to prevent oxygen deprivation to organs.

explanation:

for example, code 28039 - excision, tumor, soft tissue of foot or toe, subcutaneous, 1.5 cm or greater, appears before 28043 - excision, tumor, soft tissue of foot or toe, subcutaneous; less than 1.5 cm.

auricle

explanation:

the flaps on the front of the atria are called the auricle.