What period follows depolarization of the myocardium and represents a period during which no new cardiac potential can be propagated?
During the refractory period, no new cardiac action potential can be initiated by a stimulus. This selection is the only option that accurately identifies the period described in the question.
What is the suggested mean blood pressure for an 8- to 9-year-old child?
106/58 mm Hg
104/55 mm Hg
112/62 mm Hg
121/70 mm Hg
The suggested mean blood pressure for an 8- to 9- year-old child is 106/58 mm Hg. For a child of 6 to 7 years old, 104/55 mm Hg is appropriate; for a 12- to 13-year-old child, 112/62 mm Hg is appropriate, and for a 16- to 18-year-old young man, 121/70 mm Hg is appropriate.
Which is an example of an endogenous antigen?
Of the options provided, endogenous antigens include only those uniquely produced by cancerous cells.
- This solution has not purchased yet.
- Submitted On 15 Feb, 2020 12:12:43