What is the role action potential in muscle contration include Ca2 + ion and ATP ?

Knowing if a patient has tuberculosis, hepatitis b, or aids is important because a. serious illnesses should be avoided. b. they could compromise the vital sign readings. c. cross-infection may occur. d. they can't be cured.

The heart and lung are located in which cavity ? thoracic

If a doctor needs using a medical imaging machine, a might be called to assist the doctor.