Select your answer:
Topics:
EMS Systems Dimensions of Wellness Bone Physiology Thyroid Gland Joints in our Body CABG Surgery Respiratory Diseases Eye in Color Vision Cosmetology Functional Anatomy in Track & Field Biochemistry Organelles Human Anatomy and Physiology - Types of Tissues Circulatory, Artery, Vein - basics Disease and Conditions Skeletal SystemOther quiz:
Cardiology › ViewWhat term describes a disease or condition that arises spontaneously or for which the cause is unknown?
A. Idiopathic
B. Acute
C. Segment
D. Vector
Pathophysiology › View
The air we breathe in (ambient room air) from the room/outside has approximately ______ oxygen.
A. 100%
B. 50%
C. 21%
D. 11%