Select your answer:
Topics:
Micro Immunology Muscular System Life Cycle - Bee Digestive System (Gastroenterology) Pharmacology Calculations Infectious Diseases & the WHO Regulation of Heart Rate Axial & Appendicular Skeleton Endocrine System and Nervous System Anatomy Bones The Cell Cycle Diabetes Pathophysiology Neuroanatomy of CNS Transportation Pain ManagementOther quiz:
Respiratory and Circulatory › ViewThe dome-shaped muscle that helps you breathe.
A. diaphragm
B. lungs
C. stomach
D. bicep
Genetics › View
The heart and blood vessels are in which system?
A. digestive
B. circulatory
C. respiratory
D. nervous