Blood is blue before it reaches oxygen. this is why your veins are blue
Answer:
Explanation:
Cavities accommodate organs and other structures; cavities as potential spaces contain fluid. The two largest human body cavities are the ventral body cavity, and the dorsal body cavity. In the dorsal body cavity the brain and spinal cord are located.
Anna’s fetal scans showed some abnormality. Which of the following
procedure can help her know more about the abnormality?
-Amniocentesis