JAMB - Biology (2018 - No. 60)
The outer membrane that covers the brain is
Myelin sheath
Dura mater
Arachnoid membrane
Pia mater
Forklaring
Dura mater is a membrane that envelops the arachnoid mater. It surrounds and supports the dural sinuses (also called dural venous sinuses, cerebral sinuses, or cranial sinuses) and carries blood from the brain toward the heart