Lab 7 Flashcards
CNS contains
brain and spinal cord
PNS contains
cranial and spinal nerves
Meninges
connective tissue layers surrounding the brain
Layers of Meninges
Dura mater
Arachnoid mater
Subarachnoid space
Pia Mater
Dura Matter
outmost, protective layer of the brain;
helps partition brain
Arachnoid matter
middle layer of Meninges;
seen as fine sheet of tissue spanning grooves on brain surface
Subarachnoid space
located beneath arachnoid matter;
filled with cerebrospinal fluid;
contains large blood vessels;
Pia matter
delicate inner layer of meninges;
follows ridges and grooves of brain
Four major regions of the brain
cerebrum
diencephalon
brain stem
cerebellum
Cerebrum
largest portion of brain;
divided into lobes
Gyri (Gyrus)
ridges of the cerebrum
Sulci (Sulcus)
deep grooves in the cerebrum
Lobes of the cerebrum
frontal, parietal, occipital, temporal lobes
