Brain (test #3) Flashcards
what are the layers in the scalp?
S- skin
C-connective tissue
(Subcutaneous fat and fibrous tissue that holds nerves and vessels)
A-aponeurosis (dense fibrous tissue)
L-loose areolar Tissue (Contains collagen and allows upper layers to move around)
P-periosteum
what is the layer of the brain from superficial to deep?
- dura mater
- arachnoid mater
- pia mater
what are the 2 layers of the dura mater?
- endosteal layer
- meningeal layer
which layer do vessels flow in the layers of the brain?
arachnoid layer
which brain layer has villi?
arachnoid layer (villi protrude into Dural venous sinuses)
which layer of the brain is continuous with the contours of the brain?
pia mater
Gyrus
outpouching part of the brain (mountain)
sulcus
portion of the brain that is recessed (valley)
what divides the frontal and parietal lobes?
central sulcus
what divides the temporal lobe below from frontal and parietal lobes above?
sylvian fissure (x2) ENDS IN THE INSULA
what divides the frontal bone from the parietal bones?
coronal suture
what divides the 2 parietal bones?
sagittal suture
what divides the parietal lobes from the occipital lobes?
lambdoid suture
fontanelles
skull sutures have not yet ossified
when do fontanelles ossify?
18 months