Brain (test #3) Flashcards
(32 cards)
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
GOOD SUMMARY OF BONES
head-slide 9
what makes up the diencephalon?
- thalamus
- hypothalamus
what makes up the brainstem?
- midbrain
- pons
- medulla oblongata
what is the largest fibre pathway in brain linking left and right cerebral hemispheres?
corpus callosum
what are the 4 parts of the corpus callosum from anterior to posterior?
- rostrum
- Genu (anterior)
- Isthmus (body)
- Splenium
what forms the anterior, superior and posterior border around the lateral ventricles
corpus callosum
what are the ventricles of the brain function?
are a communicating network of cavities filled with cerebrospinal fluid (CSF) and located within the brain parenchyma
what is the ventricular system composed of?
2 lateral ventricles
3rd ventricle
cerebral aqueduct
fourth ventricle
what are the choroid plexus’?
located within the ventricles and produce CSF