Neuroanatomy 1 Flashcards
what are the 5 layers of the scalp
skin, connective tissue dense, aponeuroses, loose connective tissue, periosteum
what makes the sinuses in the CNS
the separations of the periosteal and meningeal layers of the dura mater
where do we find the superior and inferior saggital sinuses
inside the superior and inferior portions of the falx cerebri
what is the corpus callosum
a large tract of commisural fibres as this is the main tract connecting the two brain hemispheres
whats the point of attachment for the falx cerebri
crista galli
whats the foramen that the middle meningeal artery passes through
foramen spinosum
what goes through the foramen lacerum
the internal carotid artery runs along the carotid canal, then turns upwards to the foramen but doesn’t go through. so nothing
where is the cavernous sinus
either side of the sella turcica
whats the drainage path of cavernous sinus
either the inferior petrosal to IJV
or superior petrosal, transverse, sigmoid to IJV
the 3rd ventricle lateral wall is formed by what nuclei
the thalamus and hypothalamus
what are the four parts of the diencephalon
thalamus, hypothalamus, epithalamus, pituitary gland
posterior to anterior what are the parts of the corpus callosum called
splenium, body, genu, rostrum
whats the striatum
the caudate nucleus plus the putamen
whats the corpus striatum
the lentinform plus the caudate nucleus
what comprises our basal ganglia
corpus striatum ( lentiform ( globus pallidus + putamen) + caudate nucleus) plus the subthalamic nuclei + substantia nigra
what makes the anterior limb of the internal capsule
the head of the caudate and the lentiform
what makes the posterior limb of the caudate nucleus
the thalamus plus the lentiform
what divides the extreme, external, and internal capsules
the claustrum divides the extreme and external. the lentiform nucleus divides the external from internal.
why are there enlargements in the spinal cord
this is where the lumbosacral and the brachial plexus arise, so these regions are the points where the limb nerve innervation arises
what are our cisterns
enlargements of the subarachnoid space
what are the names of our cisterns
interpeduncular, superior, pontine, cisterna magna
what are the parts to our lateral ventricles
anterior horn, posterior horn, inferior horn
whats the path of CSF
lateral ventricles -> interventricular foramen -> 3rd ventricle _> cerebral aqueduct -> 4th ventricle -> exit via median aperture -> cisterna magna ->then fills rest of subarachnoid -> enters the venous sinuses at arachnoid granulations.
what forms the lateral wall of the anterior horn of the lateral ventricle
head of the caudate nucleus
what forms the medial wall of the inferior horn of the lateral ventricles
the hippocampus and fibria of the fornix
