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Brain and Cranial Cavity - UNC MS1 Anatomy
Brain and Cranial Cavity - UNC MS1 Anatomy
26
Anatomy
Graduate
12/07/2011

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Term
what are the layers of the scalp?
Definition
skin, connective tissue (dense), aponeurosis, loose connective tissue, pericranium (SCALP)
Term
what are the veins of the skull?
Definition
diploic - in the calvaria
emissary - connect veins outside of skull to dural venous sinuses
Term
what is the danger area of the skull where infection can spread?
Definition
loose connective tissue layer
Term
where can a scalp infection spread?
Definition
eyes and nose root.
NOT neck (due to occipitalis muscle) or cheeks (due to temporal fascia)
Term
what artery runs through the dura mater?
Definition
middle meningeal artery
Term
what dural partition covers the hypophyseal fossa and protects the pituitary?
Definition
diaphragma sellae (aka sellar diaphragm).
is a double layer of meningeal dura
Term
what causes a subdural hematoma?
Definition
head trauma that shakes the brain, tearing cerebral veins
Term
what causes a subarachnoid hemmorrhage?
Definition
cerebral arteries bleeding due to aneurysm rupture or trauma
Term
what are the 5 parts of the brain?
Definition
telencephalon, diencephalon, mesencephalon, metencephalon, myelencephalon
Term
what constitutes the diencephalon?
Definition
thalamus, hypothalamus, pituitary
Term
what constitutes the mesencephalon?
Definition
midbrain - cerebral peduncles, colliculi, part of brainstem, aqueduct
Term
what constitutes the metencephalon?
Definition
cerebellum, pons, part of brainstem
Term
what constitutes the mylencephalon?
Definition
medulla oblongata, part of brainstem
Term
what do the thalamus and hypothalamus do?
Definition
thalamus - relay and processing center for sensory info
hypothalamus - controls emotions, autonomic functions, and hormone production
Term
what nerve inserts under the inferior colliculi in the mesencephalon?
Definition
trochlear nerve
Term
what is in between the two cerebellar hemispheres?
Definition
vermis
Term
what arteries does the oculomotor nerve pass between?
Definition
posterior cerebral and superior cerebellar
Term
what arteries does the abducens nerve pass between?
Definition
labyrinthine and anterior inferior cerebellar
Term
what three bones form the anterior cranial fossa?
Definition
frontal, ethmoid, and sphenoid
Term
what passes through the foramen cecum?
Definition
emissary veins going to nasal cavity from superior sagittal sinus
Term
what two bones form the anterior cranial fossa?
Definition
temporal and sphenoid
Term
what are the foramina for the trigeminal nerves (V1-3)?
Definition
SRO - "standing room only"
superior orbital fissure - V1
foramen rotundum - V2
foramen ovale - V3
Term
what passes through the foramen lacerum?
Definition
Nothing! plugged over by cartilage
Term
what forms the posterior cranial fossa?
Definition
occipital and temporal bones
Term
what runs through the cavernous sinus?
Definition
internal carotid artery, CN III, IV, V1 and V2, and VI
Term
where is CSF made?
Definition
choroid plexus
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