Anatomy Flashcards
CSF composition
no more the 5 lymphocytes: usually sterile pH: 7.35 Specific gravity: 1.007 Glucose: 66% of plasma glucose Total protein:
Normal pressure in CSF
80-180 mm/H2O
Area postrema location
CTZ zone for emesis
located in floor of fourth ventricle
Pineal gland is made up of
pinealocytes (epiphyseal cells)
derived from diencephalon
Pineal gland innervation
Solely via postganglionic fibers from superior cervical ganglion of ANS
Pineal body synthesizes
Serotonin and melatonin
Total volume of CSF in subarachnoid space and ventricles?
amount made by choroid plexus per day?
- 140 ml
2. 500 ml
Choroid plexus is located in
3 ventricle
Ambient cisterna contains
Trochlear Nerve CNIV
Veins in spinal canal are
within subarachnoid space
are valveless vein that perimit bidirectional flow depending on pressure gradient
ACA supplies
medial surface of frontal and parietal lobes, corpus collosum
ACA is motor/sensory of
Leg and foot
ACA supplies caudate nucleus, putamen and anterior limb of Internal Capsule via….
Medial striate artery of Heubner
MCA supplies
lateral hemisphere and insula
MCA motor/sensory of
Trunk, Arm, Face area
Broca and Wernicke speech areas
MCA supplies caudate, putamen, globus pallidus, and ant/post limbs of Internal capsules via….
Lateral striate arteries
PICA supplies what in medulla
dorsolateral zone
PICA supplies what brain parts
Inferior surface of cerebellum and choriod plexus in 4th ventricle
Inferior Cerebral peduncle
Nucleus ambigious
PICA supplies what tracts
Medial/inferior vestibular nuclei CN IX; CN X Spinothalamic tract Spinal trigeminal nucleus/tract Hypothalamospinal tract to ciliospincal center of Budge T1-T2 (Horner Syndrome)
Pontine arteries supply what CN
VI: abducent
AICA supplies what brain structures
Inferior surface of cerebellum
Inferior/middle cerebellar peduncle
Labrynthine artery supplied from where?
goes to what?
- 15% basilar artery; 85% AICA
2. perfuses cochlea and vestibular apparatus
AICA supplies what tracts
Facial nucleus Spinal Trigeminal nucleus/tract Vestibular Nucleus Cochlear nuclei Vestibulocochlear nerve Spinothalamic tract hypothalamospinal tract (horners)
Superior cerebellar artery supplies
Superior surface of cerebellum and dentate nucleus
Rostral/lateral pons
Superior cerebellar peduncle
Spinothalamic tract
PCA supplies what
Thalamus + MGB/LGB
Occipital lobe, visual cortex
inferior surface of temporal lobe+ hippocampal formation
PCA gives rise to (1) and they supply (2)
- Lateral and medical posterior choroidal arteries
- dorsal thalamus
Pineal body
choroid plexus in 3rd and lateral ventricles