Lab 1-Gross Brain I Flashcards
Arachnoid villi
Aka granulations
Project through dura to venous sinuses
Allows CSF to exit
Arachnoid
1/2 of the CT coverings (leptomeninges) of CNS
Between pia and dura, trabeculae to pia that closely invest BVs on pia
Basilar artery
On ventral side of brain stem to circle of Willis caudally
Carotid rete (rete mirable)
Sheep and cat: branch of maxillary. Retes lie in cavernous sinus
Heat countercurrent exchange
Rete arterioles–>circle of Willis to cool brain
Caudal cerebellar artery
?
Caudal communicating arteries
?
Cavernous sinus
?
Central nervous system
?
Cerebral aqueduct of Sylvius (mesencephalic aqueduct)
?
Cerebral arterial circle (circle of Willis)
?
Cerebrospinal fluid
Choroid plexus–>lateral ventricles–>foramen of Monro–>3rd ventricle–>cerebral aqueduct–>4th ventricle–>subarachnoid space–>out via arachnoid villi–>venous sinus
Cushions/protects, removes metabolites, peptide hormones
Choroid plexus
?
Cisterna magna
?
Corpus collosum
?
Dorsal sagittal sinus
?
Dura mater
?
Ependyma
?
Falx cerebri
?
Fourth ventricle
?
Hypophysis (pituitary gland)
?
Internal carotid artery
?
Interventricular foramen (foramen of monro)
?
Lateral recess of fourth ventricle
?
Lateral ventricles
?
