Anatomy and Cell Biology 3319 Chapter Notes -Ventriculomegaly, Potential Space, Nicotine

• School: Western University
• Department: Anatomy and Cell Biology
• Course: Anatomy and Cell Biology 3319
• Professor: Kem Rogers

Document Summary

Median aperture: holes connect the ventricles with subarachnoid space surrounds the whole. Cns: connection allows cerebrospinal fluid to fill both the ventricles & subarachnoid space, fourth ventricle connects caudally to the central canal of the inferior medulla & spinal cord. Lies in median plane in longitudinal fissure (between l & r hemispheres) Attaches anteriorly to crista galli of ethmoid bone. Lies in transverse fissure - separates cerebrum & cerebellum. Transverse sinus is enclosed by tentorium cerebelli. Brain stem passes through tentorial notch (hole in middle: diaphragma sellae . Sheet covering pituitary fossa - pituitary gland. Central opening for infundibulum: falx cerebelli (d) Continuing inferiorly from posterior part of falx cerebri. Vertical partition that runs along vermis of cerebellum in posterior cranial fossa. Dural venous sinus: endothelial-lined, valveless vessels within the dura mater, receive blood from many veins. Superior sagittal sinus: within fixed margin of falx cerebri, receives arachnoid granulations (csf circulation, turns right to form right transverse sinus.