General anatomy Flashcards
What are the functional divisions of the cerebellum?
Vestibulocerebellum
Spinocerebellum
Pontocerebellum
What does the vetibulocerebellum do?
Balance, spatial orientation and muscular tone
What does the Spinocerebellum do?
Sensing proprioceptive input
Adapting the body to changing circumstances
What does the Pontocerebellum do?
Regulate small limb movements, inhibits involuntary movements
What is dura matter?
Stong, thick dense membrane
supports and surrounds dura sinuses
What is arachnoid matter?
Middle layer
Surrounds spinal cord and brain
What is pia matter?
Innermost layer
Thin fibrous tissue, covering outside by flat cells
What is extradural space?
Potential space inside the cranial vault
Only noticable if underlying pathology
What is subdural space?
Space that can opened by separation of arachnoid mater from dura matter
Result from trauma
Pathologic absence of CSF
Sulcus
Grooves in cortex
TWO S’s
Fissure
Large furrow that divides the brain lobes
Gyrus
Ridge of cerebral cortex
Insula
Small region of cerebral cortex located deep within lateral sulcus
Longitudinal fissure
Deep groove that separates the left and right hemisphere
Lateral fissure
Divide both the frontal and parietal lobe from temporal lobe