Brain Flashcards
What area is responsible for motor speech
Broca’s
Where is Broca’s area
Dominant frontal lobe
Prosidy (whether sensory or motor) is in the ________ hemisphere
Non dominant
Thalamus: vision
Lateral geniculate nucleus
Thalamus: hearing
Medial geniculate nucleus
Thalamus: sensation, conscious propriception, taste
Ventralposterior
What ventricle does CSF enter circulation
4th
T or F: all ventricles have choroid plexus
True (all need CSF)
Foramen of Lushka
Lateral aperatures (paired in 4th ventricle) ; CSF -> subarachnoid space
Median aperature
Opening in 4th ventricle; CSF -> subarachnoid
How does CSF return to circulation
Arachnoid granulations -> dural venous sinuses
+
Along nerves (cranial & spinal) => lymphatics
How is CSF like tissue fluid
Made from arterial blood, returned to venous blood
Which nerve does CSF especially travel along
Olfactory -> nasal sinus
What is between lateral ventricles and third ventricle
Interventricular foramen
2 causes of hydrocephalus
Obstructive (usually cerebral aqueduct blocked - full upstream, ok downstream : large lateral, third; ok fourth)
OR
AFTER hemmorhagic stroke; blood fills; impairs removal of CSF (all ventricles enlarged)
