Week 1 - wet room Flashcards
3 parts of brainstem
midbrain, pons, medulla
Which 2 vesicles give rise to brainstem?
mesencephalon and rhombencephalon
Which cranial nerves come off the pontomedullary junction?
6,7,8
What are the cavities within the brainstem?
cerebral aqueduct and 4th ventricle
Which of the cranial nerves emerging from the pontomedullary junction has the longest course?
facial
3 surface features on medulla
pyramids
decussation of pyramids
olives
Which cranial nerve emerges from the surface of the pons?
trigeminal
What peduncle emerges from the surface of the pons
middle cerebellar peduncle
What fibres makes up the middle cerebellar peduncle
centripetal
What part of the brain lies superiorly to the midbrain?
thalamus
What fibres make up the cerebral peduncles and where are they found?
motor fibres, for cortex from the brainstem
What part of brainstem is pineal gland and inferior and superior colliculi found?
midbrain
What is the diencephalon made up from?
thalamus and hypothalamus
What 2 parts of the brain do the diencephalon lie between?
cortex and midbrain
What are the surface projections of the hypothalamus called?
mammillary bodies
What is the midline structure connecting the 2 cerebellar hemispheres?
vermis
3 lobes of each cerebellar hemisphere
anterior, posterior, flocculonodular
Ventricle lying anterior to cerebellum
4th
What part of the cerebellum lies on top of the foramen magnum?
tonsils
What large fissure separates the cerebral hemispheres?
median longitudinal fissure
What type of fibres are in the corpus callosum?
commissural
What vertebral level does the spinal cord terminate in an adult and newborn?
L1/2
L3/4
What level does the dura and arachnoid mater terminate?
S2
What happens to the pia mater?
carries on as filum terminale
Vertebral level of lumbar puncture in adult
L3-5
What occupies the space between the end of spinal cord and termination of dura+arachnoid mater?
subarachnoid space filled with CSF
How many pairs of spinal nerves are there?
31
Is damage to the cauda equina LMN or UMN?
LMN
Lobes and functions - 1:primary motor cortex 2:primary visual cortex 3:primary sensory cortex and 4:primary auditory cortex
frontal
occipital
parietal
temporal
From which arteries do the vertebral arteries arise?
subclavian
What fissures do the cerebral arteries run in?
median longitudinal fissure
lateral sulcus
calcarine sulcus
