Flashcards in Brain and Spinal Cord Deck (175)
Where are the superior and inferior colliculi?
On the back of the midbrain (tectum).
What are the crus cerebri?
Cerebral peduncles connecting the midbrain to the cerebral hemispheres.
What do the superior, middle and inferior cerebellar peduncles connect?
Superior peduncles = midbrain to cerebellum.
Middle peduncles = pons to cerebellum.
Inferior peduncles = medulla oblongata to cerebellum.
What is the epidural space?
A space outside the dura covering the spinal cord that is filled with fat and blood vessels.
What is the name of the lateral thickenings of the pia mater that anchor the spinal cord into the centre of the vertebral foramen?
What is the name of the tapering off of the spinal cord at L1/L2?
What is the name of all the nerve roots in the lumbar cistern?
What is the name of the thin string of pia mater that anchors the end of the spinal cord to S2?
What is the name of the ligament between the spinous processes of the vertebrae?
What is the name of the ligament along the posterior of the spinous processes of the vertebra?
What is the name of the ligaments along the front and back of the vertebral bodies?
Anterior longitudinal ligament, and posterior longitudinal ligament.
What is the name of the ligament that extends from the external occipital protuberance to the spinous process of C7 and is continuous with the supraspinous ligament>
Where is the central sulcus?
Between the frontal and parietal lobes.
What is either side of the central sulcus?
Pre-central gyrus = primary motor cortex.
Post-central gyrus = primary somatosensory cortex.
Where is the lateral fissure/sulcus?
Between the temporal lobe and the frontal and parietal lobes.
What is the name of the ligament that link the vertebrae together at the back of the central canal?
What is the insula?
An embedded lobe of cerebral cortex behind the lateral fissure, from the folding of the parietal and temporal lobes.
The cerebrum has sulci and gyri, what does the cerebellum have?
Folia and sulci.
What are the 3 lobes of the cerebellum?
Paleocerebellum (anterior), neocerebellum (posterior), and flocculonodular lobe.
Also, two lateral hemispheres and a vermis if you look at it the other way.
Name three structures found in the tegmentum of the brainstem.
Substantia nigra, peri-aqueductal grey matter, red nucleus.
What type of bones are vertebrae?
What does the sacral spinal cord look like?
Grey matter takes up much more space than white matter.
What does the cervical spinal cord look like?
White matter takes up much more space than grey matter.
What does the grey matter of the lumbar spinal cord look like?
A backwards butterfly.
What does the grey matter of the thoracic spinal cord look like?
What sort of bleeds are subdural haemorrhages, and subarachnoid haemorrhages?
Subdural = venous.
Subarachnoid = arterial.
What is conveyed in the anterior spinothalamic tract and what is conveyed in the lateral spinothalamic tract?
Anterior spinothalamic = crude touch.
Lateral spinothalamic = pain and proprioception.
What is conveyed by the anterior spinocerebellar tract, and what is conveyed by the lateral spinocerebellar tract?
Anterior spinocerebellar = ipsilateral movement control.
Lateral spinocerebellar = contralateral unconscious proprioception from muscle spindles.
What is conveyed by the dorsal-columns medial lemniscus tract?
Fine (discriminative) touch, vibration, pressure, conscious proprioception.