Medulla Flashcards
The medulla contains which ventricle?
4th
The pyramids are made of…
Corticospinal tracts that decussate in the inferior part
The olives are made of…
Inferior olivary nuclei that are associated with the cerebellum
The medulla is mainly involved in…
Movement, sensory processing and cognitive tasks
Damage to the medulla is associated with…
Decreased ability to perform highly specialised tasks
Inferior cerebellar peduncles
Two ridges carrying the olivocerebellar fibres which connect the cerebellum and the medulla
What are the prominences found either side of the midline in the fourth ventricle?
Medially - nucleus of the hypoglossal nerve
Laterally - nucleus of the vagus nerve
What are the four vertical ridges found posterior to the middle medulla?
Two medial - fasiculi grascilis
Two lateral - fasciculi cuneatus
Where are the gracile and cuneate nuclei usually seen on a Weigert?
Seen as pale clusters in a middle medulla section
Which cranial nerve nuclei are found in the medulla
X - vagus
XI - spinal accessory
XII - hypoglossal
Decussation of the pyramids
deviation in the anterior midline sulcus which corresponds to the decussation of 80% of pyramidal fibres to form the anterior and lateral corticospinal tracts
Where are the spinocerebellar tracts found?
in the lowest part of the medulla
