Block I presentacion 2 Sosa Flashcards
What are the 12 cranial nerves?
I -Olfactory
II -Optic
III -Oculomotor
IV -Trochlear
V -Trigeminal
VI -Abducens
VII -Facial
VIII -Vestibulocochlear
IX -Glossopharyngeal
X -Vagus
XI -Accessory
XII -Hypoglossal
Identify structures
What makes the roof and floor of the 4th ventricle?
Roof- cerebellum
floor: posterior wall of brainstem
Identify the structures in the medulla
*union pontumedular
*Surco post-olivar
*surco pre-olovar
Identify the structures in the pons
Which structure in the pons has an artery?
Basilar sulcus
Which nerve in the pons is bigger and has a sensorial ganglion on which 3 rami emerge?
Trigeminal nerve (CN V)
Which nerve is responsible for auditory and balance?
Vestibulocochlear nerve (CN VIII)
Identify the structures in the midbrain
Which nerve in the brainstem is the thinnest of the cranial nerves and wha does it innervate?
Throcheal nerve (CN IV); supplies a muscle on the nerve of the eye and exits through the posterior part
What structure in the midbrain is found in the mammillary bodies?
Interpeduncular fossa
What does the Glossopharyngeal nerve (IX) supplies?
Muscles of the tongue and pharynx
Identify
Identify the structures of the medulla in a lateral view
Identify the structures of the pons in a lateral view
Identify the structures of the midbrain in a lateral view
*additional: gracilis, cuneatus, tuber cinerium
identify structures within the brainstem in a lateral view
Identify structures of the medulla in a posterior view
What is the pathetic nerve?
Throcheal nerve (VN IV)
Identify structures of the pons in a posterior view
Identify structures of the midbrain in a posterior view
*additional: pineal gland
What separates the pons and fourth ventricle?
striae medullares of 4th ventricle
Identify area and structures
Midbrain:
(1) Tectum (superior & inferior colliculi)
[tegmentum]
(2) Red Nucleus
(3) Substantia Nigra
(4) Crus Cerebri (cerebral peduncles)
acueducto silius
Identify area and structures
Pons:
(5) Reticular Formation
(6) Vestibular Nuclei
(7) Middle Cerebellar peduncles
(8) Superior Cerebellar peduncles
Identify area and structures
Medulla:
(9) Reticular Formation
(10) Vestibular Nuclei
(11) Inferior Olive
(12) Pyramids
(13) Inferior Cerebellar peduncles
additional:
posterior sulcus
inferior olive
pre sulcus
anterior median fissure
