Block I presentacion 2 Sosa

Question 1

What are the 12 cranial nerves?

Answer 1

I -Olfactory
II -Optic
III -Oculomotor
IV -Trochlear
V -Trigeminal
VI -Abducens
VII -Facial
VIII -Vestibulocochlear
IX -Glossopharyngeal
X -Vagus
XI -Accessory
XII -Hypoglossal

Question 2

Identify structures

Answer 2

Question 3

What makes the roof and floor of the 4th ventricle?

Answer 3

Roof- cerebellum
floor: posterior wall of brainstem

Question 4

Identify the structures in the medulla

Answer 4

*union pontumedular
*Surco post-olivar
*surco pre-olovar

Question 5

Identify the structures in the pons

Answer 5

Question 6

Which structure in the pons has an artery?

Answer 6

Basilar sulcus

Question 7

Which nerve in the pons is bigger and has a sensorial ganglion on which 3 rami emerge?

Answer 7

Trigeminal nerve (CN V)

Question 8

Which nerve is responsible for auditory and balance?

Answer 8

Vestibulocochlear nerve (CN VIII)

Question 9

Identify the structures in the midbrain

Answer 9

Question 10

Which nerve in the brainstem is the thinnest of the cranial nerves and wha does it innervate?

Answer 10

Throcheal nerve (CN IV); supplies a muscle on the nerve of the eye and exits through the posterior part

Question 11

What structure in the midbrain is found in the mammillary bodies?

Answer 11

Interpeduncular fossa

Question 12

What does the Glossopharyngeal nerve (IX) supplies?

Answer 12

Muscles of the tongue and pharynx

Question 13

Identify

Answer 13

Question 14

Identify the structures of the medulla in a lateral view

Answer 14

Question 15

Identify the structures of the pons in a lateral view

Answer 15

Question 16

Identify the structures of the midbrain in a lateral view

Answer 16

*additional: gracilis, cuneatus, tuber cinerium

Question 17

identify structures within the brainstem in a lateral view

Answer 17

Question 18

Identify structures of the medulla in a posterior view

Answer 18

Question 19

What is the pathetic nerve?

Answer 19

Throcheal nerve (VN IV)

Question 20

Identify structures of the pons in a posterior view

Answer 20

Question 21

Identify structures of the midbrain in a posterior view

Answer 21

*additional: pineal gland

Question 22

What separates the pons and fourth ventricle?

Answer 22

striae medullares of 4th ventricle

Question 23

Identify area and structures

Answer 23

Midbrain:
(1) Tectum (superior & inferior colliculi)
[tegmentum]
(2) Red Nucleus
(3) Substantia Nigra
(4) Crus Cerebri (cerebral peduncles)
acueducto silius

Question 24

Identify area and structures

Answer 24

Pons:
(5) Reticular Formation
(6) Vestibular Nuclei
(7) Middle Cerebellar peduncles
(8) Superior Cerebellar peduncles

Question 25

Identify area and structures

Answer 25

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