Pons

Question 1

Length of pons

Answer 1

2.5 cm

long

Question 2

Pons connects … to …

Answer 2

Medulla oblongata

Mid breain

Question 3

largest part of the brainstem

Answer 3

The pons

Question 4

Pons is a group of nerves that function as

Answer 4

connecting the right and left cerebellar hemispheres

Question 5

The pons develops from

Answer 5

embryonic metencephalon

Question 6

The pons is located in

Answer 6

the anterior part of the posterior cranial fossa.

Question 7

Its anatomical relations post, inf, superior

Answer 7

Posteriorly – the cerebellum, separated by the fourth ventricle.
Inferiorly – the medulla oblongata.
Superiorly – the midbrain lies immediately above the pons.

Question 8

The anterior or ventral surface of the pons is marked by a bulging formed by

Answer 8

the transverse pontocerebellar fibres.

Question 9

basilar artery is located.

Answer 9

The basilar groove

Question 10

The pontomedullary junction is an important anatomical landmark defined by

Answer 10

the angle between the lower border of the pons and the superior border of the medulla.

Question 11

the angle between the lower border of the pons and the superior border of the medulla.

Answer 11

Cranial nerve V: trigeminal
Cranial nerve VI: abducens
Cranial nerve VII: facial
Cranial nerve VIII : vestibulocochlear

Question 12

VIII: vestibulocochlear origins

Answer 12

laterally to the facial nerve.

Question 13

VII: facial originates from

Answer 13

the cerebellopontine angle, the more lateral aspect of the pontomedullary junction.

Question 14

nerve VI: abducens – originates from

Answer 14

the pontomedullary junction, close to the midline

Question 15

nerve V: trigeminal – originates from

Answer 15

the lateral aspect of mid pons

Question 16

The pons is intimately related to the cerebellum and is connected to it by

Answer 16

middle cerebellar peduncles

Question 17

….. marks the midline of the floor of the fourth ventricle

Answer 17

The medial eminence

Question 18

The facial colliculus

Answer 18

bulging formed by the fibres of the facial nerve looping around the abducens nucleus.

Question 19

parts anatomy

Answer 19

Pontine cistern

Clivus

Question 20

Anterior surface parts anatomy

Answer 20

Pyramidal eminince
Transverse pontine fibers
Mid cerebral peduncle
Basilar groove
Motor root of trigeminal n
Sensory root of trigeminal n

Question 21

External appearances of pons

Answer 21

Trigeminal n
Medullopontine sulcus
Facial n
Abduncens n
Vestibulocochlear n
Intermediate n

Question 22

Post surface of pons forms

Answer 22

Forms the upper half rhomboid fossa

and is triangular in shape

Question 23

The thin white membrane on the post surface of pons

Answer 23

Superior (anterior) medullary vellum apex

Question 24

Facial colliculus

Answer 24

Root of facial nerve winding around the nucleus of abducens nerves

Question 25

Post surface of pons

Answer 25

Post median sulcus
Sup cerebral peduncle 
Sup medullary velum
Sulcus limitans
Median eminence
Facial colliculus
Vestibular area
Lateral recess
Foramen lateral 
VESTIBULAR AREA
Auditory tubercle