Ana313

Question 1

Two large bundles of fibres; cerebral peduncles are seen on the anterior aspect of the midbrain

Question 2

one on each side of the midline.

Question 3

& These fibres are separated by a deep fissure.

Question 4

& Near the pons

Answer 4

the fissure is narrow

Question 5

corresponding cerebral hemispheres.

Question 6

& Below the cerebrum

Answer 6

the peduncles form the posterior boundary of a space

Question 7

called the

Question 8

interpeduncular fossa.

Question 9

On the posterior surface are four rounded colliculi (corpora quadrigemina).

Question 10

& These are divided into superior and inferior pairs by a vertical and a transverse groove

Question 11

& The superior colliculi are centers for visual reflexes and the inferior colliculi are lower auditory

Question 12

centers.

Question 13

& Each colliculus is related laterally to a ridge called the brachium.

Question 14

The superior brachium/superior quadrigeminal brachium or brachium of superior colliculus

Question 15

connects the superior colliculus to the lateral geniculate body.

Question 16

V

Question 17

The inferior brachium/inferior quadrigeminal brachium or brachium of inferior colliculus connects

Question 18

the inferior colliculus to the medial geniculate body.

Question 19

X In the midline below the inferior colliculi is superior medullary velum

Answer 19

where the trochlear nerves

Question 20

emerge.

Question 21

What are the cerebral peduncles?

Answer 21

Two large bundles of fibres located on the anterior aspect of the midbrain.

Question 22

What separates the fibres of the cerebral peduncles?

Answer 22

A deep fissure.

Question 23

How does the fissure between the cerebral peduncles change in width?

Answer 23

It is narrow near the pons but broadens as the peduncles diverge.

Question 24

What space is formed below the cerebrum by the cerebral peduncles?

Answer 24

Interpeduncular fossa.

Question 25

What structures are found on the posterior surface of the midbrain?

Answer 25

Four rounded colliculi (corpora quadrigemina).

Question 26

How are the colliculi divided?

Answer 26

Into superior and inferior pairs by a vertical and a transverse groove.

Question 27

What is the function of the superior colliculi?

Answer 27

Centers for visual reflexes.

Question 28

What is the function of the inferior colliculi?

Answer 28

Lower auditory centers.

Question 29

What is related laterally to each colliculus?

Answer 29

A ridge called the brachium.

Question 30

What does the superior brachium connect?

Answer 30

The superior colliculus to the lateral geniculate body.

Question 31

What does the inferior brachium connect?

Answer 31

The inferior colliculus to the medial geniculate body.

Question 32

What is located in the midline below the inferior colliculi?

Answer 32

Superior medullary velum.

Question 33

Where do the trochlear nerves emerge?

Answer 33

From the superior medullary velum.

Question 34

Where is the pharynx situated?

Answer 34

Behind the nasal cavities, the mouth, and the larynx

Question 35

What are the three parts of the pharynx?

Answer 35

* Nasal part * Oral part * Laryngeal part

Question 36

What is located at the upper end of the pharynx?

Answer 36

Its upper, wider end lies under the skull

Question 37

What does the lower end of the pharynx become continuous with?

Answer 37

The esophagus

Question 38

At which cervical vertebra does the pharynx become continuous with the esophagus?

Answer 38

Opposite the sixth cervical vertebra