Exam 3

Question 1

Name the branch of the maxillary artery that branches of off the “second part” (as demarcated by the lateral pterygoid muscle). What group of muscles does this supply?

Answer 1

Buccal Artery

supplies the muscles of mastication

Question 2

Name the branch of the maxillary artery that branches of off the “Third part” (as demarcated by the lateral pterygoid muscle). what does this supply?

Answer 2

Posterior superior alveolar

Supplies upper molars and premolars

Question 3

Name the branch of the maxillary artery that branches of off the “First part” (as demarcated by the lateral pterygoid muscle). State the path of this artery and the artery it becomes.

Answer 3

Inferior Alveolar

Enters the mandibular foramen where it supplies the lower teeth and gums

THEN passes through the mental foramen and becomes the mental artery

Question 4

State the cranial foramen that the Middle meningeal artery and the Accessory meningeal artery respectively pass through.

Answer 4

Middle Meningeal Artery: passed through the foramen spinosum (along with the Meningeal branch of the trigeminal nerve)

Accessory Meningeal Artery: passes through the foramen ovale (along with the mandibular branch of the trigeminal nerve)

Question 5

Compare the 2 branches of the maxillary artery that supply either side of the eardrum surfaces.

Answer 5

The Deep Auricular artery (lies within the parotid gland) supplies the outer surface of the eardrum

The Anterior Tympanic artery supplies the inner surface of the eardrum

Question 6

What ganglion is described by the following?

Fused inferior cervical ganglion and T1 ganglion

Answer 6

Stellate ganglion

Question 7

which of the 4 infrahyoid muscles is not innervated by the ansa cervicalis? what nerve innervates this muscle?

Answer 7

The Thyrohyoid muscle, which is innervated by the Hypoglossal nerve

Question 8

State the 3 structures that pass through the gap between the skull and the superior constrictor muscle

Answer 8

Levator Palatini muscle

Auditory tube

Ascending Palatine Artery

Question 9

State the 3 structures that pass through the gap between the Superior and Middle pharyngeal constrictor muscles

Answer 9

Stylopharyngeus muscle

Glossopharyngeal nerve

Stylohyoid muscle

Question 10

State the 3 structures that pass through the gap between the Middle and Inferior pharyngeal constrictor muscles

Answer 10

Internal Laryngeal nerve

Superior Laryngeal Artery

Superior Laryngeal Vein

Question 11

State the 2 structures that pass just inferior to the Inferior Pharyngeal Constrictor muscle

Answer 11

Recurrent laryngeal nerve

Inferior laryngeal artery

Question 12

What type of lesion (and on what structure) is associated with the following? occlusion of what artery spares the reticular formation and leaves the pt is this condition?

Consciousness but quadriplegic

Answer 12

Bilateral lesions of the ventral pons

occlusion of the basilar artery

Question 13

If a pt has bilateral lesions of the ventral pons and is quadriplegic, what neural structure can allow them to communicate via eye movements IF it is still intact?

Answer 13

The Corticobulbar fibers to the oculomotor nuclei