NB2 Exam

Question 1

Anterior belly digastric is innervated by the :

Answer 1

Mylohyoid nerve

Question 2

Posterior belly Digastric is innervated by the :

Answer 2

Facial Nerve (CNVII)

Question 3

Superior belly omohyoid is innervated by the :

Answer 3

Ansa cervicalis

Question 4

The Sternocleidomastoid is innervated by the

Answer 4

Spinal accessory nerve (CNXI)

Question 5

The Trapezius Muscle

Answer 5

Spinal accessory nerve (CNXI)

Question 6

The Inferior belly omohyoid muscle is innervated by the :

Answer 6

Ansa cervicalis

Question 7

The Pretracheal & Buccopharyngeal fascia is apart of which layer of Cervical fascia?

Answer 7

The Middle(Pretracheal) layer

Question 8

Describe the Superficial Layer of the Cervical Fascia?

Answer 8

Loose, fatty subcutaneous layer which contains the platysma muscle.

Question 9

Which nerve innervates the Platysma muscle?

Answer 9

CNVII-Facila Nerve

Question 10

Where is the investing facia of the deep fascia located in the neck?

Answer 10

The Investing fascia surrounds the neck and is deep to the superficial fascia and embedded into the platysma muscle.

Question 11

What are the 3 structures that describe the borders of the posterior triangle?

Answer 11

1. Trapezius muscle, sternomastoid muscle and the clavicle

Question 12

What are the 3 structures that describe the borders of the anterior triangle?

Answer 12

Midline, the sternomastoid muscle and mandible

Question 13

The Lacrimal duct opens into which part of the lateral of the nasal cavity?

Answer 13

The Inferior Meatus

Question 14

What is the purpose of the nasal concha on the lateral wall of the nasal cavity?

Answer 14

Increases the surface area to warm and humidify the inspired air.

Question 15

At which cervical level does the Eustachian tube align with?

Answer 15

C1 and C2 evident by the presence of the Dens of C2 and C1 bones posterior to the Salphingopharyngeal fold.

Question 16

Roof of the Nasal cavity consists of :

Answer 16

Nasal bone, Frontal bone & ethmoid bone

Question 17

What bones make up the floor of the nasal cavity?

Answer 17

Maxilla and palatine

Question 18

What are the bones and tissue that make up the Lateral wall of the nasal cavity?

Answer 18

Maxilla, Nasal lacrimal, ethmoid, palatine bones and the inferior concha

Question 19

The Medial Wall of the Nasal cavity is made up of:

Answer 19

The ethmoid bone, vomer, the nasal, sphenoid, palatine, maxilla bones and the nasal septum.

Question 20

Where do receptor neurons in the olfactory mucosa send their axons?

Answer 20

The axons in the olfactory nerve are sent to the olfactory bulb.

Question 21

What are the sensory innervations of the lateral wall?

Answer 21

CN V1- Ophthalmic branch and CN V2- Maxillary branch.

Question 22

What are the 7 components that make up the medial wall of the Nasal Septum?

Answer 22

Septal cartilage, vomer, ethmoid, sphenoid, maxillary, frontal, nasal

Question 23

What arteries provide vascular supply to the nasal cavity?

Answer 23

ICA and ECA

Question 24

Most common site for nosebleeds

Answer 24

Kiesselbach’s area

Question 25

Which 4 arteries anastomose in Kiesselbach's area?

Answer 25

Ant. ethmoidal artery(septal branch), Superior labial artery(septal branch), greater palatine artery(terminal branch) and the sphenopalatine artery(posterior septal branch)

Question 26

Lateral Boundary of the IT Fossa:

Answer 26

The Ramus of the mandible

Question 27

Medial Boundary of the IT Fossa:

Answer 27

The Lateral pterygoid plate

Question 28

Anterior Boundary of the IT Fossa:

Answer 28

The posterior aspect of the maxilla

Question 29

Posterior Boundary of the IT Fossa:

Answer 29

The tympanic plate and the mastoid and styloid processes of the temporal bone

Question 30

Superior Boundary of the IT Fossa:

Answer 30

The inferior (infratemporal) surface of the greater wing of the sphenoid

Question 31

Inferior Boundary of the IT Fossa:

Answer 31

Where the medial pterygoid muscle(a muscle of mastication) attaches to the mandible near its angle

Question 32

What 6 components are within the IT Fossa?

Answer 32

1. Inferior part of the temporalis muscle 2. Lateral & Medial pterygoid muscles 3. Maxillary Artery 4. Pterygoid venous plexus 5. Mandibular, inferior alveolar, lingual, buccal, and chorda tympani nerves 6. otic ganglion

Question 33

What are the 2 extrinsic ligmanets along with the lateral ligament connect the mandible to the cranium?

Answer 33

The Stylomandibular ligament and the Sphenomandibular ligament

Question 34

What disorder does this describe? The condyle of the mandible being abnormally displaced, with a loss of the normal articulation with the glenoid fossa

Answer 34

Bilateral anterior dislocation of the TMJ

Question 35

The pterygoid plexus' communication with what structures makes it a clinically significant plexus?

Answer 35

The pterygoid plexus communicates with the cavernous sinus, the inferior ophthalmic vein and the facial vein.

Question 36

Veins that connect the pterygoid plexus with the cavernous sinus:

Answer 36

Emissary veins

Question 37

A small _________ _______ opens onto the posterior wall and leads to the nasopharynx

Answer 37

Palatovaginal canal