Anatomy

Question 1

Which nerve enervates the intrinsic muscles of the tongue

Answer 1

Hypoglossal nerve (CN XII)

Question 2

List the 4 extrinsic muscles of the tongue

Answer 2

Genioglossus
Hyoglossus
Styloglossus
Palatoglossus

Question 3

Which nerve innervates Palatoglossus

Answer 3

Vagus nerve

Question 4

Which nerve innervates Styloglossus

Answer 4

Hypoglossal nerve (CN XII)

Question 5

Which nerve innervates Genioglossus

Answer 5

Hypoglossal nerve (CN XII)

Question 6

Which nerve innervates Hyoglossus

Answer 6

Hypoglossal nerve (CN XII)

Question 7

Which nerve supplies taste sensation to anterior 2/3 of tongue

Answer 7

Facial nerve (CNVII)

Chorda Tympani branch

Question 8

Which nerve innervates the posterior 1/3 of tongue with taste and sensation

Answer 8

Glossopharyngeal nerve (CN IX)

Question 9

Which nerve innervates the anterior 2/3 of tongue with sensation

Answer 9

Trigeminal nerve (CN V)

lingual nerve branch of mandibular nerve (CN V3)l

Question 10

List the 4 paranasal sinuses

Answer 10

Frontal
Spenoid
Ethmoidal
Maxillary

Question 11

Which structure attaches the diaphragm to the fibrous pericardium

Answer 11

Central tendon

Question 12

Which structures pass through the caval Hiatus at T8

Answer 12

IVC
Terminal branches of R phrenic nerve

Question 13

Which structures pass through the Oesophageal Hiatus at T10

Answer 13

Oesophagus
Right and Left vagus nerves
Oesophageal branches of left gastric artery and vein

Question 14

Which structures pass through the Aortic Hiatus at T12

Answer 14

Aorta
Thoracic duct
Azygous vein

Question 15

Which nerve innervates sensation from the central diaphragm

Answer 15

Phrenic nerves

Question 16

Which nerve innervates sensation from the peripheral diaphragm

Answer 16

Intercostal nerves

Question 17

In which region of the nose do 90% of epistaxis occur

Answer 17

Little’s area

Question 18

Which artery supplies the majority of nasal mucosa

Answer 18

Sphenopalatine artery

Question 19

Which artery supplies the nasal septum

Answer 19

Greater palatine artery

Question 20

Which nerve supplies smell sensation in nose

Answer 20

Olfactory nerve (CN I)

Question 21

Which nerve supplies sensation to the nose

Answer 21

Ophthalmic and maxillary branches of Trigeminal nerve (CN V)

Question 22

Through which structure do the paranasal sinuses drain into the nasal cavity

Answer 22

The Ostia

Question 23

Which turbinate is the largest in the nose

Answer 23

The inferior turbinate

Question 24

Which turbinate in nose supports olfactory epithelium

Answer 24

Superior turbinate

Question 25

How much can the nose humidify air

Answer 25

95%

Question 26

Which nerve needs to be blocked in axillary nerve block to avoid tourniquet pain

Answer 26

Musculocutaneous nerve

Question 27

List the 7 nerves of the lumbar plexus L1-L5

Answer 27

Subcostal Iliohypogastric (L1) Ilioinguinal (L1) Genitofemoral (L1, L2) Lateral Cutaneous nerve of the thigh (L2, L3) Obturator (L2, L3, L4) Femoral (L2, L3, L4)

Question 28

In which nerve plexus does the Sciatic nerve originate from

Answer 28

Lumbrosacral plexus L4 - S3

Question 29

What are the boundaries of the epidural space

Answer 29

Superior: Fusion of 3 spinal and perinatial layers of dura mater at foramen magnum Inferior: Sacrococcygeal membrane Anterior: Posterior longitudinal ligament Lateral: Pedicles and intervertebral foramina Posterior: Ligamentum flavum

Question 30

What is the narrowest part of the paediatric airway

Answer 30

Cricoid cartilage

Question 31

Which nerve exits the skull via Optic canal

Answer 31

CNII optic nerve

Question 32

Which nerves exit the skull via the Superior Orbital Fissure

Answer 32

CNIII CNIV CN V1 CNVI

Question 33

Which nerve exits the skull via the Foramen Rotundum

Answer 33

CN V2

Question 34

Which nerve exits the skull via the Foramen Ovale

Answer 34

CN V3

Question 35

Which nerves exit the skull via the Foramen Spinosum

Answer 35

CN V3 (meningeal branch)

Question 36

Which nerves exit the skull via the Internal Acoustic Meatus

Answer 36

CN VII CN VIII

Question 37

Which nerves exit the skull via the Jugular Foramen

Answer 37

CN IX CN X CN XI

Question 38

Which nerve exits the skull via the Hypoglossal canal

Answer 38

CN XII