Anatomy neck

Question 1

Cervical fascia encasing the SCM and trapezius muscles?

Answer 1

Superficial cervical fascia

Question 2

Thyroid gland is invested in which fascia?

Answer 2

Pretracheal fascia

Question 3

Borders of triangle of auscultation (3)

Answer 3

Lat. Dorsi, trapezius, medial border of scapula

Question 4

Lumbar triangle of Petit borders? (3)

Answer 4

iliac crest, lat dorsi, ext oblique

Question 5

Lumbar hernia is most likely to occur at which site

Answer 5

Lumbar triangle of Petit

Question 6

Conduit of spread of infection from oral region to mediastinum

Answer 6

Retropharyngeal space

Question 7

Cranial nerve that descends through the carotid sheath

Answer 7

Vagus

Question 8

Carotid sheath contents

Answer 8

Common and internal carotid arteries, Vagus nerve, IJV

Question 9

Triangles of the neck (6)

Answer 9

Submental, Submandibular, Muscular, Carotid, Posterior, Subclavian

Question 10

Structures in muscular triangle

Answer 10

Thyroid, Parathyroids, Larynx

Question 11

Nerve that crosses Occipital triangle

Answer 11

Spinal accessory nerve

Question 12

Structures in Subclavian triangle

Answer 12

External jugular vein, Subclavian artery

Question 13

Which group of nodes act as sentinel nodes, for cancers in the thorax or abdomen?

Answer 13

Supraclavicular nodes

Question 14

Approximate weight of thyroid

Answer 14

20g

Question 15

Blood supply of thyroid

Answer 15

Superior thyroid artery, Inferior thyroid artery

Question 16

Origin of superior thyroid artery

Answer 16

External carotid

Question 17

Inferior thyroid artery origin?

Answer 17

Thyrocervical trunk

Question 18

Venous drainage of thyroid?

Answer 18

Superior thyroid v., Middle throid v., Inferior thyroid v.

Question 19

Superior thyroid vein drains into?

Answer 19

IJV

Question 20

Inferior thyroid vein drains into?

Answer 20

Brachiocephalic trunk

Question 21

Middle thyroid vein drains into?

Answer 21

IJV

Question 22

10% of the population have this artery supplying the isthmus of thyroid

Answer 22

Thyroid ima artery

Question 23

Structures in carotid sheath (lateral to medial)

Answer 23

IJV, vagus nerve, internal carotid artery

Question 24

First endocrine gland to develop

Answer 24

Thyroid

Question 25

Thyroid develops in the fetus on what day of gestation

Answer 25

24 days after fertilization

Question 26

Embryonal source of thyroid gland

Answer 26

thyroid diverticulum from floor of primordial pharynx

Question 27

Laryngeal prominence in the neck, what cartilage?

Answer 27

Thyroid cartilage

Question 28

Unpaired cervical cartilages

Answer 28

Thyroid, Epiglottis, Cricoid

Question 29

Paired cartilages

Answer 29

Arytenoid, Corniculate, Cuneiform

Question 30

Cricoid cartilage is at which vertebral level?

Answer 30

C6

Question 31

Failure of midline fusion of tracheoesophageal septum results in

Answer 31

Tracheoesophageal fistula

Question 32

Most common type of tracheoesophageal fistula

Answer 32

Esophageal atresia + Tracheoesophageal fistula at distal end (85-90%)

Question 33

Nerve tha maybe injured during ligation of the superior thyroid artery

Answer 33

External laryngeal nerve (from sup laryngeal nerve)

Question 34

Sensory innervation of the pharynx above the vocal cord

Answer 34

Internal laryngeal nerve (from sup laryngeal nerve)

Question 35

Cricothyroid muscle is innervated by

Answer 35

External laryngeal nerve (branch of sup laryngeal nerve)

Question 36

Chief tensor of vocal cords

Answer 36

Cricothyroid

Question 37

muscle abductor of vocal cords

Answer 37

Posterior cricoarytenoid

Question 38

muscle adductor of vocal cords

Answer 38

Lateral cricoarytenoid

Question 39

Left recurrent laryngeal nerve hooks around?

Answer 39

Aortic arch

Question 40

Innervation of all vocal cord muscles except cricothyroid

Answer 40

Recurrent laryngeal nerve

Question 41

Right recurrent laryngeal nerve hooks around?

Answer 41

Right subclavian artery

Question 42

Relaxes the vocal cords

Answer 42

Thyroarytenoid

Question 43

Actions of muscles innervated by the recurrent laryngeal nerve

Answer 43

adduction, abduction and relaxation of the vocal cords

Question 44

Action of muscle innervated by superior laryngeal nerve

Answer 44

tensor of vocal cords

Question 45

Sensory ennervation of below vocal cord area

Answer 45

Recurrent laryngeal nerve

Question 46

Ansa cervicalis is formed by

Answer 46

Hypoglossal, C1, C2, C3

Question 47

Ansa cervicalis innervates which muscles?

Answer 47

Omohyoid, sternothyroid, sternohyoid

Question 48

Cervical plexus formed by

Answer 48

C1-C4

Question 49

Phrenic nerve is formed by

Answer 49

C3, C4, C5

Question 50

Zones of penetrating neck trauma - Zone 1 borders

Answer 50

Clavicles to cricoid cartilage

Question 51

Zones of penetrating neck trauma - Zone 2 borders

Answer 51

Cricoid to angle of mandible

Question 52

Zones of penetrating neck trauma - Zone 3 borders

Answer 52

Superior to angle of mandible

Question 53

Zones of penetrating neck trauma - Zone 1 contents

Answer 53

Lung apices, thyroid, trachea, esophagus, carotid art, jugular veins

Question 54

Zones of penetrating neck trauma - Zone 2 contents

Answer 54

thyroid, trachea, esophagus, carotid art, jugular veins

Question 55

Zones of penetrating neck trauma - Zone 3 contents

Answer 55

Salivary glands, oropharynx, nasopharynx

Question 56

Zones of penetrating neck trauma with high risk for morbidity and mortality

Answer 56

Zone I and III