Carotid Triangle

Question 1

Boundries

Answer 1

1. Behind
2. Above and in front
3. Below and in front

Question 2

Behind

Answer 2

Upper part sternomastoid

Question 3

Above and in front

Answer 3

Posterior belly digastric

Question 4

Below and in front

Answer 4

Superior belly omohyoid

Question 5

Roof

Answer 5

1. Skin
2. Superficial fascia (containing Platysma)
3. Deep fascia

Question 6

Floor

Answer 6

1. Side pharynx (inferior and middle constrictors)
2. Thryohyoid
3. Hyoglossus

Question 7

Blood vessels

Answer 7

3 carotid arteries and IJV

Question 8

Arteries

Answer 8

1. Common carotid artery (CCA)
2. ECA
3. ICA

Question 9

Veins

Answer 9

1. Superior thyroid
2. Lingual
3. Common facial veins
4. IJV

Question 10

CCA

Answer 10

Divides at upper border thyroid cartilage into: ICA and ECA

Question 11

ECA

Answer 11

Anteromedial to ICA outside carotid sheath gives 5 branches in triangle:
1. Superior thyroid artery
2. Lingual artery
3. Facial artery
4. Occcipital artery
5. Ascending pharyngeal

Question 12

Superior thyroid artery

Answer 12

Runs downwards and forwards

Question 13

Lingual artery

Answer 13

Runs forwards with loop opposite tip of hyoid greater horn

Question 14

Facial artery

Answer 14

Runs upwards and forwards above lingual artery

Question 15

Occipital artery

Answer 15

Runs upwards and backwards along posterior belly digastric lower border

Question 16

Ascending pharyngeal

Answer 16

Runs upwards on ICA medial side

Question 17

ICA

Answer 17

Posterolateral to ECA inside carotid sheath gives no branches in neck

Question 18

Superior thyroid, lingual, and common facial veins

Answer 18

Ending in IJV

Question 19

IJV

Answer 19

Lies inside carotid sheath posterolateral to ICA

Question 20

Carotid sheath

Answer 20

Tube of deep fascia surrounding CCA, ICA, IJV, and vagus nerve

Question 21

Lymph nodes

Answer 21

Deep cervical lymph nodes

Question 22

Nerves

Answer 22

1. Hypoglossal nerve
2. Spinal root accessory
3. Vagus nerve
4. Sympathetic chain

Question 23

Sympathetic chain

Answer 23

Deep to CCA and ICA

Question 24

Spinal root accessory and vagus nerve

Answer 24

Mostly undercover of sternomastoid

Question 25

Hypoglossal nerve

Answer 25

1. Crosses superficial to ICA, ECA, and lingual artery loop 2. Gives descends hypoglossi which passes in front of ICA and CCA forming ansa cervicalis