Lecture 2

Question 1

Root of the neck AKA

Answer 1

Thoracocervical region

Question 2

Root of neck

Boundaries

Answer 2

Anterior: Manubrium sterni
Lateral: 1stribs
Posterior: Body of T1vertebra

Question 3

Root of neck

Important contents

Answer 3

CCA & IJV
Thoracic duct on LHS
Vagus, Phrenic nn & Sympathetic trunk
Subclavian a and its branches
Trachea
Oesophagus 
Recurrent laryngeal nerves

Question 4

1st part of subclavian artery

Answer 4

Sternoclavicular joint to medial side of anterior scalene
R from brachiocephalic a; L from aortic arch

• Vertebral a
• Thyrocervical trunk
  1. Inferior thyroid a
  2. Ascending cervical a
  3. Transverse cervical a (superficial brto trapezius & deep brto rhomboids)
  4. Suprascapular a
• Internal thoracic a

Question 5

2nd part of subclavian artery

Answer 5

Behind anterior scalene
Costocervical trunk
- Deep cervical a (to back of neck, anastomose with occipital a)
- Supreme intercostal a (supplies 1st two intercostal spaces from post)

Question 6

3rd part of subclavian artery

Answer 6

Lateral to anterior scalene
Ends on outer edge of 1st rib
Becomes axillary a

Question 7

Superficial lymphatic drainage

Answer 7

Sternocleidomastoid
Superficial temporal v
Parotid/Pre-auricular nodes
Postauricular v
Retro-auricular/Mastoid nodes
Occipital nodes
Retromandibular v
Superficial cervical nodes
Facial v
Buccal nodes
Submandibular nodes
Anterior jugular 
vSubmental nodes
External jugular v
Jugulo-omohyoid node

Question 8

Deep lymphatic drainage

Answer 8

Sternocleidomastoid
Internal jugular vein
Subclavian vein
Pharyngeal tonsil
Retropharyngeal nodes
Deep cervical nodes
Palatine tonsil
Jugulo-digastric node
Submental nodes
Submandibular nodes
Infrahyoid nodes
Jugulo-omohyoid node

Question 9

Maxillary artery

Answer 9

Starts at neck of mandible and continues into pterygopalatine fossa
Divided into 3 parts by lateral pterygoid
Each has 5 branches

Question 10

Maxillary artery

1st branch

Answer 10

Posterior to muscle

Deep auricular a
Anterior tympanic a
Middle meningeal a
Accessory branch of middle meningeal a
Inferior alveolar a

Question 11

Maxillary artery

2nd part

Answer 11

In relation to muscle

5 branches to muscles of mastication

Question 12

Maxillary artery

3rd part

Answer 12

In pterygopalatina fossa

Branches accompany branches of maxillary n
Posterior superior alveolar a
Infra-orbital a
Artery of pterygoid canal
Greater and lesser palatine aa
Sphenopalatine a

Question 13

Cutaneous nn of head and neck

V1

Answer 13

Supraorbital n
Supratrochlear n
Infratrochlear n
Lacrimal n

Question 14

Cutaneous nn of head and neck

V2

Answer 14

Zygomaticotemporal n
Zygomaticofacial n
Infraorbital n

Question 15

Cutaneous nn of head and neck

V3

Answer 15

Auriculotemporal n
Buccal n
Mental n

Question 16

Cutaenous nn of head and neck

Posterior

Answer 16

Great auricular n (C2,3)
Lesser occipital n (vC2,3)
Greater occipital n (dC2,3)
Transverse cervical n (C2)
Supraclavicular nn