Deep Neck

Question 1

Name the 4 suprahyoid muscles?

Answer 1

Mylohyoid, geniohyoid, stylohyoid and digastric

Question 2

Mylohyoid - action and innervation?

Answer 2

Forms the floor of the mouth

Infeiror alveolar nerve

Question 3

Geniohyoid - innervation?

Answer 3

C1 via hypoglossal nerve

Question 4

Stylohyoid - innervation? action?

Answer 4

Cervical branch of facial

Elevate tongue and drow hyoid backwards

Question 5

Digastric - innervation (anterior and posterior)? split by?

Answer 5

Anterior: mylohyoid nerve branch of inferior alveolar nerve
Posterior: Facial nerve
Split by intermediate tendon

Question 6

Name the 3 scalene muscles?

Answer 6

Anterior, Medius and Posterior

Question 7

Scalenus anterior - innervation?

Answer 7

Anterior rami of C4, C5 and C6

Question 8

Scalenus medius - innervation?

Answer 8

Branches from the anterior rami of the cervical nerves

Question 9

Scalenus posterior - innevration?

Answer 9

Branches from the anterior rami of the lower cervical nerves

Question 10

Branches of the external carotid artery - anterior (3)? posterior (2)? medial (1)? and terminal (2)?

Answer 10

Anterior:
- superior thyroid, lingual and facial
Posterior:
- occipital and posterior auricular 
Medial:
- ascending pharyngeal
Terminal:
- superficial temporal
- maxillary

Question 11

2 veins which form the external jugular vein - drain to?

Answer 11

Retromandibular vein with the posterior auricular vein

Subclavian vein

Question 12

Internal jugular vein - drains blood from? joins to form?

Answer 12

Brain, superficial face and neck

Joins subclavian to form brachiocephalic vein

Question 13

Name the 2 cranial nerves associated with the cervical plexus?

Answer 13

Hypoglossal and accessory

Question 14

Name the 4 areas of regional lymph nodes?

Answer 14

Submental
Submandibular
Parotid
Posterior auricular

Question 15

Name the terminal nodes - superior and inferior?

Answer 15

Superior:
- jugulodigastric node
Inferior:
- jugulo-omohyoid node

Question 16

Cervical sympathetic trunk - ganglia? preganglionic fibres?

Answer 16

Superior, middle and inferior

Superior thoracic spinal nerves

Question 17

Horner’s syndrome - cause? symptoms?

Answer 17

Severance of sympathtic trunk
Symptoms:
- pupillary constriction (paralysis of dilator pupillae muscle)
- ptosis (lowering upper eyelid due to paralysis of levator palpebrae superioris
- sinking eye (paralysis of orbitalis)
- vasodilation and absent sweating (absent supply to sweat glands)