Parotid Gland Boundaries

Front 1

Superior

Back 1

Zygomatic arch
Superficial temporary artery
Auriculo temporal nerve

Front 2

Inferior

Back 2

1 Angle of the mandible
2 External carotid artery
3 Retromandibular vein
-joins with the posterior auricular vein to form external jugular vein
4 Cervical branches of the facial nerve
5 Platysma muscle
6 Great auricular nerve

Front 3

Anterior

Back 3

1 Parotid duct and transverse facial artery
2. zygomatic, buccal and marginal mandibular branches of the facial

Front 4

Posterior

Back 4

1. Styloid and mastoid process
2. external acoustic meatus
3. SCM
4. occipital vein and posterior auricular artery

Front 5

Medial

Back 5

1. Masseter muscle
2. Internal carotid artery

Front 6

Lateral

Back 6

1. Investing layer of fascia
2. lymph nodes

Front 7

Relationship within the gland

Back 7

Parotid plexus

External carotid artery
-passes through the parotid and terminates into superficial temporary artery and maxillary artery

Retromandibular vein

Front 8

Blood Supply of the Parotid Gland

Back 8

External carotid artery

Retromandibular vein

Front 9

Nerve

Back 9

Sympathetic = superior cervical ganglion

Parasympathetic = from glossophopharyngeal - otic ganglion

Front 10

Blood supply of Parotid gland

Back 10

External carotid artery

Retromandibular vein

Front 11

Fascia

Back 11

Lateral surface= investing layer

Medial surface = fascia of masseter muscle

Front 12

Function

Back 12

Salivary gland with both sympathetic and parasympathetic innervation

Front 13

Parotid Duct (Course)

Back 13

-Exists anteriorly, crosses cheek superficial to masseter
run along transverse facial arter
-Pierces buccinator muscles, opens into the mouth