Anterior Traingle Of The Neck

Question 1

What are the boundaries of the anterior triangle

Answer 1

Anterior border- midline of neck
Posterior border-anterior border of SCM
Base- mandible

Question 2

What are Divisions of anterior triangle

Answer 2

Sub-mental- beginning of anterior jugular vein
Sub-mandibular- submandibular salivary gland, facial artery and vein, carotid sheath and hypoglossal nerve
Muscular- Sternohyoid and sternothyroid from the floor beneath thyroid gland, larynx, trachea and oesophagus

Question 3

Platysma- where does it lie

Answer 3

Form the fascia about pectoralis major and clavicle to the lateral neck and onto mandible
Facial nerve

Question 4

Veins in anterior triangle?

Answer 4

External jugular- anterior to SCM
Internal jugular- posterior to SCM
Anterior jugular- midline

Question 5

Cervical plexus

Answer 5

Anterior rami C1-4
Joined into loops that lie anterior to Leavator scapulae and scaleus medius
Covered by prevertebral layer of deep cervical fascia

Question 6

Muscles between hyoid and mandible

Answer 6

Suprahyoid

Question 7

Muscles between hyoid and sternum

Answer 7

Infrahyoid

Question 8

Suprahyoid muscles

Go Move Stuff Down

Answer 8

Geniohyoid-hypoglossal
Mylohyoid- mandibular division of trigeminal
Stylohyoid- facial
Digastric anterior- mandibular division of trigeminal
Digastric posterior- facial

Question 9

Infrahyoid Muscles and supplies

TOSS

Answer 9

Thyrohyoid- hypoglossal
Omohyoid- ansa cevicalis
Stylohyoid-ansa cevicalis
Sternohyoid- ansa cevicalis

Question 10

Common carotid artery

Answer 10

Splits at C4 into external and internal carotid arteries 
Left from arch if aorta
Right form brachiocephalic 
Internal carotid to brain
Eternal carotid to head , face and neck

Question 11

Carotid sheath

Answer 11

Internal jugular vein

Vagus nerve

Question 12

External carotid anterior branches

Answer 12

Super thyroid
Lingual
Facial

Question 13

Vagus nerve

Answer 13

Descends in carotid sheath
Recurrent laryngeal beaches to muscles of larynx
Internal and external branches

Question 14

Thyroid gland- structure and position

Answer 14

2-lobes, isthmus and capsule

Form lamina of thyroid cartilage done to 6th tracheal ring

Question 15

Thyroid gland- arterial supply

Answer 15

Superior thyroid- first anterior branch of external carotid

Inferior thyroid- branch of the thyrocevical trunk of subclavian

Question 16

Thyroid gland- venous drainage

Answer 16

Left and right inferior thyroid veins drain to left brachiocephalic vein
Superior, middle and inferior thyroid vein

Question 17

Submandibular salivary gland

Answer 17

Facial nerve