Anterior Triangle Part 2

Question 1

What are the boundaries of the Carotid Triangle?

Answer 1

Sternocleidomastoid (XI CN)
Posterior belly of the Digastric (VII)
Superior belly of the Omohyoid (AC)

Question 2

List the Arteries of the Carotid Triangle:

Answer 2

Common Carotid artery with Bifurcation at C3
Internal Carotid Artery
External Carotid artery (Branches:)
- Superior Thyroid Artery with superior laryngeal artery
- lingual artery
-facial artery
-ascending pharyngeal artery
-occipital artery

Question 3

List the Veins of the Carotid Triangle:

Answer 3

Internal Jugular vein
Common facial vein
lingual vein
superior thyroid vein
middle thyroid vein

Question 4

List the Nerves of the Carotid Triangle:

Answer 4

Vagus
Internal and External Laryngeal nerves (Branches of Vagus)
Hypoglossal Nerve (With N. to Thyrohyoid)
Ansa Cervicali
Sympathetic Trunk

Question 5

List the Visceral structures of the Carotid Triangle:

Answer 5

Larynx (small portion)

Thyroid (small portion)

Question 6

What are the boundaries of the Submandibular Triangle?

Answer 6

Anterior: Anterior belly of digastric muscle
Posterior: Posterior belly of digastric muscle
Superior: Inferior border of the body of the mandible

Question 7

What makes up the floor of the Submandible Triangle?

Answer 7

1. Mylohyoid: Originates in the mylohyoid line of the mandible. Inserts on midline raphe from chin to hyoid bone and the body of the hyoid bone. (V3)
2. Hyloglossus: Originates in the greater horn of the hyoid bone. Inserts on the lateral surface of the tongue (CN XII)
3. Middle pharyngeal constrictor: Originates in the greater horn of hyoid and stylohyoid ligament and inserts into muscle of other side at midline raphe.

Question 8

What makes up the floor of the Carotid Triangle? ** check

Answer 8

The hyloglossus, middle constrictor, inferior constrictor, and thyrohyoid

Question 9

List the contents of the Submandible triangle:

Answer 9

Stylohyoid muscle
submandibular gland
submandibular lymph nodes
facial arter (Major branch-- Submental artery)
Facial vein
Hypoglossal nerve
mylohyoid N
Lingual Artery
Lingual Nerve

Question 10

The internal laryngeal Nerve all parallel:

Answer 10

The superior laryngeal artery

Question 11

The external laryngeal Nerve will parallel:

Answer 11

Superior thyroid artery

Question 12

The Vagus Nerve will parallel:

Answer 12

The common carotid

Question 13

What is the Carotid Sinus:

Answer 13

Bulge right after the bifurcation. Has Baroreceptors that will monitor blood pressure

Question 14

The superior cervical sympathetic ganglion lies on:

Answer 14

The muscles of the Carotid sheath

Question 15

Name the three branches of the Trigeminal Nerve:

Answer 15

V1: Ophthalmic N.
V2: Maxillary N
V3: Mandibular N.