Exam 1 Relationships

Question 1

The hyoid bone has no Bony articulations and is stabilized by:

Answer 1

Via suprohyoid and infra hyoid muscles

Question 2

Carotid bodes can be found and contain:

Answer 2

Where the common carotid bifurcates (C3) and contain chemoreceptors; Chemoreceptors responds to changes in oxygen tension

Question 3

Where is the carotid sinus found?

Answer 3

Base of int. carotid artery. Contains baroreceptors which sense pressure changes (BP response)

Question 4

External carotid is:

Answer 4

More anterior than int. carotid and is outside SCM (Internal is directly under).

Question 5

Superior thyroid artery parallels:

Answer 5

External laryngeal Nerve

Question 6

Superior laryngeal artery parallels:

Answer 6

Internal laryngeal nerve; run in thyrohyoid membrane (pierces)

Question 7

Compared to the post. Digastric and hyoglossus muscle the Lingual artery is:

Answer 7

Deep

Question 8

What never travels with the lingual N?

Answer 8

Lingual artery

Question 9

The facial artery is deep to the:

Answer 9

Post. digastric and stylohyoid

Question 10

The submittal artery lies on:

Answer 10

The mylohyoid, and parallels here to mylohyoid nerve (Branch V3)

Question 11

The facial artery parallels:

Answer 11

The facial vein. But the vein is more superficial (over submandibular gland)

Question 12

The ascending pharyngeal artery comes off at:

Answer 12

C3 bifurcation. Lies deep to external carotid

Question 13

Where does the occipital artery travel to?

Answer 13

Posterior Skull. (Hypoglossal nerve crosses occipital and lies on lingual artery.)

Question 14

The hypoglossal turns anterior at:

Answer 14

the Occipital artery. It goes under the stylohyoid and posterior belly of digastric, lies on hyoglossus, passes deep to mylohyoid

Question 15

The carotid sheath contains:

Answer 15

Investing fascia around the common carotid artery (which splits into external and internal), Internal carotid, Jugular vein, CN X (vagus) and lymph nodes

Question 16

Does the internal jugular vein have a bifurcation?

Answer 16

No.

Question 17

What makes up the retromandibular vein

Answer 17

Superficial temporal and maxillary vein

Question 18

Describe the pathway of veins leading to the internal jugular

Answer 18

Anterior retromandibular + facial leads to the common facial which leads to the internal jugular

Question 19

Posterior retromandibular and the posterior auricular vein make up the

Answer 19

External jugular

Question 20

Where does the Accessory Cranial Nerve exit?

Answer 20

CN XI exits the jugular foramen with the internal jugular, IX, and X

Question 21

The carotid is mostly covered by the:

Answer 21

SCM

Question 22

What two muscles the the Accessory Nerve innervate?

Answer 22

SCM and Trapezius

Question 23

The Ansa Cervicalis is anterior to:

Answer 23

Internal jugular vein (Lying on top of internal jugular vein)

Question 24

Superior root of Ansa cervicalis is:

Answer 24

Superior root = C1 ( Thyrohyoid, geniohyoid)

Question 25

Inferior root of Ansa Cervicalis is:

Answer 25

C2 and C3: Innervates Strap Muscles (Sternohyoid, Sternothyroid, Omohyoid, thyrohyoid)

Question 26

Stylohyoid muscle parallels the:

Answer 26

Posterior digastric, and lies anterior

Question 27

What wraps around the digastric tendon and inserts into the hyoid?

Answer 27

Stylohyoid muscle

Question 28

The submandibular gland has two parts, Superficial and deep. Which part is above the Mylohyoid?

Answer 28

Deep

Question 29

The Hypoglossal N. XII can be found in which triangle?

Answer 29

The Carotid triangle. Turns and goes under posterior digastric and lies on top of hyoglossus. Then goes under mylohyoid

Question 30

Which nerve comes out from under the mandible, crosses submandibular triangle and lies on top of Mylohyoid; and parallels the submandibular artery?

Answer 30

The mylohyoid Nerve (Branch of V3)

Question 31

What emerges between the anterior and middle scalene?

Answer 31

The Brachial plexus and subclavian artery (3rd part). Subclavian artery is deep to brachial plexes

Question 32

What lies on top of the anterior scalene?

Answer 32

The Phrenic C3-C5, passes down and lies on top of the anterior scalene

Question 33

What emerges through the middle scalene?

Answer 33

The dorsal scapular nerve C5, Long thoracic nerve, C5-C7

Question 34

The dorsal scapular will emerge superior to the:

Answer 34

Suprascapular N.

Question 35

Cutaneous branches of cervical plexus emerge from:

Answer 35

Posterior SCM

Question 36

What triangle is the Ansa Cervicalis in?

Answer 36

Carotid Traingle

Question 37

The Lesser occipital C2 (Part of sensory to cervical plexus) parallels:

Answer 37

Posterior border of SCM

Question 38

The Great auricular C2, C3 (Part of sensory to cervical plexus) emerges from:

Answer 38

Behind the SCM

Question 39

Transverse cervical C2 C3 (Part of sensory to cervical plexus) crosses:

Answer 39

The SCM; provides sensory skin over anterior triangle

Question 40

Supraclavicular C3, C4 (Part of sensory to cervical plexus) supplies:

Answer 40

Upper chest and shoulder

Question 41

What is the Motor of the Cervical Plexus C1-C3:

Answer 41

``` Ansa Cervicali Superior root Anterior C1 (Catches a ride with hypoglossal n) Inferior root Posterior, C2-3 ```

Question 42

What are the Arteries of the Posterior Triangle?

Answer 42

- Subclavian: Emerges between anterior and middle scalenes - Occipital: Branch of external carotid - Transverse cervical: Superior and parallel to clavicle off of thyrocervical trunk - Suprascapular: Posterior and parallel to Clavicle comes off of thyrocervical trunk - Dorsal Scapular: Branch of transverse cervical, parallels after branches. Rises from subclavian artery

Question 43

External jugular Vein:

Answer 43

Comes out of parotid gland and crosses SCM; dumps into subclavian Vein with great auricular on top of SCM

Question 44

Greater horn of hyoid:

Answer 44

Hyoglossus, Middle constrictor PA3

Question 45

Lesser horn of Hyoid:

Answer 45

Stylohyoid ligament PA2

Question 46

Posterior triangle veins that don't parallel their artery:

Answer 46

Transverse cervical vein Occipital vein External vein Suprascapular vein