Quiz 1

Question 1

What is the anatomical name for the “Adam’s Apple”?

What cervical vertebrae level is it found?

Answer 1

Laryngeal prominence (part of Thyroid cartilage)
C4-5

Question 2

What bone of the anterior neck is at C3 vertebral level?

Answer 2

Hyoid bone

Question 3

What anterior neck cartilage is at C6 level?

Answer 3

Cricoid cartilage (a cartilage of the larynx)

Question 4

Which spinal nerves innervate superficial neck?

Answer 4

C2-4 (C2 includes angle of mandible)

Question 5

Which nerve innervates the anterior 2/3 of head (=face)?

Answer 5

Trigeminal Nerve (V)

Question 6

What are the borders of the Carotid Triangle?

Answer 6

Post Belly of Digastric m.
Sup Belly of Omohyoid m.
SCM

Question 7

What is contained within the Carotid Triangle?

Answer 7

Common carotid artery & bifurcation into internal/external carotid aa.
Internal jugular vein
Vagus nerve (X)

Question 8

What two triangles of the neck are Posterior Triangles?

Answer 8

Supraclavicular and Occipital

Question 9

What are the borders of the Supraclavicular triangle?

Answer 9

Clavicle
SCM
Inferior belly of Omohyoid m.

Question 10

What are the borders of the Occipital triangle?

Answer 10

Trapezius
SCM
Inferior belly of Omohyoid

Question 11

What is found in the Supraclavicular triangle?

Answer 11

Subclavian a. and v.
Scalene m.
Phrenic n.
Elements of brachial plexus

Question 12

What is found in the Occipital triangle?

Answer 12

XI nerve

Cutaneous nerves from cervical plexus

Question 13

What makes up the cervical plexus?

Answer 13

Ventral rami C1-4 spinal nerves

Question 14

What are the 5 types of branches of the cervical plexus?

Answer 14

4 Cutaneous branches a)Lesser occipital b)Great auricular c)Transverse cervical d)Supraclavicular
Communicating/hitchhiker branches
Ansa cervicalis n.
Phrenic n.
Motor branches (to muscles of deep ant. neck)

Question 15

How many branches in the neck does the internal carotid artery have?

Answer 15

Zero

Question 16

How many branches in the neck does the external carotid artery have?

Answer 16

1) Superior Thyroid 2) Ascending Pharyngeal
3) Lingual 4) Facial 5) Occipital
6) Posterior Auricular 7) Maxillary
8) Superficial Temporal

Question 17

Where does the right common carotid artery originate?

Answer 17

Brachiosephalic artery

Question 18

Where does the left common carotid artery originate?

Answer 18

Aortic arch

Question 19

What cervical level does the common carotid bifurcate to the internal and external carotid arteries?

Answer 19

C3-4

15

Question 20

Which terminal branch of the external carotid artery is the biggest?

Answer 20

Maxillary artery

18

Question 21

What are the four branches of the subclavian arteries?

Answer 21

1) Internal Thoracic
2) Vertebral
3) Thyrocervical trunk
a-inferior thyroid b-ascending cervical c-tranverse cervical d-suprascapular
4) Costocervical trunk
a-deep cervical branch b-sup. intercostal branch

Question 22

What ventral ramii fibers make up the lesser occipital nerve?
Where does this nerve innervate?

Answer 22

C2 fibers

-Innervates skin of post. scalp behind ear

Question 23

What ventral fibers make up the great auricular nerve?

Where does this nerve innervate?

Answer 23

C2, C3

Sensory innervation to skin below and anterior to external ear and part of ear and skin over angle of mandible

Question 24

What ventral ramii nerve roots form the Transverse Cervical nerve?
What does this nerve innervate?

Answer 24

C2, C3

Innervates most skin of the anterior neck

Question 25

What ventral ramii nerve roots form Supraclavicular nerve? | What does this nerve innervate?

Answer 25

C3, C4 Innervates skin of base of neck, upper thorax, and top of the shoulder Radiates across clavicular region; has 3 branches a) medial b) intermediate c) lateral

Question 26

Hitchhiking Nerves: C1 hitchhikes w/ ? and innervates ? C2,3,4 hitchhike w/ ? and innervate?

Answer 26

C1 hitchhikes w/ cranial nerve XII - hypoglossal n. Motor inn. to Geniohyoid m. and Thyrohyoid m. C2,3,4 hitchhikes w/ cranial n. XI - spinal accessory n. Sensory inn. to SCM (C2) and Trapezius (C3,4)

Question 27

What ventral ramii roots form Ansa Cervicalis? | What does it innervate?

Answer 27

C1, 2, 3 Innervates all infrahyoid muscles except thyrohyoid m. (Sternohyoid, sternothyroid, omohyoid)

Question 28

What are the 2 roots of the ansa cervicalis calles?

Answer 28

``` Superior root (C1) a.k.a. Descending Hypoglosal Ramus of ansa cervicalis Inferior Ramus (C2,3) a.k.a. Descending cervical ramus of ansa cervicalis ```

Question 29

What ventral ramii make up the phrenic nerve? | What does it innervate?

Answer 29

C3, 4, 5 Motor and sensory to diaphragm Motor to scalene mm. & prevertebral mm.

Question 30

What are the 4 infrahyoid muscles?

Answer 30

Sternohyoid Sternothyroid Omohyoid Thyrohyoid

Question 31

What is the origin and insertion for the omohyoid m?

Answer 31

Body of Hyoid, connected by tendinous sling on clavicle, Sup. border of Scapula

Question 32

What nerves innervate the infrahyoid muscles?

Answer 32

Ansa cervicalis = sternohyoid, sternothyroid, omohyoid | C1 = thyrohyoid

Question 33

What are the 4 paired suuprahyoid muscles?

Answer 33

Digastric Stylohyoid Mylohyoid Geniohyoid

Question 34

Why do the digastric ant and post bellies have 2 different innervations? What are they?

Answer 34

They have 2 different embryonic origins Ant. belly = V n. (trigeminal) Post. belly = VII n. (facial)

Question 35

What nerve innervates Stylohyoid m. Mylohyoid m. Geniohyoid m.

Answer 35

``` Styloid = VII Mylohyoid = V Geniohyoid = C1 ```