Neck 1 Flashcards by Adriana Beruvides

what are these different sections of the neck?

posterior triangle
anterior triangle
root

How well did you know this?

Not at all

Perfectly

what can you find in the anterior triangle of the neck?

carotid pulse, jugular vein, ansa cervicalis, many hyoid muscles

How well did you know this?

Not at all

Perfectly

what are some structures you can find in posterior triangle?

lymphatics, trapezius, jugular

How well did you know this?

Not at all

Perfectly

what structures can you find in the root section of the neck?

jugular notch
Supraclavicular notch
Clavicle

How well did you know this?

Not at all

Perfectly

______ lymph nodes are lymph nodes in front of ear

Preauricular

How well did you know this?

Not at all

Perfectly

what are the 3 different neck zones?

Zone 1: most inferior (clavicle → cricoid cartilage)
Zone 2: cricoid cartilage → angle of mandible
Zone 3: angle of mandible → base of skull

How well did you know this?

Not at all

Perfectly

________ is fibrous connective tissue enveloping muscles, neurovascular bundles, viscera

Fascia:

How well did you know this?

Not at all

Perfectly

_______ are potential spaces between fascia/viscera that exist pathologically

Fascial spaces

How well did you know this?

Not at all

Perfectly

________ are deep to/attached to skin and don’t enclose muscles

Superficial layers

How well did you know this?

Not at all

Perfectly

_______ surround muscle, bones, nerves vessels

Deep layers

How well did you know this?

Not at all

Perfectly

the ______ is the only bone does not articulate with any other bone! But articulates with CT

Hyoid

How well did you know this?

Not at all

Perfectly

______ are muscles located above the hyoid

Suprahyoids

How well did you know this?

Not at all

Perfectly

what are the suprahyoid muscles?

Stylohyoid, digastric (ant, post belly), mylohyoid

How well did you know this?

Not at all

Perfectly

_______ are the muscles below hyoid

Infrahyoids

How well did you know this?

Not at all

Perfectly

what are the infrahyoid muscles?

omohyoid, thyrohyoid, sternohyoid, sternothyroid

How well did you know this?

Not at all

Perfectly

Sternocleidomastoid
Origin:
Insertion:
Innervation:
Action:

O: manubrium, medial clavicle
Insertion: Mastoid process, superior nuchal line
Inn: CN XI
A: flex neck, elevate sternum, inhalation, rotate neck

Stylohyoid
Origin:
Insertion:
Innervation:

O: styloid process
I: body of hyoid
Inn: CN VII

Anterior Digastric
Origin:
Insertion:
Innervation:
Action:

O: fossa of mandible
I: body of hyoid
In: CNV3
A: depresses mandible, elevates hyoid

** part of digastric that is under jaw**

Posterior Digastric
Origin:
Insertion:
Innervation:

O: temporal bone
I: body of hyoid
In: CN VII
A: depresses mandible, elevates hyoid

** part of digastric that is behind mandible **

Mylohyoid
Origin:
Insertion:
Innervation:

O: mylohyoid line of mandible
I: body of hyoid
In: CN V3

Geniohyoid
Origin:
Insertion:
Innervation:

O: genial tubercles of mandible
I: body of hyoid
In: C1 via CN XII

Omohyoid
Origin:
Insertion:
Innervation:

O: scapula
I: hyoid
In: Ansa cervicalis

Thyrohyoid
Origin:
Insertion:
Innervation:

O: thyroid cartilage
I: hyoid
In: C1 via CN XII

Sternohyoid
Origin:
Insertion:
Innervation:

O: sternum
I: hyoid
In: ansa cervicalis

Sternothyroid Origin: Insertion: Innervation:

O: sternum I: thyroid cartilage In: ansa cervicalis

what smaller triangles can the anterior cervical triangle be broken into?

Carotid triangle Submental triangle Submandibular triangle

what muscles make up the carotid triangle?

Sternocleidomastoid Omohyoid (sup. belly) Digastric (post. belly)

what is the carotid sheath made up of?

common carotid artery, internal jugular vein, vagus nerve

The common carotid artery is always ______ while the jugular vein is always _____

medial, lateral

what is the common carotid artery made up of? does it bifurcate?

- carotid body + carotid sinus -yes, it bifurcates into internal and external carotid artery

what cranial nerve runs along the carotid artery?

IX (glossopharyngeal)

The carotid body has _______receptors and detects _____

chcemreceptors, partial pressure of O2, CO2, pH, rwmp

carotid sinus has ____receptors that measure

baroreceptors, BP

submandibular triangle consists of what things?

Submandibular gland Facial v. and a. Lymphatics CN XII, nerve to mylohyoid, C1 via CXII

The ______ is the hollow muscular organ forming an air passage to the lungs and holding the vocal cords in humans and other mammals; the voice box.

larynx

what is the larynx surrounded by?

Superior thyroid a, external carotid a., common carotid a

_____________ is a neural loop in the neck formed from C1, C2, C3

ansa cervicalis

The ansa cervicalis lays on and supplies motor innervation to what three muscles?

Sternothyroid Sternohyoid Omohyoid