chapter 5 neck cross sectional anatomy

considered the smallest of the salivary glands

sublingual

the thyroid gland is located at the level of the

cricoid cartilage

how many cartilages make up the larynx?

9

foreign objects can commonly become lodged in the

valleculae

the brachial plexus is located between the

anterior and middle scalene muscles

typically the largest vascular structure located in the neck

internal jugular vein

muscle that covers most of the anterior surface of the neck

platysma

cartilage that the epiglottis is attached to

thyroid

muscle that divides the neck into anterior and posterior triangles

sternocleidomastoid

acts as an attachment site for muscles associated with swallowing

hyoid bone

the _____ is a small pear-shaped cavity located on each side of the opening to the larynx

piriformsinus

the largest and most superior cartilage making up the larynx is the

thyroid cartilage

the common carotid artery bifurcates at the level of

C3, C4

the vocal cords are best imaged during ____ breathing

quiet

another name for the false vocal cords is the

vestibular folds

the ____ cartilage forms the base of the larynx

cricoid

in the roof and posterior wall of the nasopharynx is a collection of lymphoid tissue known as the

pharyngeal tonsils

the space between the true and false vocal cords

laryngeal ventricle

the esophagus enters the abdominal cavity to join the stomach through an opening in the diaphragm termed the

esophageal hiatus

the suprahyoid and infrahyoid regions of the neck can be further divided by ____ that separate the anatomy of each region into compartments or spaces that contain distinct anatomic structures

fascial planes

the lymph nodes of the neck can be classified or divided into ____ levels or regions for ease of identification, both clinically and surgically

7

approximately _____ sublingual ducts open in a line along the floor of the mouth

10 to 20

the submandibular duct is also referred to as

Wharton’s duct

involved in the movement of the vocal cords for the production of sound

corniculate cartilages

the larynx extends from approximately the __ __to__ __ cervical vertebrae

3rd to 6th

the external carotid artery passes through the ______ as it ascends the neck

parotid gland

ring that forms the base of the larynx

cricoid cartilage

the false vocal cords are _____ to the true vocal cords

superior

the trachea is reinforced by many ____ pieces of cartilage

C-shaped

the ____ encloses the external jugular vein

carotid sheath

three paired cartilages of the larynx

arytenoids, corniculate, cuneiform

the internal jugular veins drain blood from which parts of the body?

brain and superficial parts of face and neck

from which artery does the right common carotid artery arise?

brachiocephalic artery

why does the parotid gland’s appearance differ from other salivary glands?

it contains fatty tissue and intraglandular lymph nodes

the parotid gland is situated in front of the ___

auricle

parotid gland is wedged between the _____

ramus of the mandible and sternocleidomastoid muscle

parotid gland extends inferiorly from the level of __ __to the _____

external auditory meatus, angle of mandible

posterior extension of the oral cavity and extends from the soft palate to level of hyoid bone

oropharynx

2 hormones that are excreted by the thyroid gland

T3, T4

what cartilages make up the larynx?

\-1 epiglottis

\-1 thyroid

\-1 cricoid

\-2 arytenoids

\-2 corniculate

\-2 cuneiform

what important structures are located within the larynx?

true and false vocal cords

what level does the common carotid bifurcate into the internal and external carotid arteries?

thyroid cartilage (C3-C4)

what is the dilation found at the origin of the internal carotid artery called?

carotid sinus contains baroreceptors which react to changes in arterial blood pressure