Dissection 8: Pharynx, Larynx, and Nasal Cavity Flashcards Preview

Head and Neck Anatomy > Dissection 8: Pharynx, Larynx, and Nasal Cavity > Flashcards

Flashcards in Dissection 8: Pharynx, Larynx, and Nasal Cavity Deck (35):
1

Aryepiglottic folds

Mucosal folds extending from epiglottis to arytenoid cartilages and forming the borders of the laryngeal inlet.

2

Auditory tube opening

Located within the nasopharynx just under the torus tubarius.

3

Cervical sympathetic trunk

Slender, vertically coursing nerve lying medial to the vagus nerve having ganglion along its length, particularly the large superior cervical ganglion.

4

Common carotid artery

Medial to IJV.

5

Cricoid cartilage

Just inferior to the laryngeal inlet; its lamina forms a bulge that projects into the laryngopharynx forming the piriform recesses on each side.

6

Cricothyroid muscle

Small, paired muscles on the external surface of the larynx spanning between cricoid cartilage and thyroid cartilage.

7

Epiglottic vallecullae

Paired concavities between the posterior one third of the tongue and the tip of the epiglottis.

8

Epiglottis

Pear-shaped cartilage that occupies the anterior superior aspect of the larynx.

9

Foramen cecum

Small, midline depression in the tongue at the junction of its anterior two thirds and posterior one third.

10

Glossopharyngeal nerve

Seen coursing somewhat vertically as it wraps around the stylopharyngeus muscle.

11

Hypoglossal nerve

Seen descending from base of skull and coursing laterally and anteriorly around the external carotid artery at the origin of the occipital artery.

12

Infraglottic region

Area of the larynx below the true vocal folds.

13

Internal jugular vein

Lies lateral to the common carotid artery.

14

Laryngeal inlet

Area of the pharynx below the tip of the epiglottis and extending down to the level of the cricoid cartilage.

15

Levator veli palatini muscle

Vertically oriented muscle between the torus tubarius and the soft palate. It elevates the soft palate when swallowing and is innervated by the vagus nerve.

16

Lingual tonsils

Located on the posterior one third of the tongue.

17

Musculae uvulae

Two parallel muscles of the soft palate that extend to the uvula.

18

Nasopharynx

Upper area of the pharynx between the sphenoid sinus and the uvula.

19

Oropharynx

Area of the pharynx between the soft palate and the tip of the epiglottis.

20

Piriform recess

Two vertical gutters in the laryngopharynx that lie on either side of the cricoid lamina that bulges into the pharynx.

21

Posterior cricoarytenoid muscle

Muscle that spans between the lamina of the cricoid cartilage to the muscular processes of the arytenoid cartilages.

22

Salpingopalatine fold

Small fold in the nasopharynx that extends from the torus to the soft palate. It overlies the levator veli palatini muscle.

23

Salpingopharyngeal fold

A small fold in the nasopharynx that extends downward from the torus to the pharynx. It overlies the salpingopharyngeus
muscle.

24

Salpingopharyngeus muscle

Small vertical muscle deep to the salpingopharyngeal fold. It is one of the elevators of the pharynx when swallowing.

25

Soft palate and uvula

Moveable structure attached to the posterior end of the hard palate; the uvula moves up and down to seal the oropharynx from the nasopharynx.

26

Sphenoid sinus

A paranasal sinus located in the body of the sphenoid bone. It is lined by mucosa and drains into the sphenoethmoidal recess.

27

Stylopharyngeus muscle

A cylindrical muscle that is obliquely positioned lateral to the pharynx; it inserts into the pharyngeal wall by passing between
the superior and middle pharyngeal constrictor muscles. CN IX wraps around it.

28

Sublingual folds

Two, raised, mucosal folds on the floor of the mouth.

29

Superior cervical sympathetic ganglion

Large swelling at the upper end of the cervical sympathetic trunk.

30

Tensor veli palatini muscle

A vertically oriented muscle just anterior and lateral to the levator veli palatini. It tendon turns 900 around the hamulus of the medial pterygoid plate.

31

Vagus nerve

Vertically coursing nerve lying lateral to the cervical sympathetic trunk and between the common carotid artery and the IJV.

32

Ventricle of larynx

Small pocket or cul-de-sac that extends laterally between the true and false vocal folds.

33

Vestibular folds

Mucosal folds above the ventricle of the larynx. Also known as false folds.

34

Vestibule of larynx

Region of the inner larynx between the aryepiglottic folds and the true vocal folds. Also called supraglottic region.

35

Vocal folds

Mucosal folds just inferior to the opening of the ventricle of the larynx.