Chapter 8 pt 3: Head and Neck Flashcards Preview

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Flashcards in Chapter 8 pt 3: Head and Neck Deck (293)
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1

what are the 3 longitudinal muscles?

-Stylopharyngeus
-Salpingopharyngeus
-Palatopharyngeus

2

from the syloid process

Stylopharyngeus muscle

3

from catilaginous pharyngotympanic tube

Salpingopharyngeus muscle

4

from soft palate

Palatopharyngeus muscle

5

origin: Medial side of base of styloid process

Stylopharyngeus muscle

6

insertion: Pharyngeal wall

-Stylopharyngeus
-Salpingopharyngeus
-Palatopharyngeus

7

innervation: Glossopharyngeal (IX)

-Stylopharyngeus

8

function: elevation of pharynx

-Stylopharyngeus
-Salpingopharyngeus

9

origin: Inferior aspect of pharyngeal end of pharyngeal tympanic tube

-Salpingopharyngeus

10

innervation: vagus nerve (X)

-Salpingopharyngeus
-Palatopharyngeus

11

origin: Upper surface of palatine aponeurosis

-Palatopharyngeus

12

function: Elevation of pharynx; closure of the oropharyngeal isthmus

-Palatopharyngeus

13

allows muscles, nerves, and vessels to pass in and out of the oral cavity`

The oropharyngeal triangle

14

behind the posterior apertures (choanae) of the nasal cavity

nasopharynx

15

closes the pharyngeal isthmus

Elevation of the soft palate and constriction of the palatopharyngeal sphincter

16

forms the pharyngeal (adenoids), palatine, and lingual tonsils

collection of lymph tissue

17

opens into the nasopharynx

opening to pharyngotympanic tube

18

Vessels that supply the upper part of the larynx include:

-ascending pharyngeal, -palatine
-tonsillar branches of the facial artery
-branches of the maxillary and lingual

19

lower part of larynx is supplied by:

pharyngeal branch (artery)

20

form a plexus

veins of pharynx

21

-Superiorly they drain into the pterygoid plexus

-Inferiorly they drain into the facial and jugular veins

veins of pharynx

22

drain into the deep cervical nodes, including:
-Retropharyngeal
-Paratracheal
-infrahyoid nodes

lymphatic vessels of pharynx

23

drain into jugulodigastric nodes

palatine tonsils

24

where does the innervation of the pharynx come from?

Motor and sensory innervation is mostly by branches of CN IX and X, forming a plexus

25

what is the pharyngeal plexus formed by?

-Pharyngeal branch of vagus (X) nerve
-External laryngeal nerve
-Superior laryngeal branch
-Pharyngeal branch of glossopharyngeal (IX)

26

-musculoligamentous structure
-continuous with the trachea and opens into the pharynx posterior and inferior to the tongue

larynx

27

It acts as both a valve to close off lower respiratory tract and as a sound producing structure

larynx

28

Composed of:
-cartilages (cricoid, thyroid, epiglottis, arytenoid, corniculate, and cuneiform), -membranes
-muscles

larynx

29

-completely closes airway
-most inferior cartilage

Cricoid

30

-enlarged and has 2 depressions separated by a vertical ridge that attaches to the esophagus
-has 2 facets on each side for articulation with thyroid and arytenoid cartilages

posterior surface of cricoid