Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Anatomy- Head and Neck > Pharynx and Larynx > Flashcards

Pharynx and Larynx Flashcards

1
Q

Oropharynx

A

extends from the level of the palatoglossal arches to the caudal border of the soft palate and the base of the epiglottis at the caudal end of the root of the tongue; dorsal and ventral boundaries are the soft palate and the root of the tongue; lateral wall contains the palatine tonsil and the tonsillar fossa

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Palatine tonsil

A

elongated and located caudal to the palatoglossal arch; covered by the semilunar fold

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Semilunar fold

A

medial wall of the tonsillar fossa; covers the palatine tonsil

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Opening of the nasolacrimal duct

A

on the floor of the rostrolateral end of the ventral meatus. on the ventral aspect of the alar fold; comes from the lacrimal sac at the medial commissure of the eye

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Nasopharynx

A

extends from the choanae to the junction of the palatopharyngeal arches at the caudal border of the soft palate

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Palatopharyngeal arch

A

extends caudally on each side from the caudal border of the soft palate to the dorsolateral wall of the nasopharynx; fold of mucosa that covers the palatopharyngeus muscle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Opening of the auditory tube

A

oblique, slit-like opening in the nasopharynx; on the lateral wall, dorsal to the middle of the soft palate

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Pharyngoesophageal limen

A

annular constriction at the level of the cricoid cartilage; caudal boundary of the the laryngopharynx from the esophagus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Laryngopharynx

A

dorsal to the larynx; extends from the palatopharyngeal arches to the beginning of the esophagus (pharyngealesophageal limen)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Cricopharyngeus muscle

A

caudally its fibers blend with the esophagus

origin: lateral surface of the cricoid cartilage
insertion: median dorsal raphe of the laryngopharynx;
action: aid directly in swallowing
innervation: Glossopharyngeal and vagus nn.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Thyropharyngeus muscle

A

rostral to the cricopharyngeus and caudal to the hyopharyngeus

origin: lateral side of the thyroid lamina
insertion: median dorsal raphe of the pharynx
action: aid directly in swallowing
innervation: Glossopharyngeal and vagus nn.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Hyopharyngeus muscle

A

origin: 2 parts- lateral surface of the thyrohyoid bone, lateral surface of the ceratohyoid bone
insertion: median dorsal raphe of the pharynx
action: aid directly in swallowing
innervation: pharyngeal branches of the Glossopharyngeal nerve (CN IX) and Vagus nerve (CN X)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Epiglottic cartilage

A

lies at the entrance to the larynx; lingual surface is attached to the basihyoid bone and faces the oropharynx; apex lies just dorsal to the edge of the soft palate; lateral margin is attached by mucosa to the cuneiform process of the arytenoid to form the aryepiglottic fold

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Aryepiglottic fold

A

attachment of the lateral epiglottic cartilage to the cuneiform process of the arytenoid cartilage; mucosal fold

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Thyroid cartilage

A

forms a deep trough, open dorsally, cartilage of the larynx

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Rostral cornu

A

articulates with the thyrohyoid bone, process off the thyroid cartilage

17
Q

Caudal cornu

A

articulates with the caudal aspect of the cricoid cartilage; ventrally, the caudal border is notched by the caudal thyroid incisure; process off the thyroid cartilage

18
Q

Caudal thyroid incisure

A

notch in the caudal border of the ventral part of the thyroid cartilage, caudal cornu

19
Q

Cricothyroid ligament

A

attaches the caudal border of the thyroid cartilage to the ventral arch of the cricoid cartilage

20
Q

Cricoid cartilage

A

forms a complete ring that lies partially within the trough of the thyroid cartilage; wide dorsal plate (lamina) and a narrow ventral arch; near the caudal border at the junction of the lamina and the arch, there is a lateral facet for articulation with the caudal cornu of the thyroid cartilage; on the cranial border of the lamina, there is a prominent pair of lateral facets for articulation with the arytenoid cartilage

21
Q

Arytenoid cartilage

A

paired, irregular in shape, located in a sagittal plane; each articulates medially with a facet on the rostral border of the cricoid lamina and has 4 processes

22
Q

Muscular process

A

lateral

23
Q

Vocal process

A

ventrally directed

24
Q

Corniculate process

A

dorsal

25
Q

Cuneiform process

A

rostral to corniculate process

26
Q

Vestibular fold

A

extends from the thyroid cartilage ventrally to the ventral portion of the cuneiform process and forms the rostral boundary of the laryngeal ventricle

27
Q

Laryngeal ventrible

A

diverticulum of the laryngeal mucosa bounded laterally by the thyroid cartilage and medially by the arytenoid cartilage; opens into the larynx between the vestibular fold rostrally and vocal fold caudally

28
Q

Vocal fold

A

attached between the vocal process of the arytenoid and the midventral part of the thyroid cartilage

29
Q

Glottis

A

consists of vocal folds, the vocal processes of the artenoid cartilages

30
Q

Rima glottidis

A

narrow passageway through the glottis; size and shape can be altered by muscular activity

31
Q

Cricothyroid muscle

A

lies ventral to the insertion of the sternothyroideus muscle and passes from the cricoid cartilage to the thyroid lamina

action: tenses the vocal fold indirectly, draws ventral parts of the cricoid and thyroid cartilages together
innervation: cranial laryngeal nerve

32
Q

Dorsal cricoarytenoid muscle (cricoarytenoideus dorsalis)

A

origin: dorsolateral surface of the cricoid cartilage
insertion: muscular process on the lateral surface of the arytenoid cartilage
action: rotates the arytenoid so that the vocal process moves laterally, opening the glottis; only muscle with that primary function
innervation: caudal laryngeal nerve

33
Q

Lateral cricoarytenoid muscle (cricoarytenoideus lateralis)

A

origin: lateral surface of the cricoid cartilage
insertion: arytenoid cartilage between the cricoarytenoideus dorsalis and the vocalis
action: close the glottis by pulling the muscular process ventrally and thus moving the vocal process medially
innervation: caudal laryngeal nerve

34
Q

Thyroarytenoid muscle

A

gives rise to the vocalis muscle medially and ventricularis muscle rostrally

origin: internal midline of the thyroid cartilage and inserts on the arytenoid cartilage
action: relax vocal fold, constrict glottis
innervation: caudal laryngeal nerve

35
Q

Vocalis muscle

A

medial division of the thyroarytenoid muscle

origin: internal midline of the thyroid cartilage
insertion: vocal process of the arytenoid cartilage
action: Relaxes vocal fold
innervation: Caudal laryngeal n.

Anatomy- Head and Neck (12 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions