Brainscape's Knowledge GenomeTM

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


See full index

Anatomy 2 Unit 2 > 12 - Larynx > Flashcards

12 - Larynx Flashcards

1
Q

The larynx is a hollow

A

musculoligamentous structure with a cartilaginous framework, capping the lower respiratory tract.

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

The larynx is both a valve (or sphincter)

A

to close the lower respiratory tract, and an instrument to produce sound.

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

We will see that the larynx is suspended from the

A

hyoid bone superiorly and attached to the trachea inferiorly by membranes and ligaments.

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

The pharynx is a

A

musculofascial half-cylinder that links the oral and nasal cavities in the head to the larynx and esophagus in the neck. The pharyngeal cavity is common for the respiratory tract and digestive tract.

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

The pharynx is the

A

common entry to the digestive and respiratory tracts, two systems that connect directly with the external environment and allow direct access the our internal environment.

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

Thyroid Cartilage: 2 lamina unite

A

anteriorly, forming a Single cartilage

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

Thyroid Cartilage: Superior thyroid notch sits

A

superior to the laryngeal prominence. This is a palpable landmark, as is the inferior thyroid notch.

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

Thyroid Cartilage: Stem of

A

epiglottic cartilage attaches posteriorly via the Thyro-epilgottic ligament

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

Thyroid Cartilage: Anterior ends of vocal ligaments converge

A

converge below epiglottis

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

Thyroid Cartilage: The oblique line, found on the lamina, is the attachment site for

A

extrinsic muscles of the larynx (sternothyroid, thyrohyoid, & inferior constrictor mm.)

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

Thyroid cartilage: Superior horn attaches

A

via the lateral thyrohyoid ligaments to the hyoid bone.

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

Thyroid cartilage: Inferior thyroid cartilage horns articulate with

A

cricoid cartilage (medial surface)

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

Thyroid cartilage lies

A

Lies between C4 & C6

Hyaline cartilage

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

Corniculate Cartilage

A

Paired, minor cartilage

Small horn-shaped cartilages

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

Corniculate cartilage: Rest on apices of

A

of arytenoid cartilages

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

Corniculate cartilage: Lie in

A

aryepiglottic fold

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Corniculate cartilage: consists of

A

Elastic cartilage

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Triticeal Cartilage: is a

A

Paired, minor cartilage

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Triticeal Cartilage: consists of

A

Small rounded cartilages

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Triticeal Cartilage: Lie in

A

posterior fold of thyrohyoid membrane = lateral thyrohyoid ligament

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Triticeal Cartilage: these are

A

not always present

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Cricothyroid Joints - Synovial joints between

A

cricoid & thyroid cartilages

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Cricothyroid Joints - Held together by

A

cricothyroid ligaments

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Cricothyroid Joints - Anterior movement & tilting of

A

thyroid cartilage

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

Cricothyroid Joints - Inferior laryngeal nn. run just

A

posterior to joints

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

Larynx: Internal Spaces: Aditus –

A

superior opening (inlet)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

Larynx: Internal Spaces: Vestibule –

A

area superior to vestibular folds (false vocal cords)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

Larynx: Internal Spaces: Ventricle –

A

area between vestibular folds & vocal folds

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

Larynx: Internal Spaces: Infraglottic cavity

A

– area inferior to vocal folds (true vocal cords)

30
Q

Rima = space between

Vocal cords

A

the two folds R & L of the same pair

31
Q

Forced inspiration:

Vocal cords

A

Vocal folds abducted and rima glottidus wide open

vestibule open

32
Q

Vocal cords

Phonation:

A

vocal folds adducted and stridulating as air is forced between them

vestibule open

33
Q

Vocal cords

effort (forced) closure

A

vocal folds and vestibular folds adducted

Rima glottidus and vestibule closed.

34
Q

Food, etc. may enter

A

aditus & lodge in vestibule

35
Q

Blockage may seal off

A

larynx & produce muscle spasms

Vocal cords then close – no air passes

36
Q

Death results in ~5 min. if

A

larynx not opened

37
Q

Vocalis and thyroarytenoid muscles action

A

shortening/relaxation of vocal ligaments

38
Q

Laryngospasm: Posterior cryoarytenoid mm. vital in

A

maintaining open airway

39
Q

Laryngospasm: Laryngospasm is

A

spasmodic closure of glottis

40
Q

Laryngospasm: Life-threatening as breathing becomes

A

impossible

41
Q

Laryngospasm: Spasm of laryngeal mm. may occur from

A

number of causes

Irritating chemicals, pharmaceutical side effects, etc.

42
Q

Larynx: Arterial Supply: Superior Laryngeal a. – supplies

A

upper larynx

43
Q

Larynx: Arterial Supply: Inferior Laryngeal a. – supplies

A

lower larynx

44
Q

Superior Laryngeal a. – Br. of

A

Superior Thyroid a. (runs with Internal Laryngeal n.)

45
Q

Inferior Laryngeal a. – br. of

A

Br. of Inferior Thyroid a. (runs with Inferior Laryngeal n.)

46
Q

Superior thyroid a. branches to give

A

Superior laryngeal a. & Cricothyroid a.

Runs with the Internal Laryngeal n.
47
Q

Inferior thyroid a. branches to give

A

inferior laryngeal a. (not shown here)

Runs with the Inferior Laryngeal n.

48
Q

Larynx: Innervation (CN X): Superior Laryngeal n. –

A

gives rise to internal & external laryngeal nn.

49
Q

Larynx: Innervation (CN X): Internal Laryngeal n. –

A

pierces thyrohyoid membrane

50
Q

Larynx: Innervation (CN X): External Laryngeal n. –

A

runs superficial to cricothyroid m.

51
Q

Larynx: Innervation (CN X): Recurrent Laryngeal n. –

A

descends to circle aorta or subclavian a. & then ascends to larynx

52
Q

Larynx: Innervation (CN X): Inferior Laryngeal n. –

A

runs posterior to cricothyroid joint

53
Q

injury to laryngeal nn.: Injury to Internal Laryngeal nn. – causes

A

sensory loss to superior larynx

may enable food to more easily enter larynx

54
Q

injury to laryngeal nn. Injury to Inferior Laryngeal nn. – paralyzes

A

mm. ipsilateral, therefore paralysis of vocal fold ipsilateral

55
Q

Paralysis of inferior laryngeal nn. leads to

A

Leads to hoarseness as vocal folds cannot meet in midline

Bilateral loss causes almost total loss of voice

56
Q

thyroid cart stops at

A

superior/inferior horns

57
Q

Thyroid cart type

A

hyaline cart

58
Q

Thyroid cart oblique line attacment from

A

inferior p constrictor

59
Q

Lamina is a big

A

flat surface

60
Q

Signet ring shape

A

cricoid cart

61
Q

Corniculate and cuneiform

A

elastic - involved with motion

62
Q

Hyo epiglottic ligament is

A

firm enough, but very very mobile

63
Q

Corniculate and cuneiform in

A

quadrangular membrane - have mucosa over them

64
Q

Inferior border of quadrangular lig

A

vestibular lig

65
Q

Cricothyroid joint affects

A

tension on ligaments - moved by cricothyroid muscles

66
Q

Cricothyroid m innervated by

A

external laryngeal nerves

67
Q

Lateral cricothyroid ligament thickened superiory to form

A

vocal cord

68
Q

posterior cricoarytheniod

A

only muscle that opens airway - all intrinsic by inferior laryngeal, branch of recurrent laryngeal

69
Q

Transverse and oblique arytenoid msucles

A

close rima glotidis, also closes epiglotis over inlet

70
Q

Vocalis

A

contracts, loosening vocal cords

71
Q

Inferior laryngeal - becomes this after passing

A

cricothyroid joint

Anatomy 2 Unit 2 (15 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions