Brainscape's Knowledge GenomeTM

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


See full index

anatomy lecture > oral and pharyngeal musculature > Flashcards

oral and pharyngeal musculature Flashcards

1
Q

what are the structures you can see in the back of the mouth when it is open?

A 
palatoglossal arch (most anterior)
palatine tonsil(middle)
palatopharyngeal arch (posterior )
frenulum
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

what nerve innervates the muscle of the lips and what is the muscle called?

A

CN VII Facial nerve

orbicularis oris muslce

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

what are the attachment points of the milohyoid muscle and what nerve innervates it and a motion of the muscle?

A

mylohyoid line of the mandible to the body of the hyoid bone
innervation is the CN V3
motion: elevates the floor of the mouth and hyoid bone

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

what are the attachment points of the geniohyoid muscle and what nerve innervates it?

A

attaches at the inferior mental spine of the mandible to the lesser horn of hyoid bone
CN XII hypoglossal or C1(ansa cervicalis) innervates it
motion: depresses mandible and elevates hyoid bone

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

what are the attachment points of the stylohyoid muscle and what nerve innervates it and name one motion?

A

attachment: styloid process of the temporal bone to the lesser horn of hyoid bone
innervation: CN VII facial
motion: pulls hyoid bone posteriorly and superiorly during swallowing

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

what are the attachments points of the hyoglossus muscle and what nerve innervates it and name one motion

A

attachment: body and greater horn of hyoid to the lateral side of the tongue between the styloglossus and inferior longitudinal muscle of tongue
innervation: CN XII
motion: depresses the tongue

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

what are the attachment points of the styloglossus muscle and what nerve innervates it and name one motion?

A

attachement: styloid process of temporal bone and stylomandibular ligament to the dorsal lateral tongue and mixes with inferior longitudinal muscle
innervation: CN XII
motion: elevates and retracts the tongue

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

what are the attachment points of the palatoglossus muscle and what nerve innervates it and name a motion

A

attachment: palatine aponeurosis to the lateral tongue to dorsum and fibers of the transverse muscle
innervation: CN X
motion: elevates root of the tongue

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

what are the attachment points of the genioglossus and what nerve innervates it and name a motion

A

attachment: superior genial spine to the hyoid body and to the bottom of the tongue
innervation CN XII
motion: protrudes the tongue

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

intrinsic muscles of tongue

superior longitudinal muscle fiber direction motion and nerve innervation

A

fibers run anteriolaterally from the epiglottis and medial lingual septum

innervation: CN XII
motion: shortens tongue, makes dorsum concave

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

intrinsic muscles of tongue

inferior longitudinal muscle fiber direction, motion, and nerve innervation

A

fibers run anteriorly form the root to the apex of the tongue

innervation: CN XII
motion: shortens tongue, makes tongue convex

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

intrinsic muscles of tongue

transverse muscle fiber direction, motion and nerve innervation

A

fiber run laterally from the lingual septum to the lateral tongue

innervation: CN XII
motion: narrows tongue, elongates tongue

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

intrinsic muscles of tongue

vertical muscle fiber direction, motion, and nerve innervation

A

fibers run inferiorly from the dorsum of the tongue to its ventral surface(top to bottom)

innervation: CN XII
motion: widens and flattens tongue

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

order of the intrinsic muscles from dorsum ventral side

A

superior longitudinal
vertical and transverse
inferior longitudinal

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

describe the pathway the nasopalatine nerve gets to its sensory region

A

leaves the maxillary nerve proper at the pterygopalatine ganglion and enters sphenopalatine foramen and travels along the nasal septum and eventually enters the incisive canal and exits via the incisive foramen.

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

describe the pathway for the greater palatine nerve to get to the palate.

A

leaves the pterygopalatine ganglion and goes down the palatine canal and enters the palate via the greater palatine foramen.

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

describe the pathway for the lesser palatine nerve to get to the palate?

A

same route as greater branch but it enters the lesser palatine canal and exits the lesser palatine foramen into the uvula.

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

what are the five muscles of the palate and their innervations

A
  1. tensor veli palatini CN V3
  2. levator veli palatini CN X
  3. uvular muscle CN X
  4. palatoglossus CN X
  5. palatopharyngeus CN X
19
Q

what bony structure does the tensor veli palatini wrap around?

A

the pterygoid hamulus

20
Q

what motion does the palatoglussus do and what structure does it run in?

A

pulls the tongue superiorly towards the palate

runs in the palatoglossus fold (more anterior)

21
Q

what motion does the palatopharygeus do and what structure does it run in?

A

elevates pharynx and larynx

runs in the palatopharyngeal fold (more posterior)

22
Q

what are the 3 regions of the pharynx and what is the sensory innervation for each region

A

nasopharynx CN V2
oropharynx CN IX
laryngopharynx CN X

23
Q

what are the 3 constrictor muscle for the the pharynx

A

superior, middle, and inferior pharyngeal constrictors

24
Q

what pharyngeal elevating muscle runs between the superior and middle pharyngeal constrictors?

A

stylopharyngeus

25
Q

what are the 3 elevator muscles of the pharynx?

A

salphingopharyngeus
palatopharyngeus
stylopharygneus

26
Q

what is the name of the fold that the salpingopharygeus runs in? and where does it terminate

A

runs in the salpingopharyngeal fold and ends just inferior to the eustationary tube aka pharyngotympanic tube

27
Q

what is the motor innervation of the pharynx and the exception

A
  • CN X vagus all muscles except stylopharyngeus

- stylopharyngeus m. is CN IX glossopharyngeal nerve

28
Q

what is the vascular supply of the pharynx

A

ascending pharyngeal
superior thyroid
inferior thyroid
some branches of facial and maxillary artery

29
Q

describe what happens in a cough reflex regarding nerves involved and what the vocal ligaments do?

A

temporary closure of vocal ligaments to build up air pressure.
CN X both afferent and efferent

30
Q

what are the four cartilages of the larynx?

A

thyroid
cricoid
epiglottis
arytenoid

31
Q

name the three ligaments of the larynx

A

thyrohyoid ligaments
cricothryoid ligaments
vocal ligaments

32
Q

what nerve innervates or is responsible for general sense above the vocal ligaments?

A

internal laryngeal branch of the the superior laryngeal n of the Vagus nerve

33
Q

what nerve innervates the cricothyroidius mucles?

A

external laryngeal branch of the the superior laryngeal n of the Vagus nerve

34
Q

what nerve is responsible for the visceral sensory below the vocal cords and the rest to the laryngeal muscles?

A

the recurrent laryngeal branch of the Vagus nerve.

35
Q

what is the vascular supply of the larynx

A
  • superior thyroid branch of the external carotid

- inferior thyroid branch of the thryrocervical trunk

36
Q

what is the important joint of the larynx?

A

cricoarytenoid joint

synovial joint that ADducts and ABducts the vocal ligaments

37
Q

what does the cricothyroidius do?

A

pulls the thyroid cartilage anteriorly to the provide extra tension on the vocal ligaments

38
Q

when the posterior cricoarytenoid muscles contract what happens to the vocal cords?

A

they aBduct

39
Q

when the lateral cricoarytenoid muscles contract what happens to the vocal cords?

A

they ADduct

40
Q

all tongue muscles are innervated by the CN XII hypoglossus except the ________ what nerve innervates it?

A

palatoglossus m.

CN X Vagus nerve

41
Q

all palate muscles are innervated by CN X except the _________, what nerve innervates this?

A

tensor veli palatine
CN V 3 mandibular branch
more specifically the pterygoid branch of V3

42
Q

all pharygeal muscles are innervated by CN X except the ______ muscle, what is it innervated by?

A

stylopharyngeus

CN IX glossopharyngeal

43
Q

all the muscles of the larynx are innervated by the recurrent larygneal branch of CN X,. what is the exception

A

the criothyroidius muscle is innervated by external laryngeal branch of the superior laryngeal branch of the Vagus nerve.

anatomy lecture (16 decks)

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