Brainscape's Knowledge GenomeTM

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


See full index

NE Exam 1 > Muscles Of Mastication > Flashcards

Muscles Of Mastication Flashcards

1
Q

What are the muscles of mastication?

A

Temporalis, masseter, lateral and medial pterygoids

All paired

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

What innervates the muscles of mastication?

A

Trigeminal nerve (CN V3)

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

The muscles of mastication move the mandible at which joint?

A

TMJ

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

What is the origin and insertion for the masseter muscle?

A

Origin: zygomatic arch
Insertion: mandibular ramus and angle

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

What is the action of the masseter muscle?

A

Elevates and protrudes the mandible

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

What is the specific innervation to the masseter muscle?

A

Masseteric nerve from CN V3

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

What is the origin and insertion of the temporalis muscle?

A

Origin: floor of temporal fossa and deep temporal fascia
Insertion: coronoid process and ramus of the mandible

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

What is the action of the temporalis muscle?

A

Elevates and closes mandible

Contributes to mandibular retraction

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

What is the specific innervation to the temporalis M?

A

Deep temporal branch of mandibular N (CN V3)

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

What is the origin and insertion of the medial pterygoid M?

A

Origin: medial surface of lateral pterygoid plate and maxillary tuberosity
Insertion: medial surface of mandibular ramus

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

What is the action of the medial pterygoid?

A

Whole muscle: Elevates and protrudes the mandible

Separate muscles: protrude side of mandible and produce grinding motion

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

What is the specific innervation for the medial pterygoid M?

A

Medial pterygoid N

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

What is the origin and insertion of the lateral pterygoid muscle?

A

Origin: greater wing of sphenoid and lateral surface of lateral pterygoid plate
Insertion: neck of mandible and capsule articular disc of the TMJ

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

What is the action of the lateral pterygoid?

A

Whole muscle: protrude the mandible and depress the chin

Separate muscles: side to side movement of mandible

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

What is the specific innervation to the lateral pterygoid muscle?

A

Lateral pterygoid N

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

Which muscles elevate the mandible?

A

Temporalis, masseter and medial pterygoids

17
Q

Which muscles depress the mandible?

A

Lateral pterygoids, suprahyoid and infrahyoid muscles

18
Q

Which muscles protrude the mandible?

A

Lateral pterygoids, masseter and medial pterygoids

19
Q

Which muscles participate in retrusion of the mandible?

A

Temporalis and masseter

20
Q

Which muscles contribute to lateral movement of the mandible?

A

Ipsilateral temporalis and masseter + contralateral pterygoids

NE Exam 1 (20 decks)

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