Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Anatomy > Anterior Triangle of the Neck > Flashcards

Anterior Triangle of the Neck Flashcards

1
Q

What are the muscles of the Anterior Triangle of the Neck?

A

Digastric, Mylohyoid, Hyoglossal, Sternothyroid, Omohyoid, Sternohyoid, Thyrohyoid, Stylohyoid, Geniohyoid

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

What is the origin of the Digastric muscle?

A

posterior belly: mastoid process

anterior belly: digastric fossa, internal mandible

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

What is the insertion of the Digastric muscle?

A

lateral aspect of body of hyoid

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

What is the nerve supply of the Digastric muscle?

A

posterior belly: CN VII

anterior bell: Mylohyoid nerve (s) mandibular nerve (m)

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

What is the blood supply of the Digastric muscle?

A

anterior belly: submental artery

posterior belly: occipital artery

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

What is the action of the Digastric muscle?

A

open mouth by depressing mandible, fixes hyoid bone

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

What is noteworthy about the Digastric muscle?

A

derivative of second pharyngeal arch

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

What is the origin of the Mylohyoid muscle?

A

inner surface of mandible

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

What is the insertion of the Mylohyoid muscle?

A

body of hyoid

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

What is the nerve supply of the Mylohyoid muscle?

A

sensory: mylohyoid nerve
motor: mandibular nerve (CN V)

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

What is the blood supply of the Mylohyoid muscle?

A

mylohyoid branch of inferior alveolar artery

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

What is the action of the Mylohyoid muscle?

A

elevates hyoid bone, raises floor of mouth, depresses mandible when hyoid is fixed

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

What is noteworthy about the Mylohyoid muscle?

A

derivative of second pharyngeal arch

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

What is the origin of the Hyoglossal muscle?

A

upper border of the greater horn of they hyoid and body of the hyoid bone

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

What is the insertion of the Hyoglossal muscle?

A

spreads out into the intrinsic muscles of the tongue

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

What is the nerve supply of the Hyoglossal muscle?

A

CN XII (hypoglossal nerve)

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

What is the blood supply of the Hyoglossal muscle?

A

lingual artery

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

What is the action of the Hyoglossal muscle?

A

depresses the sides of the tongue, retracts the tongue

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

What is noteworthy about the Hyoglossal muscle?

A

extrinsic muscle of the tongue

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

What is the origin of the Sternothyroid muscle?

A

posterior manubrium

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

what is the insertion of the Sternothyroid muscle?

A

thyroid cartilage

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

What is the nerve supply of the Sternothyroid muscle?

A

C2 and C3 by a branch of ansa cervicalis

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

What is the blood supply of the Sternothyroid muscle?

A

superior thyroid artery

24
Q

What is the action of the Sternothyroid muscle?

A

depresses hyoid and larynx

25
What is the origin of the Omohyoid muscle?
superior belly: hyoid bone | inferior belly: superior scapular border
26
What is the insertion of the Omohyoid muscle?
superior belly: hyoid bone | inferior belly: clavicle via intermediate tendon
27
What is the nerve supply of the Omohyoid muscle?
C1-C3 by a branch of ansa cervicalis
28
What is the blood supply of the Omohyoid muscle?
transverse cervical artery
29
What is the action of the Omohyoid muscle?
depresses hyoid and larynx
30
What is noteworthy about the Omohyoid muscle?
intermediate tendon is tethered to the clavicle by a fascial sling
31
What is the origin of the Sternohyoid muscle?
sternum
32
What is the insertion of the Sternohyoid muscle?
body of hyoid
33
What is the nerve supply of the Sternohyoid muscle?
C1-C3 by a branch of ansa cervicalis
34
What is the blood supply of the Sternohyoid muscle?
superior thyroid artery
35
What is the action of the Sternohyoid muscle?
depresses hyoid and larynx
36
What is the origin of the Thyrohyoid muscle?
thyroid cartilage
37
What is the insertion of the Thyrohyoid muscle?
body of hyoid
38
What is the nerve supply of the Thyrohyoid muscle?
ansa cervicalis (C1)
39
What is the blood supply of the Thyrohyoid muscle?
superior thyroid artery
40
What is the action of the Thyrohyoid muscle?
depresses hyoid
41
What is noteworthy about the Thyrohyoid muscle?
lies deep to Sternohyoid
42
What is the origin of the Stylohyoid muscle?
styloid process
43
What is the insertion of the Stylohyoid muscle?
lateral margin of the hyoid
44
What is the nerve supply of the Stylohyoid muscle?
stylohyoid branch of CN VII (facial nerve)
45
What is the blood supply of the Stylohyoid muscle?
ascending pharyngeal artery
46
What is the action of the Stylohyoid muscle?
pulls hyoid superiorly and posteriorly during swallowing
47
What is the origin of the Geniohyoid muscle?
inner surface of the mandible
48
What is the insertion of the Geniohyoid muscle?
body of hyoid
49
What is the nerve supply of the Geniohyoid muscle?
ansa cervicalis (C1) via hypoglossal nerve (CN XII)
50
What is the blood supply of the Geniohyoid muscle?
lingual and submental arteries
51
What is the action of the Geniohyoid muscle?
elevates tongue, depresses mandible, works with mylohyoid
52
What are the boundaries of the Anterior Cervical Triangle?
anterior midline of neck, inferior border of mandible, anterior border of SCM. Can be divided into four small triangles.
53
What are the boundaries of the Submandibular Triangle?
mandible, posterior and anterior bellies of digastric muscle. Contains the submandibular gland, ganglion, lymph nodes, CN XII, and facial vein and artery
54
What are the boundaries of the Submental Triangle?
hyoid bone, anterior bellies of digastric muscle. Contains the beginning of the anterior jugular veins and lymph nodes.
55
What are the boundaries of the Carotid Triangle?
superior belly of omohyoid muscle, posterior belly of digastric muscle, anterior border of SCM. Contains the carotid sheath (CN X, carotid arteries, internal jugular vein)
56
What are the boundaries of the Muscular Triangle?
anterior midline of neck, superior belly of omohyoid muscle, anterior border of SCM muscle. Contains thyroid and Parathyroid glands as well as the infrahyoid muscles.

Anatomy (17 decks)

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