Lab Exam 2: Origins/Insertions Flashcards
1
Q
Ligament attachment of hyoid bone
A
- Stylohyoid ligamnet
- Thyrohyoid membrane
2
Q
Platysma Innervation
A
- Facial nerve (CN VII)
3
Q
Platysma Function
A
- Depress mandible
- Facial expression
4
Q
Platysma Attachment
A
- Deep fascia upper chest
- Mandible
5
Q
Sternocleidomastoid (SCM) Origins
A
- Sternal: manubrium
- Clavicular: medial 1/3 of clavicle
6
Q
SCM Insertion
A
- Mastoid process
- Superior nuchal line
7
Q
SCM Innervation
A
- Spinal accessory nerve (CN XI)
8
Q
Posterior Triangle Boundaries
A
- A: posterior border of SCM
- P: anterior border of trapezius
- I: middle 1/3 of clavicle
- S: Jxn of trap and SCM
- R: overlying fascia
- F: scalenes, splenius capitis, levator scapulae
9
Q
Anterior Triangle Boundaries
A
- A: midline of neck
- P: anterior border of SCM
- I: jugular notch
- S: inferior border of mandible
- R: overlying fascia
- F: pharynx, larynx, thyroid gland
10
Q
Tributaries of EJV
A
- Anterior jugular
- Cervicodorsal
- Suprascapular veins
11
Q
Cervical Plexus Location
A
- Posterior border of SCM while it’s laid flat
12
Q
Anterior Cervical Muscles Funtcion
A
- Stabilize/move hyoid bone and larynx
13
Q
Suprahyoid Muscles
A
- Connect the hyoid bone and cranium
- Elevate the hyoid (swallowing)
14
Q
Mylohyoid Attachments
A
- Mylohyoid line
- Body of hyoid
15
Q
Mylohyoid Innervation
A
- Nerve to mylohyoid (CN V, mandibular division of trigeminal)
16
Q
Mylohyoid Function
A
- Elevate hyoid
- Elevate floor of mouth
17
Q
Geniohyoid Attachments
A
- Inferior mental spine of mandible
- Body of hyoid
18
Q
Geniohyoid Innervation
A
- C1 fibers traveling with hypoglossal nerve
19
Q
Geniohyoid Function
A
- Pulls hyoid anterosuperiorly
20
Q
Stylohyoid Attachments
A
- Styloid process of temporal bone
- Body of hyoid
21
Q
Stylohyoid Innervation
A
- Facial nerve (CN VII)
22
Q
Stylohyoid Function
A
- Elevates and retracts hyoid
23
Q
Anterior Belly of Digastric Attachments
A
- Digastric fossa
- Hyoid bone
24
Q
Anterior Belly of Digastric Innervation
A
- Nerve to myohyloid (CN V, mandibular division of trigeminal)
25
Posterior Belly of Digastric Attachments
- Mastoid notch of temporal bone
- Hyoid body
- Greater horn of hyoid
26
Posterior Belly of Digastric Innervation
- Facial nerve (CN VII)
27
Digastric Muscles Function
- Depress mandible
- Elevate hyoid
- Joined by intermediate tendon
28
Infrahyoid Muscles (TOSS)
- Thylohyoid
- Omohyoid
- Sternohyoid
- Sternothyroid
29
Infrahyoid Muscles Innervation (all except thyrohyoid)
- Ansa cervicalis
30
Infrahyoid Muscles Function
- Depress the hyoid and larynx
31
Sternohyoid Attachments
- Manubrium/medial end of clavicle
| - Hyoid body
32
Omohyoid Attachments
- Superior border of scapula
- Hyoid body
- 2 bellies connected by an intermediate tendon
33
Sternothyroid Attachments
- Manubrium
| - Oblique line of thyroid cartilage
34
Thyrohyoid Attachments
- Oblique line of thyroid cartilage
- Inferior border of hyoid
- Greater horn of hyoid
35
Thyrohyoid Innervation
- C1 branches traveling with hypoglossal nerve
36
Submental Triangle Boundaries
- I: body of hyoid
- L: anterior bellies of digastric muscle
- Apex: mandibular symphysis
- Floor: mylohyoid muscles
37
Submandibular Triangle Boundaries
- S: inferior border of mandible
- A: anterior belly of digastric
- P: posterior belly of digastric
- F: mylohyoid, hypoglossus
38
Muscular Triangle Boundaries
- P/I: anterior border of SCM
- P/S: superior belly of omohyoid
- M: midline of neck (hyoid bone to jugular notch)
39
Carotid Triangle Boundaries
- I/M: superior belly of omohyoid
- S: posterior belly of digastric
- P: anterior border of SCM
40
Tributaries of IJV
- Sigmoid sinus
- Inferior potrosal sinus
- Common facial vein
- Superior and middle thyroid vein
41
Hyoid Bone Vertebral Level
- C3
42
Thyroid Cartilage Vertebral Level
- C4-6
43
Cricoid Cartilage Vertebral Level
- C6
44
Thyroid Gland Vertebral Level
- C5-T1
45
Anterior Scalene Attachments
- TP of C3-6
| - 1st rib, anterior to subclavian artery groove
46
Middle Scalene Atachments
- TP of C2-7
| - 1st rib, posterior to subclavian groove
47
Posterior Scalene Attachments
- TP of C4-6
| - 2nd rib
48
Scalenus Minimus Attachments
- TP of C7
| - 1st rib or suprapleural membrane
49
Pectoralis Major Proximal Attachment
- Medial 1/3 of clavicle
- Anterior sternum
- Upper 6 costal cartilages
- Aponeurosis of external oblique
50
Pectoralis Major Distal Attachment
- Lateral lip of intertubervular sulcus
51
Pectoralis Major Innervation
- Lateral pectoral nerve (C5-7)
| - Medial pectoral nerve (C8-T1)
52
Pectoralis Major Function
- Adduction
- Medial rotation
- Flexion
53
Pectoralis Minor Proximal Attachment
- Ribs 3-5
54
Pectoralis Minor Distal Attachment
- Coracoid process
55
Pectoralis Minor Innervation
- Medial pectoral nerve (C8-T1)
56
Pectoralis Minor Function
- Stabilize scapula
- Pulls against thoracic wall
- Accessory muscle of innervation
57
Subclavius Proximal Attachment
- 1st rib/costal cartilage junction
58
Subclavius Distal Attachment
- Inferior and middle 1/3 of clavicle
59
Subclavius Innervation
- Nerve to subclavius (C5)
60
Subclavius Function
- Stabilize SC joint
| - Depress clavicle
61
Levator Scapulae Proximal Attachment
- Posterior tubercles of C1-4 TPs
62
Levator Scapulae Distal Attachment
- Medial border of scapula (above scapular spine base)
63
Levator Scapulae Innervation
- Dorsal scapular nerve (C4,5) motor
| - C3,4 proprioception
64
Levator Scapulae Funtcion
- Elevates and rotates scapula
| - Glenoid fossa rotates inferiorly
65
Rhomboid Minor Proximal Attachment
- Nuchal ligament
| - C7 and T1 SPs
66
Rhomboid Major Proximal Attachment
- T2-5 SPs
67
Rhomboid Minor Distal Attachment
- Base of scapular spine
68
Rhomboid Major Distal Attachment
- Spine to inferior angle of scapula
69
Rhomboids Innervation
- Dorsal scapular nerve (C4,5)
| - C3,4 proprioception
70
Rhomboids Function
- Retract and rotate scapula
| - Fix scapula against thoracic wall
