Practical 1 Flashcards
1
Q
Muscles in superior extrinsic shoulder
A
Trapezius
Latissimus dorsi
2
Q
Trapezius origin
A
Base of skull
nuchal ligament
C7-T12
3
Q
Trapezius insertion
A
lateral third of clavicle
acromion
spine of scapula
4
Q
Trapezius action
A
elevate, depress, retract scapula
rotate glenoid cavity superiorly
5
Q
Trapezius innervation
A
spinal accessory nerve
6
Q
lat. dorsi origin
A
Spinous process of lower 6 thoracic vertebrae
iliac crest
Thoracolumbar fasica
7
Q
lat dorsi insertion
A
the floor of the intertubercular groove
8
Q
Lat dorsi action
A
medial rotation of humerus
Extend and adduct humerus
pull trunk to upper limbs for when climbing
9
Q
lat. dorsi innervation
A
thoracodorsal nerve
10
Q
Muscles of deep posterior extrinsic shoulder
A
Levator scapulae
Rhomboid major
Rhomboid minor
11
Q
Origin levator scapulae
A
transverse process C1 - C4
12
Q
insertion levator scapulae
A
medial border of scapula - above spine level
13
Q
action levator scapulae
A
elevate scapula
rotate glenoid cavity inferiorly
14
Q
Innervation levator scapulae
A
dorsal scapular nerve
15
Q
Origin Rhomboid minor
A
spinous process C7 and T1
16
Q
Insertion rhomboid minor
A
medial border of scapula at level of spine
17
Q
Action rhomboid minor
A
retract scapula
rotate glenoid cavity inferiorly
18
Q
Innervation rhomboid minor
A
Dorsal scapular nerve
19
Q
Rhomboid major origin
A
spinous process T2- T5
20
Q
Rule of deep posterior extrinsic muscles
A
4,2,2,4 rule
21
Q
Insertion rhomboid major
A
medial border of scapula, level below spine
22
Q
Innervation rhomboid major
A
dorsal scapular nerve
23
Q
action rhomboid major
A
Retract scapula
rotate glenoid cavity inferiorly
24
Q
Muscles of intrinsic shoulder
A
Deltoid
Teres major
25
Origin deltoid
lateral third of clavicle
acromion
Spine of scapula
26
Deltoid insertion
deltoid tuberosity
27
deltoid action
extend and flex humerus
medial and lateral rotation of humerus
abduct humerus
28
Deltoid innervation
axillary nerve
29
Teres major origin
posterior surface of scapula
30
Teres major insertion
intertubercular groove - medial lip
31
Teres major action
medial rotation of humerus
Adduct humerus
32
Teres major innervation
lower scapular nerve
33
Muscles in rotator cuff
Subscapularis
supraspinatus
infraspinatus
teres minor
34
subscapulris origin
subscapular fossa
35
subscapularis insertion
lesser tubercle of humerus
36
subscapularis action
medial rotation of humerus
stabilize shoulder
37
innervation subscapularis
upper subscapular nerve
lower subscapular nerve
38
supraspinatus origin
supraspinatus fossa
39
supraspinatus insertion
greater tubercle of humerous - superior facet
40
action supraspinatus
adduct humerus
stabilize shoulder
41
supraspinatus innervation
suprascapular nerve
42
origin infraspinatus
infraspinous fossa
43
Infraspinatus insertion
Greater tubercle - middle facet
44
Action infraspinatus
Lateral rotation of humerus
Stabilize shoulder
45
Infraspinatus innervation
Suprascapular nerve
46
Teres minor origin
Lateral border of scapula -superior portion
47
Teres minor insertion
Greater tubercle of humerus - inferior facet
48
Action teres minor
Lateral rotation of humerus
Stabilize shoulder
49
Teres minor innervation
Axillary nerve
50
Anterior thoracoappendicular muscles
Pectoralis major
Pectoralis minor
Subclavius
Serratus anterior
51
52
Pec major origin
Medial half of clavicle
Sternum
52
Pec major insertion
Lateral lip of intertubercular groove
52
Pec major action
Adducts and medical rotation of humerus
52
Pec minor origin
Ribs 3 - 5
53
Pec major innervation
Lateral and medial pectoral nerves
53
Pec minor insertion
Coracoid process
54
Pec minor action
Stabilize scapula
55
Pec minor innervation
Lateral and medial Pectoral nerves
56
Subclavius origin
Junction of rib 1 and its costal cartilage
57
Subclavius insertion
Middle third of clavicle
Inferior surface
58
Subclavius innervation
Nerve to Subclavius
59
Subclavius action
Stabilize/anchor clavicle
Depress clavicle
60
Serratus anterior Origin
Ribs 1 -8 lateral surface
61
Serratus anterior insertion
anterior suface of scapula - medial border
62
Serratus anterior innervation
long thoracic nerve
63
serratus anterior action
protract and rotate scapula
holds scapila against thorax
64
Intermediate extrinsic back muscles
Serratus posterior superior
Serratus posterior inferior
65
Serratus posterior superior origin
spinous processes: C7 - T2
66
Serratus posterior superior insertion
upper ribs
67
Serratus posterior superior innevation
anterior rami
68
Serratus posterior superior action
respiration?
proprioceptive function?
69
Serratus posterior inferior origin
spinous processes T11 - L3
70
Serratus posterior inferior insertion
lower ribs
71
Serratus posterior innervation
Anterior rami
71
Serratus posterior inferior action
respiration?
proprioceptive function?
72
Superfical intrinsic back muscles
Splenius (Capitis and cervicis)
73
Splenius origin
Nuchal ligament
spinous processes C7-T6
74
Splenius insertion
capitis - mastoid process, superior nuchal line
cervicis - transverse processes ~C1 - C4
75
Splenius innervation
posterior rami
76
splenius action
lateral flexion of neck
rotation of head
Extension of head and neck
77
Intermediate intrinsic back muscles
Erector spinae
- Iliocostalis
- longisssimus
- Spinalis
78
Origin of erector spinae
common insertion for each muscle
- sacrum
- iliac crest
- spinous processes T11 - L5
78
longissimus insertion
Ribs
Transverse processes of cervical and thoracic
79
Iliocostalis insertion
angles of lower ribs
80
Spinalis insertion
Spinous processes - cervical and thoracic
81
innervation of erector spinae
posterior rami
82
action of erector spinae
extend, laterally flex and stabilize vertebral column
83
Deep intrinsic back muscles
Transversospinalis group
- semispinalis
- multifidus
- Rotatores
84
Origin of Tranversospinalis
Transverse processes of all vertebrae
85
Semispinalis insertion
spinous processes - cervical and thoracic
(4-6 segments)
86
Multifitus insertion
Spinous processes - all vertebrae
( 2 - 4 segments)
87
insertion rotatores
spinous processes - all vertebrae
( 1 -2 segments)
88
Transversospinalis action
Extend, laterally flex/rotate and stabilize vertebral column
89
innervation of transversospinalis group
posterior rami
89
Deepest intrinsic back muscles
Segmental group
- Interspinalis
- intertransversarii
- levator costarum
90
interspinales origin
Spinous processes of vertebrae
91
Intertransversarii origin
transverse processes of vertebrae
92
Levator costarum origin
transverse processes of thoracic vertebrae
92
Inerspinales insertion
spinous process of vertebrae above origin
93
intertransversarii insertion
transverse spinous process above origin
94
segmental group innervation
posterior rami
intertransversarii - also anterior rami
95
Levator costarum insertion
Ribs between tubercle and angle
96
segmental group origin
extend, lateral flexion, stabilize vertebral column
Levator costarum : elevates ribs for breathing and lateral flextion of vertebral column
97
Anterior compartment of arm muscles
Coracobrachialis
Biceps brachii
Brachialis
98
Coracobrachialis origin
coracoid process
99
Coracobrachialis insertion
Humerus - medial third, medial surface
100
Coracobrachialis innervation
musculocutaneous nerve
101
Coracobrachialis action
shoulder flextion and adduction
101
Biceps brachii origin
Short head - coracoid process
long head - supraglenoid tubercle of scapula
102
Biceps brachii innervation
musculocutaneous nerve
103
Biceps brachii insertion
radial tuberosity
104
Brachialis origin
distal half, anterior surface of humerus
104
Biceps brachii action
Forearm supination
Elbow flextion
104
Brachialis insertion
coronoid process of ulna - ulnar tuberosity
105
Brachialis innervation
musculocutaneous nerve
106
Brachialis action
elbow flexion
107
Posterior compartment of arm muscle
Triceps brachii
108
Triceps brachii origin
Long head: infraglenoid tubercle of scap
Lateral head: posterior surface if humerus, superior to radial groove
medial head: posterior surface of humerus, inferior to radial groove
109
Triceps brachii insertion
olecranon of ulna
110
Triceps brachii innervation
radial nerve
111
Triceps brachii action
elbow extension
