Quiz 6 (Posterior muscles) Flashcards
1
Q
splenius capitis: N
A
cervical spinal nerve
2
Q
Erector spinae: A
A
Prime mover of back extension
3
Q
Trapezius: O
A
occipital bone, ligamentum nuchae, and spinous process of C7-T12
4
Q
Trapezius: I
A
Spine and acromion of scapula, lateral 1/3 of clavicle
5
Q
Trapezius: A
A
stabilizes, elevates, retracts, depresses and/or rotates scapula
6
Q
Trapezius: N
A
accessory never (CN XI) spinal nerves C3-C4
7
Q
Levator scapulae: O
A
transverse processes of C1-C4
8
Q
Levator scapulae: I
A
superior vertebral border of scapula
9
Q
Levator scapulae: N
A
spinal nerves C3-C5
10
Q
Rhomboideus major: O
A
Spinous process of T2-T5
11
Q
Rhomboideus major: I
A
Medial boarder of scapula from spine to inferior angle
12
Q
Rhomboideus major: A
A
Adducts scapula and performs downward rotation of scapula
13
Q
Rhomboideus major: N
A
Spinal nerve C5 (via dorsal scapular nerve)
14
Q
Rhomboideus minor: O
A
Spinous process of C7-T1
15
Q
Rhomboideus minor: I
A
Medial border of scapula, superior to rhomboideus major
16
Q
Rhomboideus minor: A
A
adducts scapula and performs downwards rotation of scapula
17
Q
Rhomboideus minor: N
A
Spinal nerve C5 (via dorsal scapular nerve)
18
Q
Teres major: O
A
inferior angle of scapula
19
Q
Teres major: I
A
intertubercular groove of humerus
20
Q
Teres major: A
A
extension, medial rotation, and adduction of arm
21
Q
Teres major: N
A
subscapular nerve
22
Q
Latissimus dorsi: O
A
Spines of T7-L5
ribs 8-12
iliac crest
thoracolumbar fascia
23
Q
Latissimus dorsi: I
A
intertubercular groove of humerus
24
Q
Latissimus dorsi: A
A
prime arm extensor: adduction and medial rotation at the shoulder: depresses shoulder
25
Latissimus dorsi: N
Thoracodorsal nerve (C6-C8)
26
Muscles of the rotator cuff
supraspinatus
infraspinatus
subscapularis
teres minor
27
Supraspinatus: O
Supraspinous fossa of scapula
28
Supraspinatus: I
greater tubercle of humerus
29
Supraspinatus: A
stabilizes shoulder joint: abducts arm
30
Supraspinatus: N
Suprascapular nerve
31
Infraspinatus: O
infraspinous fossa of scapula
32
Infraspinatus: I
greater tubercle of humerus
33
Infraspinatus: A
stabilizes shoulder joint, laterally rotates arm
34
Infraspinatus: N
suprascapular nerve
35
Subscapularis: O
subscapular fossa of scapula
36
Subscapularis: I
lesser tubercle of humerus
37
Subscapularis: A
prime medial rotator of arm, stabilizes shoulder joint
38
Subscapularis: N
subscapular nerve
39
Teres minor: O
Lateral scapular border
40
Teres minor: I
greater tubercle of humerus
41
Teres minor: A
stabilizes shoulder joint, laterally rotates arm
42
Teres minor: N
axillary nerve
43
Triceps brachii: O (all three heads)
Long head: infraglenoid tubercle of scapula
Lateral head: proximal end of lateral humeral margin
Medial head: distal to radial groove on posterior humeral shaft
44
Triceps brachii: I
olecranon process of ulna
45
Triceps brachii: A
prime extensor of forearm: extends arm
46
Triceps brachii: N
radial nerve
47
Anconeus: O
lateral epicondyle of humerus
48
Anconeus: I
lateral aspect of olecranon process of ulna
49
Anconeus: A
abduction of ulna during forearm pronation, forearm extensor
50
Anconeus: N
radial nerve
51
Flexor carpi radialis: N
median nerve
52
palmaris longus: N
Median nerve
53
How many people have unilateral absence of the palmaris longus
15%
54
how many people have bilateral absence of the palmaris longus
9%
55
flexor carpi ulnaris: N
ulnar nerve
56
flexor pullicis longus: N
median nerve
57
flexor digitorum superficialis: N
median nerve
58
flexor digitorum profundus: N
Medial half-ulnar nerve
| lateral half-median nerve
59
flexor wrist band
flexor retinaculum
60
Gluteus maximus: O
dorsal ilium, sacrum coccyx, and lumbodorsal fasica
61
Gluteus maximus: I
gluteal tuberosity of femur and iliotibial tract
62
Gluteus maximus:A
Major thigh extensor
| lateral rotation of thigh
63
Gluteus maximus: N
Inferior gluteal nerve
64
Gluteus medius: O
Anterior iliac crest of ilium between posterior and anterior gluteal lines
65
Gluteus medius: I
greater trochanter of femur
66
Gluteus medius: A
abduction and medial rotaion of thigh
| steadies pelvis
67
Gluteus medius: N
superior gluteal nerve
68
Gluteus minimus: O
lateral surface of ilium between inferior and anterior gluteal lines
69
Gluteus minimus: I
greater trochanter of the femur
70
Gluteus minimus: A
abduction and medial rotation of thigh
| steadies pelvis
71
Gluteus minimus: N
Superior gluteal nerve
72
Note the emergence of the sciatic nerve
between the piriformis and superior gemellus
73
Piriformis: O
anterolateral surface of sacrum
74
Piriformis: I
greater trochanter of femur
75
Piriformis: A
Abduction (when thigh flexed) and lateral rotation of thigh
76
Piriformis: N
Spinal nerves L5-S2
77
Superior gemellus: O
ischial spine
78
Superior gemellus: I
medial surface of greater trochanter of the femur
79
Superior gemellus: A
lateral rotation of thigh
| abduction (when thigh flexed)
80
Superior gemellus: N
Spinal nerves L5-S1
81
Obturator internus: O
obturator membrane, and obturator foramen
82
Obturator internus: I
greater trochanter of femur
83
Obturator internus: A
lateral rotation of thigh
84
Obturator internus: N
Spinal nerves L5-S1
85
Inferior gemellus: O
ischial tuberosity
86
Inferior gemellus: I
medial surface of greater trochanter of femur
87
Inferior gemellus: A
lateral rotation of thigh
| abduction of thigh (when flexed)
88
Quadratus femoris: O
ischial tuberosity
89
Quadratus femoris: I
intertrochanteric crest of femur
90
Quadratus femoris: A
lateral rotation of thigh
91
Quadratus femoris: N
Spinal nerves L5-S1
92
Muscles of the hamstrings
biceps femoris X 2
semitendenosus
semimembranosus
93
Biceps femoris: O (both heads)
Long head: ischial tuberosity
| Short head: linea aspera and distal femur
94
Biceps femoris: I
head of fibula and lateral condyle of tibia
95
Biceps femoris: A
Extension of thigh
| flexion and lateral rotation of leg
96
Biceps femoris: N
Sciatic nerve
97
Semitendinosus: O
ischial tuberosity
98
Semitendinosus: I
medial aspect of proximal tibial shaft
99
Semitendinosus: A
extension of thigh
| flexion and medial rotation of leg
100
Semitendinosus: N
sciatic nerve
101
Semimembranosus: O
ischial tuberosity
102
Semimembranosus: I
medial condyle of the tibia
103
Semimembranosus: A
extension of thigh
| flexion and medial rotation of leg
104
Semimembranosus: N
Sciatic nerve
105
Muscles of the triceps surae
grastrocnemius (both heads)
| soleus
106
Grastrocnemius: N (both heads)
Lateral head: Tibial nerve
| Medial head: Tibial nerve
107
Soleus: N
Tibial nerve
108
Plantaris: N
Tibial nerve
109
Popliteus: N
Tibial nerve
110
Flexor digitorum longus: N
Tibial nerve
111
Tibialis posterior: N
Tibial nerve
112
Flexor hallucis longus: N
Tibial nerve
113
dense fascia on posterior aspect of ankle
flexor retinaculum
114
Calcaneal tendon
Large tendon on the back of the heel
115
Rotator cuff (3)
circle of tendons around glenohumeral joint
purpose to strengthen glenohumeral joint (support)
composed of 4 different muscles
116
Thickest nerve in the body
sciatic nerve
117
Two nerves that make up the sciatic nerve
tibial nerve
| common peroneal nerve
