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Year 2 Medicine Leeds > Anatomy Muscles > Flashcards

Anatomy Muscles Flashcards

(107 cards)

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1
Q

Describe trapezius function and innervation

A

Upper fibres
Function - elevate scapula
Middle fibres
Function - retract scapula
Lower fibres - depress scapula
All - retract scapula during abduction of humerus past horizontal
Innervation - Accessory nerve - cranial nerve XI

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2
Q

Describe latissimus dorsi function and innervation

A

Function - adduction, medial rotation and extension of humerus
Innervation - thoracodorsal - long scapula nerve C6,7,8

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3
Q

Describe levator scapulae function and innervation

A

Function - Elevate scapula

Innervation - Branches from anterior rami of C3.4 and branches of dorsal scapular nerve C5

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4
Q

Describe rhomboid major and minor function and innervation

A

Function - Elevates and retracts scapula

Innervation - dorsal scapula nerve

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5
Q

what are the muscles of the pectoral girdle?

A

Trapezius, latissimus dorsi, rhomboid major and minor

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6
Q

Describe deltoid function and innervation

A 
Function - 
Anterior fibres - flexion 
Posterior fibres - retraction 
All - abduction 
Innervation - axillary nerve
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7
Q

Describe supraspinatus function and innervation

A

Function - abduction to 15 degrees

Innervation - supra scapular nerve

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8
Q

Describe infraspinatous function and innervation

A

Function - Lateral rotation

Innervation - Suprascapular nerve

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9
Q

Describe teres minor function and innervation

A

Function - Lateral rotation

Innervation - axillary nerve

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10
Q

Describe teres major function and innervation

A

Function - medial rotation, extension (but not hyperextension), adduction
Innervation - Lower sub scapular nerve

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11
Q

Describe subscapularis function and innervation

A

Function - medial rotation

innervation - upper and lower sub scapular nerves

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12
Q

Describe pectoralis major function and innervation

A

Function - flexion, adduction, medial rotation
Clavicular - flexion of extended arm
Sternocostal - extension of flexed arm
Innervation - medial and lateral pectoral nerves

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13
Q

Describe pectoralis minor function and innervation

A

Function - pulls tip of shoulder down, protracts scapula

Innervation - medial pectoral nerve

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14
Q

Describe serratus anterior function and innervation

A

Function - protraction of the scapula - opposed from thoracic wall
Innervation- Long thoracic nerve

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15
Q

Describe subclavius function and innervation

A

Function - pulls tip of shoulder down and protracts scapula

Innervation - subclavian nerve

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16
Q

Describe the biceps brachii function and innervation

A

Function - accessory flexor of the elbow joint, supination

Innervation - musculocutaneous nerve

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17
Q

Describe brachialis function and innervation

A

Function - primary flexor of the elbow joint

Innervation - musculocutaneous nerve

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18
Q

Describe coracobrachialis function and innervation

A

Function - Flexes arm at shoulder joint

Innervation - Musculocutaneous nerve

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19
Q

Describe triceps function and innervation

A

Function - Extension of the elbow

Innervation - Radial nerve

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20
Q

Describe brachioradialis function and innervation

A

Function - returns forearm to mid-prone position, accessory flexor
Innervation - radial nerve

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21
Q

Describe pronator teres function and innervation

A

Function - pronates and flexes the forearm at the elbow

Innervation - median nerve

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22
Q

Describe flexor carpi radials function and innervation

A

Function - flexion and abduction of the wrist

Innervation - median nerve

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23
Q

Describe Flexor carpi ulnaris function and innervation

A

Function - flexion and adduction of the wrist

Innervation - Ulnar nerve

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24
Q

Describe palmaris longus function and innervation

A

Function - flexes hand and tightens palmar aponeurosis

Innervation - median nerve

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25
Describe flexor digitorum superficialis function and innervation
Function - flexes the proximal phalanges | Innervation - median nerve
26
Describe flexor policies longus function and innervation
Function - flexes phalanges of 1st digit | Innervation - anterior interosseous nerve from median nerve
27
Describe flexor digitorum profundus function and innervation
Function - flexes distal phalanges at distal interphalangeal joints of medial 4 digits Innervation - medial part - ulnar nerve lateral part - anterior interosseous branch of median nerve
28
Describe pronator quadrates function and innervation
Function - pronates forearm, deep fibres and bind radius and ulna together Innervation - anterior interosseous nerve from median nerve
29
Describe extensor carpi radials longus function and innervation
Function - Extend and abduct hand at wrist joint | Innervation - radial nerve
30
Describe extensor carpi radials brevis function and innervation
Function - extend and abduct hand at wrist | Innervation - deep branch of radial nerve
31
Describe extensor digitorum communis function and innervation
Function - extends metacarpophalangeal interphalangeal and wrist joints Innervation - posterior interosseous nerve + continuation of the deep branch of the radial nerve
32
Describe extensor digiti minimi function and innervation
Function - extends 5th digit at metacarpophalangeal and interphalangeal joints Innervation - posterior interosseous nerve and the continuation of the deep branch of the radial nerve
33
Describe extensor carpi ulnaris fucntion and innervation
Function - extends and adducts hand at wrist | Innervation - posterior interosseous nerve and continuation of deep branch of radial nerve
34
Describe anconeus function and innervation
Function - abduction of ulna during pronation, accessory extensor of the elbow Innervation - radial nerve
35
Describe extensor indices function and innervation
Function - extends 2nd digit and helps to extend the hand | Innervation - posterior interosseous and continuation of the deep branch of radial nerve
36
Describe Extensor pollicis brevis function and innervation
Function - extends proximal phalanx of thumb at carpometacarpal joint Innervation - posterior interosseous and deep branch or radial nerve
37
Describe extensor pollicis longus function and innervation
Function - extends distal phalanx of thumb at carpometacarpal and interphalangeal joints Innervation - posterior interosseous and deep branch of radial nerve
38
Describe abductor pollicis longus function and innervation
Function - abducts thumb and extends it at carpometacarpal joint Innervation - posterior interosseous and deep branch of radial nerve
39
Describe supinator function and innervation
Function - supination | Innervation - deep branch of radial nerve
40
Describe opponens digiti minimi function and innervation
Function - draws 5th metacarpal anteriorly and rotates bringing little finger into opposition with thumb Innervation - deep branch of ulnar nerve
41
Describe abductor digiti minimi function and innervation
Function - abducts the 5th finger | Innervation - deep branch of ulnar nerve
42
Describe flexor digiti minimi brevis function and innervation
Function - flexes the proximal phalanx of the little finger | Innervation - deep branch of ulnar nerve
43
Describe opponens pollicis function and innervation
Function - draws 1st metacarpal laterally to oppose thumb toward centre of palm and rotate medially Innervation - recurrent branch of median nerve
44
Describe abductor pollicis brevis function and innervation
Function -Abducts thumb and helps oppose it | Innervation - recurrent branch of median nerve
45
Describe flexor pollicis brevis function and innervation
Function - flexes thumb | Innervation - recurrent branch of median nerve
46
Describe adductor pollicis function and innervation
Function - adduction of the thumb | Innervation - deep branch of ulnar nerve
47
Describe the lumbricals function and innervation
Function - flexing metacarpophalangeal joints, extending the interphalangeal joint Innervation - medial two lumbricals are supplied by the deep branch of ulnar nerve, lateral two lumbricals are supplied by the median nerve
48
Describe the palmar interosseous function and innervation
Function - adduction of the fingers towards the axial line and assisting the lumbricals Innervation - deep branch of ulnar nerve
49
Describe the dorsal interosseous muscles function and innervation
Function - abduction of the fingers away from the axial line Innervation - deep branch of the ulnar nerve
50
Describe gluteus Maximus function and innervation
Function - Extension of the hip, external rotation, abduction Innervation - inferior gluteal nerve
51
Describe the function and innervation of gluteus medius
Function - Abduction of the hip, internal rotation | Innervation - superior gluteal nerve
52
Describe the function and innervation of gluteus minimis
Function - Abduction of hip, internal rotation | Innervation - superior gluteal nerve
53
Describe the function and innervation of tensor fasciae lata
Function - flexion of hip/thigh, applies tension to fascia lata, stabilises extended knee Innervation - superior gluteal nerve
54
Describe the function and innervation of the piriformis
Function - laterally rotates femur, abduct flexed femur | Innervation - branched from S1-S2
55
Describe obturator internus function and innervation
Function - laterally rotate femur and abduct flexed femur | Innervation - nerve to obturator interns
56
Describe superior + inferior glemellus function and innervation
Function - laterally rotate femur, abduct flexed femur | Innervation - nerve to quadrates femoris
57
Describe the function and innervation of quadrates femoris
Function - laterally rotate femur | Innervation - nerve to quadrates femoris
58
Describe the function and innervation of psoas major
Function - flex the thigh at the hip joint | Innervation - anterior rami of L1, L2, L3
59
Describe the function and innervation of illiacus
Function - flex the thigh at the hip joint | Innervation - femoral nerve
60
Describe the function and innervation of pectineus
Function - flex the thigh at hip joint, abduct the thigh at the hip joint Innervation - femoral nerve
61
Describe the function and innervation of sartorious
Function - flex the thigh at the hip joint, flex the leg at the knee joint Innervation - Femoral nerve
62
Describe the function and innervation of the rectus femoris
Function - flex the thigh at the hip joint, extend the leg at the knee Innervation - femoral nerve
63
Describe the function and innervation of vastus medalis, lateralis and intermedius
Function - extend the leg at the knee joint | Innervation - Femoral nerve
64
Describe the function and innervation of gracilis
Function - abduct thigh at hip joint and flex leg at knee joint Innervation - obturator nerve
65
Describe the function and innervation of adductor brevis and longus
Function - adduct and medially rotate thigh at hip joint | Innervation - obturator nerve
66
Describe the function and innervation of adductor magnus adductor part
Function - adduction and flexion of thigh at hip joint | Innervation - obturator nerve
67
Describe the function and innervation of adductor magnus hamstring part
Function - adduction and extension of thigh at hip joint | Innervation - tibial nerve
68
Describe the function and innervation of obturator externus
Function - laterally rotate thigh at hip joint | Innervation - obturator nerve
69
Describe the function and innervation of biceps femoris short head
Function - flexion of knee, laterally rotate leg | Innervation - common fibular nerve
70
Describe the function and innervation of biceps femoris long head
Function - flexion of knee, laterally rotate leg and extension of hip Innervation - tibial nerve
71
Describe the function and innervation of semitendinous and semimembranous
Function - flexion of knee and extension of the hip | Innervation - tibial nerve
72
Describe the function and innervation of gastrocnemius medial and lateral heads
Function - plantar flexion of foot and flexion of knee | Innervation - tibial nerve
73
Describe the function and innervation of plantaris
Function - plantar flexion of foot, flexion of knee | Innervation - tibial nerve
74
Describe the function and innervation of soleus
Function - plantar flexion of foot | Innervation - Tibial nerve
75
Describe the function and innervation of popliteus
Function - stabilise the knee, unlock the knee to enable flexion via lateral rotation of femur Innervation - tibial nerve
76
Describe the function and innervation of flexor digitorum longus
Function - flex lateral 4 toes | Innervation - tibial nerve
77
Describe the function and innervation of hallucis longus
Function - flex the great toe | Innervation - tibial nerve
78
Describe the function and innervation of tibialis posterior
Function - plantar flexion of foot, inversion of foot | Innervation - tibial nerve
79
Describe the function and innervation of fibularis longus
Function - plantar flexion of foot, eversion of foot | Innervation - superficial fibular nerve
80
Describe the function and innervation of fibularis brevis
Function - eversion of foot | Innervation - superficial fibular nerve
81
Describe the function and innervation of extensor digitorum brevis
Function - extension of lateral four toes | Innervation - innervation of deep fibular nerve
82
Describe the function and innervation of extensor hallucis brevis
Function - extension of the great toe | Innervation - deep fibular nerve
83
Describe the function and innervation of abductor digitiminimum
Function - abduction of the 5th toe | Innervation - lateral plantar nerve - branch of tibial
84
Describe the function and innervation of abductor hallusis
Function - flexion of great toe and abduction of great toe | Innervation - medial plantar nerve - branch of tibial
85
Describe the function and innervation of flexor digitorum brevis
Function - flexion of lateral 4 toes | Innervation - medial plantar nerve - branch of tibial
86
Describe the function and innervation of quadratus plantae
Function - flexion of lateral 4 toes | Innervation - lateral plantar nerve - branch of tibial
87
Describe the function and innervation of the lumbricals
Function - flexion of metatarsophalangeal joint, extension of interphalangeal joint Innervation - first lumbrical - medial plantar nerve lateral three - lateral plantar nerves
88
Describe the function and innervation of flexor hallucis brevis
Function - flex great toe | Innervation - medial plantar nerve
89
Describe the function and innervation of adductor hallucis
Function - adduct great toe | Innervation - lateral plantar nerve
90
Describe the function and innervation of flexor digiti minimi brevis (Foot)
Function - flex and adduct 5th toe | Innervation - lateral plantar nerve
91
Describe the function and innervation of the dorsal interossei
Function - abduct toes | Innervation - lateral plantar nerve, first and second also innervated by deep fibular nerve
92
Describe the function and innervation of the plantar interossei
Function - adduct toes | Innervation - lateral plantar nerves
93
Describe the function and innervation of tibialis anterior
Function - dorsiflexion and inversion of foot | Innervation - Deep fibular nerve
94
Describe the function and innervation of extensor digitorum Longus
Function - dorsiflexion and extension of lateral 4 toes | Innervation - Deep fibular nerve
95
Describe the function and innervation of extensor hallucis longus
Function - dorsiflexion of foot and extension of great toe | Innervation - deep fibular nerve
96
Describe the function and innervation of fibular tertius
Function - dorsiflexion and eversion of foot | Innervation - deep fibular nerve
97
What are the boundaries of the quadrilateral space and what runs through it?
``` Superior - teres minor Medial - long head of triceps Inferior - teres major Laterally - surgical neck of humerus Runs through - axillary nerve and posterior humeral circumflex artery ```
98
What are the boundaries and the content of the axilla?
Apex - 1st rib Medial - serrates anterior Lateral - Intertubercular sulcus of humerus Anterior - Pectoralis minor and major Posterior - Subscapularis, latissimus dorsi and teres major Contents: Coracobrachialis, biceps, pectoralis minor, axillary artery and vein, brachial plexus
99
What are the boundaries and contents of the anatomical snuffbox?
Medial - extensor pollicis longus Lateral - extensor pollicis brevis + abductor pollicis longus Proximal - styloid process of the radius Floor - scaphoid + trapezium Roof - skin Contents - radial artery, cephalic vein and radial nerve
100
What are the contents of the carpal tunnel?
- Flexor pollicis longus tendon - Flexor digitorum superficial 4 tendons - Flexor digitorum profundus 4 tendons - Median nerve
101
What are the borders and contents of the femoral triangle?
Roof - fascia lata Floor - pectineus, iliopsoas, adductor longus Superior - inguinal ligament Lateral - sartorius Medial - adductor longus Contents - femoral nerve, femoral artery + vein and canal
102
What are the borders of the femoral canal?
Medial - lacunar ligament Lateral - femoral vein Anterior - inguinal ligament Posterior - pectineal ligament, superior ramus of pubis and pectineus
103
What are the borders and contents of the adductor canal, where does it travel?
Antermedial - sartorius Lateral - vastus medialis Posterior - adductor longus + Magnus Contents - femoral vein, artery and nerve Runs from apex of the femoral triangle to adductor hiatus
104
What are the borders and content of the popliteal fossa?
Superomedial - semimembranous Superolateral - biceps femoris Inferomedial - medial head of the gastrocnemius Inferolateral - lateral head of gastrocnemius and planters
105
What are the contents from anterior to posterior of the tarsal tunnel?
``` Tibialis posterior tendon Flexor digitorum longus Tibial artery Vein Nerve Flexor hallucis longus tendon Tom, dick and very nervous harry ```
106
What are the borders of the safety triangle?
Anterior - Pectoralis Major Posterior - Latisimus dorsi Inferior - 5th intercostal space - nipple
107
What are the borders of the anterior and posterior neck triangles?
``` Anterior Triangle S - Inferior mandible L - anterior sternocleidomastoid M - saggital line down midline of neck Contents - bifurcation of common carotid, internal jugular ``` ``` Posterior Triangle A - posterior sternocleidomastoid P - trapezius In - middle 1/3 clavicle Contents - external jugular vein, subclavian vein, accessory nerve + cervical plexus ```

Year 2 Medicine Leeds (4 decks)

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