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Structure And Function > Grouped Muscle Actions > Flashcards

Grouped Muscle Actions Flashcards

1
Q

Intrinsic back muscles

A 
Splenius capitis
Splenius cervicis
Semispinalis capitis
Erector spinae- bilaterally extend spine or flex unilaterally
*Innervated by Dorsal rami*
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2
Q

Bilateral Head Extensors

A

Semispinalis Capitis - deeper and directed vertically
Splenius capitis - above semisplinalis and directed more laterally
Splenius cervicis - more lateral to the splenius capitis
Splenius muscles innervated by Dorsal Rami C1-6
Semispinalis innervated by Dorsal Rami C4-8

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3
Q

Elevators of the Scapula

And innervation

A

Superior fibers of Trapezius - spinal accessory nerve

Levator Scapula - dorsal scapular nerve

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3
Q

Depressors of Scapula

A

Inferior Fibers of Trapezius - Spinal Accessory nerve

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4
Q

External Arm Rotators

A

Teres Minor

Infraspinatus

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5
Q

Retractors of scapula

And innervation

A

Rhomboids (Major and Minor) - dorsal scapular nerve

Middle fibers of Trapezius - spinal accessory nerve

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6
Q

Internal Arm Rotators

A

Pectoralis Major
Latissimus Dorsi
Subscapularis
Teres Major

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7
Q

Protractor of Scapula (and innervation)

A

Serratus Anterior

Innervated by Long Thoracic nerve C5-7

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8
Q

Arm Flexors

A

Coracobrachialis
Biceps
Pectoralis Major
Deltoid

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9
Q

Arm Extensors

A

Latissimus Dorsi
Deltoid
Triceps
Teres Major

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10
Q

Arm Abductors

A

Supraspinatus (1st 15 degrees)

Deltoid

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11
Q

Arm Adductors

A 
Latissimus Dorsi
Pectoralis Major
Teres Major
Coracobrachialis
Long Head Tricep
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12
Q

Forearm Supinators

A

Biceps (major supinators*)

Supinator

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13
Q

Forearm Protonators

A

Protonator Teres

Protonator Quadratus

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14
Q

Elbow Extensors

A

Triceps

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15
Q

Elbow Flexors

A

Biceps Brachii,
Brachialis,
Brachioradialis (when arm is semi protonated)

16
Q

Forearm Supinator Muscles

A 
Biceps Brachii (major),
Supinator
17
Q

Forearm Protonator Muscles

A 
Protonator Teres (major),
Protonator Quadratus
18
Q

Wrist Flexors

A

Flexor digitorum Superficialis,
Flexor carpi radialis,
Flexor carpi ulnaris
Palmaris Longus

19
Q

Wrist Extensors

A

Extensor carpi radialis longus
Extensor carpi radialis brevis
Extensor Carpi ulnaris

20
Q

Digit Flexors

Be specific with fingers

A

Flexor digitorum profundus (DIP @ fingers 2-4)
Flexor Pollicis Brevis (thumb)
Flexor Pollicis Longus

21
Q

Digit Extensors

A 
Extensor pollicis longus (thumb),
Extensor pollicis brevis (thumb),
Extensor indicis (2nd finger),
Extensor digitorum (fingers 2-5),
Extensor digiti minimi (5th finger)
22
Q

Digit abductors

A 
Dorsal interrosei (4)
Abductor Pollicis brevis (thumb)
“DAB = dorsal abductors”
23
Q

Digit adductors

A 
Palmar interosseus (3)
Adductor pollicis (thumb)
24
Q

Lateral Thigh Rotators at the Hip (5)

A 
Piriformis,
Gemellus Superior,
Obturator Internus,
Gemellus Inferior,
Quadratus Femoris
“P-Go-Go-Q”
25
Q

Medial Thigh Rotators (2)

A

Gluteus medius,

Gluteus Minimus

26
Q

Hip Abductors (2)
(And innervation)
Include test for Defect

A

Gluteus medius,
Gluteus minimus
Innervated by Superior gluteal nerve
“Unable to stabilize hip when standing on one leg ~ tilts to affected side”

27
Q

Thigh Extensor at the Hip (and innervation)

Include test for Defect

A

Gluteus Maximus
(Inferior Gluteal nerve)
(+) Gower’s test - patient has to lean back to walk

28
Q

Thigh Flexors at the Hip

And innervations

A

Tensor Fascia Latae - innervated by Superior gluteal nerve
Pectineus - innervated by Obturator and Femoral Nerves
Illiopsoas - Femoral Nerve

29
Q

Hip Adductors (7) (include innervation)

A 
Adductor Brevis,
Adductor Longus,
Adductor Magnus (extensor part innervated by Tibial nerve)
Adductor Minimus,
Pectineus,
Obturator Externus,
Gracilis - most medial
“Medial thigh muscles” ~ innervated by Obturator Nerve
30
Q

Leg Extensors at the Knee (4)

“Thigh Flexors” (and innervation)

A 
Vastus lateralis,
Vastus Intermedius,
Vastus Medialis,
Rectus Femorus
“All 4 heads of the quadriceps innervated by Femoral Nerve”
31
Q

Leg Flexors at the Knee (3)

“Thigh Extensors” (and innervation)

A

Biceps Femoris
Semitendinosus
Semimembranosus
“Hamstrings innervated by Tibial nerve, except Short head of Biceps femoris: Common fibular nerve”

32
Q

Foot Dorsiflexors (4) at the Ankle (and innervation)

A 
Tibialis anterior
Extensor Hallucis Longus
Extensor Digitorum Longus
Fibularis Tertius
*All ANTERIOR innervated by Deep Fibular Nerve*
Mnemonic: “Deep Dorsiflexors”
33
Q

Foot Plantar Flexors at the Ankle (and innervation)

A 
Gastrocnemius
Soleus
Plantaris
Flexor Hallucis Longus
Flexor Digitorum Longus
Tibialis Posterior
*All innervated by Tibial Nerve and found in POSTERIOR LEG*
Mnemonic: “Posterior Plantars”
34
Q

Foot Everters (and innervation)

A

Fibularis Longus - weak plantar flexion
Fibularis Brevis - weak plantar flexion
Both innervated by Superficial Fibular Nerve and in LATERAL LEG
Mnemonic: “Lateral Super Fibs”

36
Q

Foot Inverters (and innervation)

A

Tibialis Posterior - weak inverter and good plantar flexor

Innervated by Tibial nerve

Structure And Function (41 decks)

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