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MRCS Part B > Muscles Deck > Flashcards

Muscles Deck Flashcards

1
Q

Foot + Lower Leg Cutaneous Supply

A
  • *Saphenous** - Medial Calf + Proximal Medial Foot
  • *Sural -** Posterior Calf + Lateral Foot

Calcaneal Nerve (Tibial) - Heel

Medial Plantar Nerve + Lateral Plantar Nerve - Plantar aspect of foot

Superficial peroneal Nerve - Dorsum of foot excluding 1st web space

Deep Peroneal Nerve - 1st web space

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2
Q

Tibial Nerve

Nerve Roots / Parent Nerve

Muscle Supply

Cutaneous Supply

A

L4 - S3 ( Sciatic Nerve )

Posterior COmpartment of leg:

Superficial - Soleus, Plantaris, Gastrocnemius

Deep - Tibialis Posterior, FHL, FD, Popliteus

Cutaneous:

Contributes to sural nerve so - Posterior Calf and Lateral sole

Terminates as medial + lateral plantar nerves

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3
Q

Superifical Peroneal Nerve

Nerve Roots / Parent Nerve

Muscle Supply

Cutaneous Supply

A

L4-S1 (Common Peroneal Nerve From Sciatic Nerve)

Muscles:

Lateral Leg Compartment - Peroneus Longus + Peroneus Brevis

Cutaneous:

Dorsum of foot exceot first web space

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4
Q

Deep Peroneal Nerve

Nerve Roots / Parent Nerve

Muscle Supply

Cutaneous Supply

A

L4- S1

Muscles:

Anterior compartment of leg - Tibialis Anterior, Peroneus Tertius, EHL, ED

Cutaneous Supply - 1st Dorsal Web Space

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5
Q

Sciatic Nerve

Nerve Roots / Parent Nerve

Muscle Supply

Cutaneous Supply

A

L4- S3 (Exits beneath pirformis through GSF enterring posterior thigh)

Muscles -

Posterior Compartment of thigh:

Semitindinosis

Semimebranosis

Biceps Femoris

Adductor Magnus (Hamstring portion)

No direct cutaneous branches

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6
Q

Femoral Nerve

Nerve Roots / Parent Nerve

Muscle Supply

Cutaneous Supply

A

L2-L4

Anterior Compartment of thigh - Iliopsoas, Pectineus, Rectus Femoris, Vastus Medialis, Intermedius + Lateralis, Sartorius

Cutaneous Supply -

Directly - Anteriomedial thigh

Continues as saphenous nerve - Medial calf + sole of foot

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7
Q

Obturator Nerve

Nerve Roots / Parent Nerve

Muscle Supply

Cutaneous Supply

A

L2-L4

Muscles - Adductor Longus, Adductor Brevis, Adductor Magnus (Adductor portion), Obturator Externus, Gracilis

Cutaneous - Medial Thigh

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8
Q

Inferior Gluteal Nerve

Nerve Roots / Parent Nerve

Muscle Supply

A

L5-S2

Muscle - Gluteus Maximus

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9
Q

Superior Gluteal Nerve

Nerve Roots / Parent Nerve

Muscle Supply

Cutaneous Supply

A

L4-S1

Muscles: Gluteus Medius, Minimus, Tensor Fascia Lata

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10
Q

Nerve to Quadratus Femoris

Nerve to Obturator Internus

Nerve to piriformis

Nerve Roots / Parent Nerve

Muscle Supply

Cutaneous Supply

A

Nerve to Quadratus Femoris

L4-S1

Muscle - Quadratus Femoris, Inferior Gemellus

Nerve to Obturator Internus

L5-S2

Muscle - Obturator Internus, Superior Gemellus

Nerve to piriformis

S1- S2

Muscle - Piriformis (Sacrum –> GT through GSF)

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11
Q

Posterior Cuteanous Nerve of the thigh

Intermediate cutaneous nerve of the thigh

Lateral cutaneous nerve of thigh

Nerve Roots / Parent Nerve

Muscle Supply

Cutaneous Supply

A

Posterior Cutaneous nerve of the thigh

S4-S3

Intermediate cutaneous nerve of the thigh

L2-L3

Lateral Cutaneous nerve of the thigh

L2-L3

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12
Q

Ilioingunial Nerve

Iliohypogastric Nerve

Genitofemoral Nerve

Nerve Roots / Parent Nerve

Muscle Supply

Cutaneous Supply

A

Ilioinguinal Nerve

L1

Muscles - Internal Oblique + Transversus Abdominus

Cutaneous - Upper thigh, root of penis, ansterior scrotum

Iliohypogastric Nerve

L1

Muscles - Internal oblique + Trasnverses Abdominus

cutaneous - Posteriolateral gluteal region

Genitofemoral Nerve

L1-L2 (Two branches Femoral + Genital)

Muscles - Genital branch innervates cremaster muscle

Cutaneous - Genital - Scrotum/ Mons + Majora

Femoral- ANterior thigh

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13
Q

Long Thoracic Nerve

Nerve Roots / Parent Nerve

Muscle Supply

Cutaneous Supply

A

C5- C7 Roots

Serratus Anterior

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14
Q

Dorsal Scapular Nerve

Nerve Roots / Parent Nerve

Muscle Supply

Cutaneous Supply

A

C5 Nerve Root

Rhomboideus, Levator Scapulae

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15
Q

Lateral Pectoral Nerve

Nerve Roots / Parent Nerve

Muscle Supply

Cutaneous Supply

A

C5- C7 (Lateral Cord Brachial plexus)

Petoralis Major Muscle

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16
Q

Medial Pectoral Nerve

Nerve Roots / Parent Nerve

Muscle Supply

Cutaneous Supply

A

C8-T1 (Medial Cord Brachial Plexus)

Pectoralis Major + Minor

17
Q

Thoracodorsal Nerve

Nerve Roots / Parent Nerve

Muscle Supply

Cutaneous Supply

A

C6-C8 (Posterior Cord)

Latissimus Dorsi

18
Q

Suprascapular Nerve

Nerve Roots / Parent Nerve

Muscle Supply

Cutaneous Supply

A

C5-C6 (Upper Trunk)

Supraspinatous, Infraspinatous

19
Q

Upper and Lower Subscapular Nerve

Nerve Roots / Parent Nerve

Muscle Supply

Cutaneous Supply

A

C5-C6 (posterior cord)

Subscapualris and Teres Major

20
Q

Nerve to Subclavius

Nerve Roots / Parent Nerve

Muscle Supply

Cutaneous Supply

A

C5-C6 (Upper Trunk)

Subclavius Muscle

21
Q

Medial Cutaneous nerve of the arm

Nerve Roots / Parent Nerve

Muscle Supply

Cutaneous Supply

A

T1 (Medial Chord)

Cutaneous - To medial upper arm

22
Q

Medial Cutaneous Nerev of the forearm

Nerve Roots / Parent Nerve

Muscle Supply

Cutaneous Supply

A

C8-T1 (Medial Forearm)

Cutaneous - Medial forearm

23
Q

Median Nerve

Nerve Roots / Parent Nerve

Muscle Supply

Cutaneous Supply

A

C6-T1 (Medial + Lateral Cords combined)

Muscles: Anterior forearm (except medial FDP) - via Anterior Interosseus Nerve

Hand - Lateral Lumbricals, Opponens Pollicis, Abductor Pollicus Brevis, Flexor Pollicis Brevis

Cutaneous - Lateral Palm (palmar cutaneous nerve) + Lateral 3.5 digits (palmar digital nerve)

24
Q

Musculocutaneous Nerve

Nerve Roots / Parent Nerve

Muscle Supply

Cutaneous Supply

A

C5 - C7 (Terminal branch of lateral cord)

Muscles: Biceps, Brachialis, Corachobrachialis

Cutaneous -

Continues into the forearm as - Lateral cutaneous nerve of the forearm

25
Q

Axillary nerve

Nerve Roots / Parent Nerve

Muscle Supply

Cutaneous Supply

A

C5-C6 (Terminal branch of posterior Cord)

Muscles - Deltoid, Teres Minor

Cutaneous - Lateral shoulder

26
Q

Radial Nerve

Nerve Roots / Parent Nerve

Muscle Supply

Cutaneous Supply

A

C5-T1 (Terminal branch of posterior cord of brachial plexus)

Muscles -

Arm - Triceps, Anconeus

Forearm - ECU, ECR, ED, EDM, Brachioradialis, Supinator

(Thumb) - APL, EPL, EPB

Sensation - Posterior Arm, Forearm + lateral Dorsum of hand

27
Q

Ulnar Nerve

Nerve Roots / Parent Nerve

Muscle Supply

Cutaneous Supply

A

C8-T1 (Medial Cord)

Muscles:

Forearm - FCU, Medial FDP

Hand - All except Median muscles (Lateral Lumbricals, Opponens pollicis, Abductor Pollicis brevis, Flexor Pollicis Brevis)

Cutaneous:

Ant. + Post. Surface of medial hand

28
Q

Ansa Cervicalis

Nerve Roots / Parent Nerve

Muscle Supply

Cutaneous Supply

A

C1-C3

Muscles - Sternothyroid, Sternohyoid, Anterior + Posterior belly of omohyoid

29
Q

Nerve to geniohyoid + thyrohyoid

Nerve Roots / Parent Nerve

Muscle Supply

Cutaneous Supply

A

2 Seperate Nerves (Both from C1) –> Both hitching a ride on hypoglossal nerve

Geniohyoid - Elevates hyoid

Thryohyoid - Depressed hyoid and elevates larynx

30
Q

Nuchal Ligament

A

Extens from the external occipital protuberence to the C7 Dorsal spinous process

- Trapezius and splenius capitis attach

MRCS Part B (11 decks)

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