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(Physio) A&P Palpations > Nerve Pathways > Flashcards

Nerve Pathways Flashcards

1
Q

Which nerve originates at ventral Rami (L2-L4)

A

the femoral nerve

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2
Q

Which nerve passes deep to Biceps Fem to arrive at posterior aspect of Fibula head

A

The common peroneal nerve

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3
Q

What nerve does the tibial nerve originate from?

A

the sciatic nerve

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4
Q

Which nerve supplies the following 4 muscles

Pronator Teres (pronates forearm)

Flexor Carpi Radialias (flex & radial deviation wrist)

Palmaris Longus (flex wrist)

Flexor Digitorium Superficialis (flex middle phalanges)

A

The Median Nerve

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5
Q

Which nerve is highlighted here?

A

The superficial common peroneal nerve

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6
Q

Which neve descends under Biceps, lies on intermuscular septum?

A

The Median nerve

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7
Q

Which nerve enters forearm between 2 heads of Pronator Teres

A

The median nerve

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8
Q

Which nerve originates from just the medial cord of Brachial Plexus (C8, T1)

A

The Ulnar nerve

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9
Q

At which joint structure does the median nerve end (before muscles)

A

Becomes superficial at wrist to enter hand under flexor retinaculum anterior to long flexor tendons

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10
Q

Where does the ulnar nerve originate?

A

Medial cord of Brachial Plexus (C8, T1)

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11
Q

What does the superficial common peroneal nerve supply?

A
  1. Peroneus Longus (everts foot)
  2. Peroneus Brevis (everts foot)
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12
Q

describe the path of the deep common peroneal nerve

A
  • Passes into anterior compartment of leg deep to Extensor Digitorium Longus
  • Descends on anterior surface of Interosseous Membrane
  • Passes deep to Extensor Hallucis Longus and Superior Extensor Retinaculae
  • Enters dorsum of foot between tendons of Extensor Hallucis Longus and Extensor Digitorium Longus
  • Divides into Medial and Lateral Branches
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13
Q

What are the 4 muscles supplies by the sciatic nerve?

A
  1. Semitendinosus
  2. Semimembranosus
  3. Biceps Femoris
  4. Adductor Magnus (ischial head)
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14
Q

Where does the radial nerve originate?

A

•Posterior cord of Brachial Plexus (C5-C8)

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15
Q

Which nerve originates from the posterior cord of Brachial Plexus (C5-C8)

A

The radial nerve

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16
Q

Which malleolus does the tibial nerve pass behind?

A

Medial malleolus

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17
Q

Which nerve enters anterior compartment of forearm between 2 heads of Flexor Carpi Ulnaris

A

The ulnar nerve

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18
Q

where does the median nerve originate?

A

Lateral (C5-C7) & Medial (C8, T1) cords of Brachial Plexus

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19
Q

What does the sciatic nerve divide into?

A

Common Peroneal and Tibial Nerve branches

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20
Q

True or False?

The femoral nerve enters femoral triangle lying medially to femoral artery

A

FALSE

•Enters femoral triangle lying laterally to femoral artery

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21
Q

What 5 muscles does the femoral nerve supply?

A
  1. Sartorius (anterior)
  2. Rectus Femoris
  3. Vastus Lateralis
  4. Vastus Medialis
  5. Vastus Intermedius
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22
Q

What does the sciatic nerve supply? (articular)

A

Hip

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23
Q

What does the deep branch of the common peroneal nerve supply? (articular)

A
  • Inferior Tibiofibular joint
  • Ankle
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24
Q

Wich nerve is highlighted here?

A

the common peroneal nerve

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25
Q

Describe the path of the radial nerve

A
  • Lies behind axillary artery. Passes in front of Subscapularis, Lat Dors and Teres Major tendons in Axilla, entering posterior compartment of arm
  • Runs in Spiral (Radial) Groove between lateral & medial heads of Triceps
  • Passes into anterior compartment between Brachialis and Brachioradialis in front of lateral epicondyle
  • Divides into superficial & deep branch (posterior interosseus nerve)
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26
Q

Describe the path of the superficial common peroneal nerve

A
  • Descends vertically between Peronei and Extensor Digitorum Longus
  • Distal 1/3 of leg divides into medial and lateral branches
  • These pass over anterolateral aspect of ankle
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27
Q

What does the common peroneal nerve supply?

A

•Articular branches

  • Knee
  • Superior Tibiofibula joint
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28
Q

Which nerve orginiates from both Lateral (C5-C7) & Medial (C8, T1) cords of Brachial Plexus

A

The Median nerve

29
Q

What nerve is highlighted here?

A

The tibial nerve

30
Q

Which nerve passes into thigh below Inguinal Ligament

A

the femoral nerve

31
Q

Which nerve passes deep to Extensor Hallucis Longus and Superior Extensor Retinaculae

A

The deep branch of the common peroneal nerve

32
Q

Where does the sciatic nerve originate

A

Ventral Rami (L4-S3) anterior to Piriformis

33
Q

Describe the path of the common peroneal nerve

A
  • Passes along upper lateral side of Popliteal Fossa medial to Biceps Femoris
  • Passes deep to Biceps Fem to arrive at posterior aspect of Fibula head
  • Winds forward around Fibula neck deep to Peroneus Longus
  • Divides into deep and superficial branches
34
Q

Where does the ulnar nerve end (before dividing)?

A

Enters hand anterior to Flexor Retinaculum lateral to Pisiform/medial to Hook of Hamate (Guyons Canal)

35
Q

What does the femoral nerve supply? (articular)

36
Q

What does the tibial nerve supply? (articular)

37
Q

What does the ulnar nerve supply (articular)

38
Q

Which nerve supplies both the

Flexor Carpi Ulnaris (flex & ulna deviation wrist)

Medial ½ Flexor Digitorium Profundus (flex distal phalanges)

A

The ulnar nerve

39
Q

What nerve is highlighted here?

A

Median Nerve

40
Q

Which nerve does the common peroneal originate from?

A

Sciatic nerve

41
Q

Where does the radial nerve end?

A

In front of the lateral epicondyle where it divides into superficial & deep branch (posterior interosseus nerve)

42
Q

Describe the path of the ulnar nerve

A
  • •Lies anterior to Triceps, distal ½ arm enters posterior compartment lying in front of medial head of Triceps
  • Passes into Ulna Groove (Medial eEpicondyle of Humerus & Olecranon Process)
  • Enters anterior compartment of forearm between 2 heads of Flexor Carpi Ulnaris
  • Descends on medial side lying on Flexor Digitorium Profundus
  • Enters hand anterior to Flexor Retinaculum lateral to Pisiform/medial to Hook of Hamate (Guyons Canal)
  • Divides into deep & superficial branches
43
Q

Which nerve lies behind axillary artery and passes in front of Subscapularis, Lat Dors and Teres Major tendons in Axilla, entering posterior compartment of arm

A

The Radial Nerve

44
Q

Where does the femoral nerve originate

A

•Ventral Rami (L2-L4)

45
Q

What nerve is highlighted here?

A

The Ulnar nerve

46
Q

Which nerve originates from the ventral Rami (L4-S3) anterior to Piriformis

A

The sciatic nerve

47
Q

What does the median nerve supply (articular)

48
Q

What nerve is highlighted here?

A

The radial nerve

49
Q

What are the 4 muscles the median nerve supplies?

A
  1. Pronator Teres (pronates forearm)
  2. Flexor Carpi Radialias (flex & radial deviation wrist)
  3. Palmaris Longus (flex wrist)
  4. Flexor Digitorium Superficialis (flex middle phalanges)
50
Q

What 7 muscles does the tibial nerve supply?

A
  1. Gastrocnemius
  2. Soleus
  3. Plantaris
  4. Popliteus
  5. Tibialis Posterior (inverts foot, plantar flexes)
  6. Flexor Digitorium Longus (flexes lateral four toes)
  7. Flexor Hallucis Longus (flexes big toe)
51
Q

Which nerve is highlighted here?

A

The sciatic nerve

52
Q

What does the common peroneal nerve divide into?

A

Deep and superficial branches

53
Q

Describe the path of the femoral nerve

A
  • Emerges from lateral border of Psoas Major and runs in a groove between Psoas Major & Iliacus
  • Passes into thigh below Inguinal Ligament
  • Enters femoral triangle lying laterally to femoral artery
  • Divides into anterior and posterior portions
54
Q

What does the deep common peroneal nerve divide into?

A

•Divides into Medial and Lateral Branches

55
Q

What 4 muscles does the deep branch of the common peroneal nerve supply

A
  1. Extensor Hallucis Longus (extends big toe)
  2. Extensor Digitorum Longus (extends 4 lateral toes)
  3. Tibialis Anterior (dorsi flexes ankle)
  4. Peroneus Tertius
56
Q

What does the radial nerve supply? (articular)

57
Q

Which nerve is highlighted here?

A

the femoral nerve

58
Q

Which nerve supplies the 5 muscles:

Triceps Brachii

Anconeus

Brachioradialis (flex elbow, pronates/supinates when resisted)

Lateral part of Brachialis (flex elbow)

Extensor Carpi Radialis Longus (extends & radial deviation)

A

The radial nerve

59
Q

Which nerve lies anterior to Triceps, and at the distal ½ arm enters posterior compartment lying in front of medial head of Triceps

A

The Ulnar nerve

60
Q

What 2 muscles does the ulnar nerve supply?

A
  1. Flexor Carpi Ulnaris (flex & ulna deviation wrist)
  2. Medial ½ Flexor Digitorium Profundus (flex distal phalanges)
61
Q

Which nerve enters thigh halfway between Ischial Tuberosity and Greater Trochanter

A

the sciatic nerve

62
Q

Describe the path of the Median Nerve

A
  • Descends under Biceps, lies on intermuscular septum and then Brachialis
  • Passes through Cubital Fossa medial to Biceps Tendon under Bicipital Aponeurosis
  • Enters forearm between 2 heads of Pronator Teres
  • Descends under Flexor Digitorium Superficialis and on Flexor Digitorium Profundus
  • Becomes superficial at wrist to enter hand under flexor retinaculum anterior to long flexor tendons
63
Q

What 5 muscles does the radial nerve supply?

A
  1. Triceps Brachii
  2. Anconeus
  3. Brachioradialis (flex elbow, pronates/supinates when resisted)
  4. Lateral part of Brachialis (flex elbow)
  5. Extensor Carpi Radialis Longus (extends & radial deviation)
64
Q

Which nerve descends vertically between Peronei and Extensor Digitorum Longus

A

the superficial common peroneal nerve

65
Q

Which nerve is highlighted here?

A

The deep branch of the common peroneal nerve

66
Q

When the tibial nerve enters the plantar aspect of the foot, what nerves does it divide into?

A

medial and lateral Plantar nerves

67
Q

Which nerve runs in Spiral (Radial) Groove between lateral & medial heads of Triceps

A

The radial nerve

68
Q

Describe the path of the sciatic nerve

A
  • Leaves pelvis through Greater Sciatic Foramen
  • Enters thigh halfway between Ischial Tuberosity and Greater Trochanter
  • Passes down back of thigh deep to Biceps Femoris
  • 2/3 way down (medial/lateral hamstrings part) divides into Common Peroneal and Tibial Nerve branches
69
Q

Describe the path of the tibial nerve

A
  • Passes through Popliteal Fossa lateral, then medial, to popliteal vessels
  • Enters lower limb under tendinous arch of Soleus
  • Lies on Tibialis Posterior lying between Flexor Digitorium Longus and Flexor Hallucis Longus
  • Passes behind Medial Malleoulus deep to Flexor Retinaculum
  • Enters plantar aspect of foot and divides into medial and lateral Plantar nerves

(Physio) A&P Palpations (7 decks)

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