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anatomy > week 9 > Flashcards

week 9 Flashcards

1
Q

Branches of the Spinal nerve

A

Dorsal ramus is distributed to the muscles of the back, and the skin covering those muscles
* Ventral ramus is distributed to the muscles of the anterior and lateral trunk, and the corresponding skin
* Ventral rami are also distributed into the limbs to supply the muscles and skin there

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2
Q

femoral nerve (of the lumbar plexus) - root value, motor distribution and sensory distribution

A

RV: L234
motor dist: iliacus, pectineus, sartorius, quadriceps group
sensory dist: skin of anterior and medial thigh, knee and hip joints

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2
Q

saphenuor (femoral nerve) (of the lumbar plexus) sensory distribution

A

skin of the medial leg to base of great toe

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3
Q

obturator nerve (of the lumbar plexus) - root value, motor distribution and sensory distribution

A

RV: L234
motor dist: pectineus, adductor brevis, longus and half of magnus, obt ext, gracilis
sensory dist: skin of medial thigh and hip joint

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4
Q

lateral femoral cutaneous nerve (of the lumbar plexus) sensory distribution

A

skin of the lateral thigh

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5
Q

genitofemoral nerve (of the lumbar plexus) sensory distribution

A

skin of the medial thigh, skin of the external genitalia

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6
Q

muscular branches (of the lumbar plexus) motor dist and sensory dist

A

motor dist: iliacus and psoas major
sensory dist: Hip joint

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7
Q

Posterior femoral cutaneous (of the lumbosacral plexus) sensory dist

A

skin of posterior thigh and leg to mid calf

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8
Q

superior gluteal nerve (of the lumbosacral plexus) motor dist and sensory dist

A

motor dist: gluteus medius and minimus, tensor fascia lata
sensory dist: hip joint

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9
Q

inferior gluteal motor nerve (of the lumbosacral plexus) dist and sensory dist

A

motor dist: gluteus maximus
sensory dist: hip joint

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10
Q

muscular branch nerve (of the lumbosacral plexus) motor dist and sensory dist

A

motor dist: external rotators except obt ext
sensory dist: hip joint

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11
Q

sciatic nerve (of the lumbosacral plexus) root value, motor dist and sensory dist

A

RV: L45S123
motor dist: hamstrings and half of adductor magnus
sensory dist: hip and knee joints

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12
Q

tibial nerve (of the sciatic nerve) motor dist and sensory dist

A

motor dist- gastrocs, soleus, plantaris, popliteus, TP, FHL, FDL
sensory dist- knee and ankle joints

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13
Q

medial plantar nerve (of the sciatic nerve) of tibial nerve motor dist and sensory dist

A

motor dist- AbdHall, FDB, FHB, 1st lumbrical
sensory dist- skin of the medial 3 and 1⁄2 digits and corresponding sole and joints in the foot

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14
Q

lateral plantar nerve of tibial nerve (of the sciatic nerve) motor dist and sensory dist

A

motor dist- FDMB, AddHall, 2nd to 4th lumbricals, intertossei, AbDM, FA
sensory dist- skin of the lateral 1 and 1⁄2 digits and corresponding sole and joints in the foot

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15
Q

sural nerve of tibial nerve (of the sciatic nerve) and sensory dist

A

skin of the lateral and posterior leg, heel and skin of the lateral side of the sole

16
Q

common perineal nerve (of the sciatic nerve) sensory dist

A

knee joint, skin of ant. post. and lat upper leg (adj. to knee)

17
Q

superficial peroneal (of the sciatic nerve) nerve motor dist and sensory dist

A

motor dist- peroneus longus and brevis
sensory dist- skin of lat leg, dorsum of foot except skin between digits 1 and 2, and ankle joint

18
Q

deep peroneal nerve (of the sciatic nerve) motor dist and sensory dist

A

motor dist- TA, EHL, EDL, PT, EDB
sensory dist- skin between digits 1 and 2, and ankle and foot joints

19
Q

what are the most venerable sites of Damage to Peripheral Nerves

A
  • Close to skin - penetrating injury
  • Between skin and bony projection - crushing injury e.g. plaster applied to tightly
  • Between retinacula and bone - squashing injury or small amount of swelling with no where to go
  • On bone - from fracture
20
Q

what are the common effects of nerve lesions

A
  • Paralysis / paresis
  • Loss of sensation
  • Seen distal to lesion
21
Q

Lesion Femoral Nerve- Inguinal Ligament motor loss sensory loss and functional.

A

motor loss:
* Quadriceps femoris
* Sartorius
* Pectineus
sensory loss: Loss of skin sensation on the medial and anterior thigh, medial leg and medial foot
Functional motor loss

22
Q

Myotomes

A

A group of muscles supplied by one spinal nerve (via both its dorsal and ventral rami)

23
Q

dermatome

A

skin (cutaneous) sensory territory of a single spinal nerve

24
Q

Lower Limb Myotomes HIP movements and myotome

A

movement flexion extension
myotome: L2L3, L4L5

25
Q

Lower Limb Myotomes KNEE movements and myotome

A

movement: extension and flexion
myotome: L3L4, l5S1

26
Q

Lower Limb Myotomes ANKLE movements and myotome

A

movement: dorsiflexion plantar flexion
myotome: L4L5, S1S2

27
Q

Lower Limb Myotomes TOES movements and myotome

A

movement extension flexion
myotome: L5S1, S1S2

anatomy (24 decks)

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