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ANE 8509 Principles of Anesthesia I > Final- Regional Neuroanatomy Part 2 > Flashcards

Final- Regional Neuroanatomy Part 2 Flashcards

1
Q

What provides motor and sensory innervation for the pelvis and lower limbs?

A
  • Lumbosacral plexus
  • Lumbar plexus (superior)
  • Sacral plexus (inferior)
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2
Q

What spinal nerves contribute to the lumbosacral plexus?

A
  • Spinal Nerves L1 to S4.
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3
Q

What spinal nerves contribute to the lumbar plexus?

A
  • Spinal Nerves L1 to L4
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4
Q

What spinal nerves contribute to the sacral plexus?

A
  • Spinal Nerves L4 to S4.
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5
Q

What are the 6 nerves that make up the lumbar plexus?

A
  • Iliohypogastric nerve (L1)
  • Ilioinguinal nerve (L1)
  • Genitofemoral nerve (L1-L2)
  • Lateral cutaneous nerve of the thigh (L2-L3)
  • Obturator nerve (L2-L4)
  • Femoral nerve (L2-L4)
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6
Q

What is the largest diameter nerve in the lumbar plexus?

A
  • Femoral nerve
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7
Q

What are the 3 superior pelvic nerves?

A
  • Iliohypogastric nerve
  • Ilioinguinal nerve
  • Genitofemoral nerve
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8
Q

What muscle do the 3 superior pelvic nerves originate from?

A
  • Psoas major muscle
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9
Q

The Iliolhypogastric nerve will provide sensory innervation to what parts of the body?

A
  • Small part of the lateral pelvis/hip through the lateral cutaneous branch
  • Anterior portion of the reproductive system through the anterior cutaneous branch
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10
Q

What muscles will have motor innervation through the iliohypogastric nerve?

A
  • Transverse abdominis (may be utilized when breathing under labor/stress)
  • Internal abdominis muscles
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11
Q

The Ilioinguinal nerve will provide sensory innervation to what parts of the body?

A
  • Medial upper quadricep muscle
  • Right above the reproductive organs
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12
Q

What muscles will have motor innervation through the ilioinguinal nerve?

A
  • Internal oblique muscle
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13
Q

The genitofemoral nerve branches off into what two nerves?

A
  • Femoral branch
  • Genital branch
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14
Q

What muscles in men will have motor innervation through the genitofemoral nerve?

A
  • Cremaster muscle/ Reflex
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15
Q

What ligament is attached to the pubic tubercle?

A
  • Inguinal Ligament
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16
Q

What are two attachment points for the inguinal ligament?

A
  • Anterior Superior Iliac Spine (ASIS)
  • Pubic Tubercle
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17
Q

A horizontal line across the iliac crest will indicate what landmark on the spine?

A
  • The border of L4 and L5
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18
Q

What are the muscles that make up the femoral triangle?

A
  • Iliopsoas
  • Sartorius
  • Pectineus
  • Adductor Longus
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19
Q

Describe the position of the femoral nerve, femoral artery, and femoral vein in the femoral triangle.

A
  • Femoral Nerve: Lateral
  • Femoral Artery: Middle
  • Femoral Vein: Medial

These structures are about 1 cm apart from each other.

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20
Q

What wraps around the femoral nerve, artery, and vein?

A
  • Femoral sheath
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21
Q

What nerve is responsible for the sensory innervation of the lower leg?

A
  • Saphenous Nerve

Saphenous Nerve is branched off the femoral nerve

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22
Q

The adductor canal is between what two muscles?

A
  • Anterior and medial thigh muscles
  • The adductor canal is also inferior to the femoral triangle.
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23
Q

What are the three muscles that surround the adductor canal?

A
  • Sartorius Muscle
  • Adductor Longus
  • Vastus Medialis
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24
Q

What does the adductor canal provide a pathway for?

A
  • Pathway for the saphenous nerve to pass through.
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25
Which nerve provides sensory information to the lateral anterior thigh?
* Lateral Cutaneous Nerve (LCA)
26
What foramen does the obturator nerve pass through?
* Obturator Foramen at the base of the pelvis
27
The obturator nerve serves primarily as a motor neuron. What muscles does the obturator nerve innervate?
* Obturator externus * Adductor longus * Adductor brevis * Gracilis * Pectineus * Adductor magnus
28
Where would the obturator nerve provide sensory innervation?
* There is a small cutaneous branch on the medial thigh just above the knee.
29
What ligament will the femoral nerve sit right under?
* Inguinal Ligament
30
The femoral nerve will innervate what four muscles in the leg?
* Iliopsoas * Pectineus * Sartorius * Quadricep femoris
31
What are the sensory branches of the femoral nerve?
* Anterior cutaneous branch of the femoral nerve * Saphenous nerve
32
What are the primary motor nerves of the sacral plexus?
* Superior gluteal nerve (L4-S1) * Inferior gluteal nerve (L5-S2)
33
What are the three gluteal muscles?
* Gluteus Maximus * Gluteus Minimus * Gluteus Medius
34
What muscles does the superior gluteal nerve innervate?
* Gluteus Medius * Gluteus Minimus * Tensor Fasciae Latae
35
What muscles does the inferior gluteal nerve innervate?
* Gluteus Maximus
36
What four main nerves provide sensory innervation to the gluteal region?
* Superior Clunial Nerve * Middle Clunial Nerve * Inferior Clunial Nerve * Lateral Branch of Iliohypogastric Nerve
37
The superior clunial nerve is formed by what spinal nerves?
* Posterior Rami of L1 to L3
38
The middle clunial nerve is formed by what spinal nerves?
* Posterior Rami of S1 to S3
39
The inferior clunial nerve arises from what nerve?
* Posterior femoral cutaneous (branch of the sacral plexus)
40
The sciatic nerve is a combo of what two nerves?
* Tibial Nerve (L4 to S3) * Common Fibular Nerve (L4 to S2)
41
The sciatic nerve is formed from what spinal nerve?
* Spinal Nerve L4 to S3
42
What is another term for the common fibular nerve?
* Peroneal Nerve
43
What is the largest nerve in the body in terms of diameter?
* Sciatic Nerve
44
Label 1
* Sciatic nerve
45
Label 2
* Common fibular nerve (peroneal nerve)
46
Label 3
* Deep fibular nerve
47
Label 4
* Superficial fibular nerve
48
Label 5
* Superficial fibular nerve
49
The fibular nerve splits into what three divisions?
* Lateral Sural Cutaneous Nerve * Superficial Fibular Nerve * Deep Fibular Nerve
50
Where does the Lateral Sural Cutaneous nerve provide sensory innervation?
* Lateral side of the calf
51
Where does the Superficial Fibular Nerve provide sensory innervation?
* Top of the foot
52
What are the two branches of the superficial fibular nerve?
* Medial dorsal cutaneous nerve * Intermediate dorsal cutaneous nerve
53
Where does the Deep Fibular Nerve provide sensory innervation?
* Between the Big Toe and 2nd Toe
54
What are the branches of the Deep Fibular Nerve?
* Lateral cutaneous nerve of the big toe * Medial cutaneous nerve of the 2nd toe
55
Label 1, 2, and 3
* 1: Sciatic Nerve * 2: Tibial Nerve (travels medially) * 3: Common Fibular Nerve (travels laterally)
56
What are the four direct cutaneous branches of the tibial nerve?
* Medial Sural Cutaneous Branch * Medial Calcaneal Branch * Lateral Calcaneal Branch * Lateral Dorsal Cutaneous Branch
57
The tibial nerve will branch off to what two nerves at the foot?
* Medial Plantar Nerve * Lateral Plantar Nerve
58
What are the nerves that make up the sacral plexus?
* Superior gluteal nerve * Inferior gluteal nerve * Posterior cutaneous nerve of thigh * Sciatic Nerve (Peroneal and Tibial n.) * Pudendal Nerve
59
List the spinal nerve origins of the following: -Superior gluteal nerve -Inferior gluteal nerve -Posterior cutaneous nerve of thigh -Common fibular nerve -Tibial nerve - Pudendal nerve
60
Name the function of the pudendal nerve
* Sensory innervation to the pelvis * Rectum and colon motility * Reproductive organ function
61
Where does the posterior cutaneous nerve of the thigh provide sensory innervation?
* Hamstring * Lower Gluteal Region * This nerve is also the starting point of the inferior clunial nerve

ANE 8509 Principles of Anesthesia I (27 decks)

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