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57 Cards in this Set
- Front
- Back
Action origin and insertion of quadratus lumborum?
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Extends & laterally flexes trunk
-important for balance Rib 12, transverse processes of lumbar vertebrae to iliac crest |
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Action origin and insertion:
Psoas major muscle |
Flexes hip, stabilizes trunk
T12-L5 vertebrae to lesser trochanter |
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Innervation: Psoas major muscle
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Lumbar plexus L1-L4
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Action, origin and insertion:
Iliacus muscle |
Strong hip flexor
Iliac fossa to lesser trochanter (meets with psoas major) |
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Nerve Vertebral Levels and & Innervation:
Subcostal n. |
T12 anterior ramus
Supplies motor & sensory to anterior abdominal wall |
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What does the Lumbar plexus give innervation to (generally)
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Supplies motor & sensory to
abdominal wall & LE |
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Nerve Vertebral Levels and & Innervation: iliohypogastric n.
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L1
Sensory: skin of superolateral buttocks and superomedial thigh (and inguinal and pubic regions) Motor: abdominal muscles (int. oblique, transversus abdominis) |
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Nerve Vertebral Levels and & Innervation: ilioinguinal
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L1
Sensory: skin of superolateral buttocks and superomedial thigh (and inguinal and pubic regions) Motor: abdominal muscles (int. oblique, transversus abdominis) |
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Nerve Vertebral Levels and & Innervation: genitofemoral n.
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L1-L2
Femoral branch: skin of anterosuperior thigh Genital branch: skin of genitalia, cremaster m. |
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Nerve Vertebral Levels and & Innervation:
lateral femoral cutaneous n. |
L2-L3
Sensory: anterolateral thigh |
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Nerve Vertebral Levels and & Innervation:
Femoral n. |
L2-L4
Sensory: skin of anteromedial thigh, (also part of leg & foot via the saphenous n.) Motor: anterior thigh mm. |
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Nerve Vertebral Levels and & Innervation:
Obturator n. |
L2-L4
Sensory: medial thigh Motor: medial thigh mm. |
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Nerve Vertebral Levels and & Innervation:
lumbosacral trunk |
lumbosacral trunk
Courses over sacral alae Joins sacral plexus |
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Nerve Vertebral Levels and & Innervation: sciatic nerve
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L4-S3 anterior rami
Innervates posterior thigh mm. -branches: leg & foot |
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Nerve Vertebral Levels and & Innervation: Superior gluteal n.
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L4-S1
Motor: gluteus minimus, gluteus medius & tensor fascia late |
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Sacral plexus Levels
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= S1-S4
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Lumbosacral plexus Levels
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= L2-S4
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Divisions of the sciatic nerve and their levels
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tibial n. (L4-S3): ant. division of ant. rami
common fibular nerve (L4-S2): post. division of ant. rami |
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Nerve Vertebral Levels and & Innervation: Inferior gluteal n.
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L5-S2
Motor: gluteus maximus |
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Nerve Vertebral Levels and & Innervation: Posterior femoral cutaneous n.
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S2, S3
Sensory: posterior thigh; also posterior buttocks (via inferior clunial nn.) |
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Neves to Piriformis
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(S1, S2)
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Nerves to Quadratus femoris
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(L5-S1; maybe L4)
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Nerves to inferior gemellus
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(L5-S1; maybe L4)
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nerves to Obturator internus
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(L5-S2)
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nerve levels that supply superior gemellus
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(L5-S2)
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Abdominal aorta
-bifurcation |
L4
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IVC Level
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L5
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Trace Lymph Drainage from Posterior Abdominal Wall
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Superficial LE to superficial inguinal nodes
Deep LE to deep inguinal nodes Both drain to: -external iliac nodes -common iliac nodes -lumbar nodes -lumbar lymphatic trunks -cisterna chyli -thoracic duct |
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What is the cutaneous innervation for the following?
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A) subcostal n.
B)lateral femoral cutaneous n. C) femoral n. D) saphenous n. E)genitofemoral n. F)obturator n. |
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What is the cutaneous innervation?
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Movement of Piriformis muscle
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Lateral rotator & stabilizer of hip
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Muscles that attach to great trochanter do what?
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Rotate and stabilize the hip
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superior & inferior gemellus have what function?
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Lateral rotator & stabilizer of hip
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obturator internus has what function?
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Lateral rotator & stabilizer of hip
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Where does quadratus femoris attach and what is its function?
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intertrochanteric crest
Lateral rotator & stabilizer of hip |
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obturator externus function & insertion?
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lateral rotators & stabilizers
trochanteric fossa |
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Tensor fascia lata muscle innervation?
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Superior gluteal n.
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Gluteus maximus muscle innervation?
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Inferior gluteal n.
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Gluteus medius & minimus mm. innervation?
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Superior gluteal n.
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How might Superior gluteal nerve damage present?
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Walking typified by overcompensation,
leaning trunk over affected side: “waddling gait.” Leaning towards unaffected side know as Trendelenburg sign. |
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What is IT Band Syndrome?
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Inflammation of IT band over lateral femoral epicondyle and/or greater trochanter caused by overuse.
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Semitendinosus muscle innervation & vascular supply
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Sciatic nerve,tibial division
deep artery of the thigh |
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Semimembranosus muscle innervation & vascular supply
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Sciatic nerve,tibial division
deep artery of the thigh |
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Biceps femoris muscle innervation & vascular supply
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Sciatic nerve,tibial division for LONG HEAD
Sciatic nerve, fibular division for SHORT HEAD deep artery of the thigh |
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What muscles protect the sciatic nerve?
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Long head of biceps femoris the thigh
& gluteus maximus in the gluteal region |
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Adductor magnus muscle, hamstring division:
Innervation & compartment |
sciatic n. (tibial division)
Posterior compartment |
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What is Pes ansurinus?
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Goose Foot...
The attachement site of muscles from each of the compartments on the medial condyle of the tibia as follows: Sartorius (anterior comp) Gracilis (medial comp) Semitendinosus (post comp) |
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Superior gluteal n. levels and innervation
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(L4-S1)
gluteus medius, gluteus minimus, and tensor fascia lata (hip abduction) |
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Inferior gluteal n. levels and innervation
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(L5-S2) gluteus maximus
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Post. femoral cutaneous n. levels and innervation
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(S2-S3) Sensory of inferior buttocks, posterior thigh
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Sciatic n. levels and terminal branches
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(L4-S3)
Tibial n. (ant. division) Common fibular n. (post. division) |
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What is Piriformis syndrome?
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Sciatic n. compression by piriformis m.
More frequently affects posterior division |
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What is the name of the anterior division of the sciatic nerve?
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tibial n.
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What is the name of the posterior division of the sciatic nerve?
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common fibular n
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What do the Superior gluteal A. & V. innervate?
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superficial gluteal muscles
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Inferior gluteal A. & V. supply what regions?
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deep gluteal muscles
superior portion of posterior thigh muscles |
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What vasculature supplies the posterior thigh?
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Perforating branches of
deep femoral a. & v. |