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17 Cards in this Set
- Front
- Back
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The anterior leg muscles are all innervated by what nerve?
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Femoral
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Femoral triangle
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Laterally: sartorius
Medially: Adductor longus Floor: pectineus and iliopsoas Lat: NAVL: Med |
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Sartorius
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O: Ilium: Acetabular border
I: Tibia: medial shaft just below condyle N: Femoral A: Flexes leg Flexes and abducts thigh Rotates thigh laterally, thus crossing leg CA: Origin-Human: Anterior superior iliac spine |
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Rectus femoris
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O: Ilium: acetabular border
I: Patella and via patellar ligament into the tibial tuberosity N: Femoral A: Flexes thigh and extends leg CA: Origin-Human: Anterior inferior iliac spine Ilium: area just superior to acetabulum |
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Vastus Lateralis
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O: Greater trochanter: lateral aspect
I: Patella and via patellar ligament into tibial tuberosity N: Femoral A: Extends leg CA: Origin-Human and Ape: Femur: posterior surface along lateral lip of linea aspera |
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Vastus Medialis
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O: Femur: Intertrochanteric line and proximal 1/3 to 1/2 of the shaft
Linea aspera: medial lip I: Patella and via patellar ligament into the tibial tuberosity N: Femoral A: Extends leg CA: Origin-Human and Ape: Femur: medial aspect for entire length of shaft to medial supracondylar line |
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Vastus Intermedius
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O: Femur: anterior, lateral and medial surfaces of shaft
I: Patella and via patellar ligament into the tibial tuberosity N: Femoral A: Extends leg |
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Gracilis
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O: Pubic symphysis: medial margin
I: Tibia: anteromedial portion of proximal shaft N: Obturator A: Adducts thigh Aids flexing leg at the knee CA: |
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Pectineus
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O: Pubis: pectineal line
I: Femur: pectineal line N: Femoral A: Adducts and flexes thigh CA: Nerve-Human and Ape: Obturator and Femoral |
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Adductor longus
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O: Pubis: cranial border lateral to symphysis
I: Linea aspera: middle 1/3 of medial lip N: Obturator A: Adducts and flexes thigh |
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Adductor brevis
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O: Pubis: pubic angle and superior ramus
I: Linea aspera: proximal 1/4 N: Obturator A: Adducts and flexes thigh Rotates thigh laterally CA: Origin-Human: Pubis: inferior ramus |
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Adductor magnus
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O: Magnus: Inferior ischiopubic ramus and ischial tuberosity
Minimus: Ischium: caudoventral to obturator formaen I: Magnus: Femur: gluteal tuberosity, linea aspera and popliteal surface Minimus: Femur: upper 1/4 of shaft and lateral part of linea aspera N: Obturator A: Adducts, flexes, laterally rotates thigh |
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Obturator Externus
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O: Obturator foramen: lateral border and membrane
I: Femur: Intertrochanteric fossa N: Obturator A: Laterally rotates thigh |
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Biceps femoris
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Monkeys have only long head
O: Ischial tuberosity I: Tibia: anterior, proximal 1/2 of shaft by broad aponeurosis N: Flexores femoris A: Extends thigh at hip and flexes leg at knee |
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Semitendinosus
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O: Ischial tuberosity
I: Tibia: anterior surface just below tuberosity N: Flexores Femoris A: Extends hip and flexes knee CA: Nerve-Human: Nerve to hamstrings |
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Semimembranosus
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O: Ischial tuberosity
I: Proprius: Tibia: medial condyle Accesorius: Femur: shaft medial to linea aspera N: Flexores femoris A: Extends hip and flexes knee CA: Human: Only proprius present. Accessorius united with adductor magnus Nerve-Human: Nerve to hamstrings |
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Biceps Femoris Comparative Anatomy
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Origin-Human: Long Head: Ischial tuberosity
Short Head: linea aspera: middle 1/3 of lateral lip Insertion-Human: Long head: Fibula: head; Tibia: lateral condyle Short head: Tibia: lateral condyle Nerve-Human: Long head: Nerve to hamstrings (tibial division of Sciatic) Short head: Common peroneal (division of Sciatic) Action-Human: Extends hip, flexes knee, laterally rotates leg Origin-Ape: Long head: Ischial tuberosity Short head: linea aspera, lower 1/3 of lateral lip Insertion-Apes: Long head: Fibula head; Tibia: lateral condyle Short head: Fibula: head and proximal inch of shaft Nerve-Ape: Long Head: Flexores Femoris Short Head: Common peroneal Action-Ape: Extends hip, flexes knee, laterally rotates leg |
