Muscle Origin/Insertion/Action/Nerve Supply- Lecture Unit 3 Flashcards
Iliacus- O
Iliac Fossa
Sacrum
Iliacus- I
Lesser Trochanter/Femur
Psoas Major- O
Bodies and Transverse Processes/Lumbar Vertebrae
Psoas Major- I
Lesser Trochanter/Femur
Psoas Major- A
Flexion of femur at hip joint
Flexion of the vertebral column (right/left must work together)
Helps maintain posture (integrity of the vertebral column)
Psoas Major- NS
Femoral- L2, L3, L4
Psoas Minor- O
Bodies/ Lumbar Vertebrae
Psoas Minor- I
Iliopubic Eminence/ Pubis
Psoas Minor- A
Flexion of the pelvic bone (upward)
Psoas Minor- NS
L1 (sometimes L2)
Sartorius- O
Anterior Superior Iliac Spine (ASIS)
Sartorius- I
Superior Medial Shaft/Tibia
Sartorius- A
Flexion of the hip joint and knee joint (when both are carried out at the same time)
Abducts and Laterally rotates the femur
Medially rotates the leg
Sartorius- NS
Femoral Nerve- L2, L3, L4
Rectus Femoris- O
Anterior Inferior Iliac Spine (AIIS)
Acetabulum/ Pelvic Bone
Rectus Femoris- I
Base of the Patella
Rectus Femoris- A
Extend the leg at knee joint
Tonus plays role in strengthening knee joint
Flexes femur at hip joint
Rectus Femoris- NS
Femoral Nerve- L2, L3, L4
Vastus Lateralis- O
Greater Trochanter and Linea Aspera/ Femur
Vastus Lateralis- I
Base of the Patella
Vastus Lateralis- A
Extend the leg at knee joint
Tonus plays role in strengthening knee joint
Vastus Lateralis- NS
Femoral Nerve- L2, L3, L4
Vastus Medialis- O
Linea Aspera/ Femur
Vastus Medialis- I
Base of the Patella
Vastus Medialis- A
Extend the leg at knee joint
Tonus plays role in strengthening knee joint
Vastus Medialis- NS
Femoral Nerve- L2, L3, L4
Vastus Intermedius- O
Anterior-Lateral Aspect and Linea Aspera/ Femur
Vastus Intermedius- I
Base of the Patella
Vastus Intermedius- A
Extend the leg at knee joint
Tonus plays role in strengthening knee joint
Vastus Intermedius- NS
Femoral Nerve- L2, L3, L4
Tendon of Insertion of Quadriceps
Patellar Ligament
From Apex of Patella to the Tibia
Bundle of Muscle Fibers from deep Vastus Intermedius
Articulus Genu
Articulus Genu- A
Extend the leg at knee joint
Tonus plays role in strengthening knee joint
Retracts teh synovial membrane of the knee joint to help stabilize the knee
Gracilis- O
Ramus/ Ischium
Inferior Ramus/ Pubis
Gracilis- I
Superior Medial Shaft/Tibia
Gracilis- A
Adduction of Femur
Flexion of leg
Gracilis- NS
Obturator- L2, L3, L4
Pectineus- O
Superior Ramus (pubic pectin)/ Ramus
Pectineus- I
Pectineal Line/ Femur
Pectineus- A
Adducts Femur
Flexion at hip joint
Pectineus- NS
Femoral- L2, L3, L4
Obturator- L2, L3, L4
Adductor Longus- O
Superior Ramus/ Pubis
Adductor Longus- I
Linea Aspera/ Femur
Adductor Longus- A
Adduct Femur
Adductor Longus- NS
Obturator- L2, L3, L4
Adductor Brevis- O
Inferior Ramus/ Pubis
Adductor Brevis- I
Pectineal Line and Linea Aspera/ Femur
Adductor Brevis- A
Adduct Femur
Adductor Brevis- NS
Obturator- L2, L3, L4
Adductor Magnus- O
Rami/ Ischium and Pubis
Adductor Magnus- I
Linea Aspera and Adductor Tubercle/ Femur
Adductor Magnus- A
Adducts Femur
Extends Femur at Hip Joint
Adductor Magnus- NS
Obturator- L2, L3, L4
Tensor Fascia Lata- O
Crest of the Ilium
Tensor Fascia Lata- I
Iliotibial Tract
Tensor Fascia Lata- A
Flexes, Abducts, & Medially rotates Femur
Stabilize the knee (when weight bearing)
Tensor Fascia Lata- NS
Superior Gluteal (L4, L5, S1)
Gluteus Maximus- O
Posterior Gluteal Line/ Ilium
Sacrum and Coccyx
Posterior Ligaments of the Sacroiliac Joint
Gluteus Maximus- I
Gluteal Tuberosity/ Femur
Iliotibial Tract
Gluteus Maximus- A
Extends and Laterally rotates Femur
Stabilize the Pelvic Bone
Stabilize Knee Joint
Gluteus Maximus- NS
Inferior Gluteal- L5, S1, S2
Gluteus Medius- O
External Surface/ Ilium
Gluteus Medius- I
Greater Trochanter/ Femur
Gluteus Medius- A
Abducts Femur
Medially Rotates Femur
Keeps pelvic bone steady when opposite foot is raised.
Gluteus Medius- NS
Superior Gluteal (L4, L5, S1)
Gluteus Minimus- O
External Surface/ Ilium
Gluteus Minimus- I
Greater Trochanter/ Femur
Gluteus Minimus- A
Abducts Femur
Medially Rotates Femur
Keeps pelvic bone steady when opposite foot is raised.
Gluteus Minimus- NS
Superior Gluteal (L4, L5, S1)
Piriformis- O
Anterior Surface of the Sacrum
Piriformis- I
Greater Trochanter/ Femur
Piriformis- NS
S1 and S2
Piriformis- A
Lateral Rotation of the Femur
Superior Gamellus- O
Spine/ Ischium
Superior Gamellus- I
Greater Trochanter/ Femur
Superior Gamellus- A
Lateral Rotation/ Femur
Superior Gamellus- NS
L4, L5, S1, S2
Obturator Internus- O
Internal Surface of the Obturator Membrane
Obturator Internus- I
Greater Trochanter/ Femur
Obturator Internus- A
Lateral Rotation/ Femur
Obturator Internus- NS
L4, L5, S1, S2
Inferior Gamellus- O
Tuberosity/ Ischium
Inferior Gamellus- I
Greater Trochanter/ Femur
Inferior Gamellus- A
Lateral Rotation/ Femur
Inferior Gamellus- NS
L4, L5, S1, S2
Obturator Externus- O
External Surface of the Obturator Membrane
Obturator Externus- I
Trochanteric Fossa/ Femur
Obturator Externus- A
Lateral rotation/ Femur
Obturator Externus- NS
Obturator- L2, L3, L4
Quadratus Femoris- O
Tuberostiy/ Ischium
Quadratus Femoris- I
Quadrate Tubercle/ Femur
Quadratus Femoris- A
Lateral Rotation/ Femur
Quadratus Femoris- NS
L4, L5, S1, S2
Tendons of Insertion of the semitendinosus, gracilis, and sartorius
Pes Anserinus
Semitendinosus- O
Ischial Tuberostiy
Semitendinosus- I
Medial Condyle/ Tibia
Proximal Posterior Shaft/ Tibia
Semitendinosus- A
Flexion of the Leg at the Knee Joint
Stabilize the Hip Joint
Help with extension of the Femur
Medially rotate the leg (tibia)
Semitendinosus- NS
Sciatic Nerve- L4-S3
Semimembranosus- O
Ischial Tuberosity
Semimembranosus- A
Flexion of the Leg at the Knee Joint
Stabilize the Hip Joint
Help with extension of the Femur
Medially rotate the leg (tibia)
Semimembranosus- I
Medial Condyle/ Tibia
Semimembranosus- NS
Sciatic Nerve- L4-S3
Biceps Femoris- O
Long Head- Ischial Tuberosity
Short Head- Linea Aspera/ Femur
Biceps Femoris- I
Head/ Fibula
Lateral Condyle/ Tibia
Biceps Femoris- A
Flexion of the Leg at the Knee Joint
Laterally Rotate the Leg (tibia)
Long Head:
Stabilize the Hip Joint
Help with extension of the Femur
Biceps Femoris- NS
Sciatic Nerve- L4-S3