Anatomy Block 3 Flashcards
What muscle(s) is/are innervated by the femoral nerve?
Iliopsoas, rectus femoris, sartorius
Vastus lateralis, intermedius, medialis
Pectineus
What are the origin and insertion of the iliopsoas muscle?
Origin: iliac fossa & lumbar vertebrae
Insertion: lesser trochanter of femur
What is the insertion of the rectus femoris muscle?
tibial tuberosity via patella
What are the origin and insertion of the sartorius muscle?
Origin: anterior superior iliac spine
Insertion: medial to tibial tuberosity
What are the origin and insertion of the gluteus medius/minimus muscle?
Origin: external surface of ilium
Insertion: greater trochanter of femur
What are the origin and insertion of the tensor fasciae latae muscle?
Origin: anterior iliac crest, anterior superior iliac spine
Insertion: lateral condyle of tibia via iliotibial tract
What are the origin and insertion of the gluteus maximus muscle?
Origin: ilium and sacrum
Insertion: iliotibial tract and gluteal tuberosity
What are the origin and insertion of the semitendinosus muscle?
Origin: ischial tuberosity
Insertion: medial surface of proximal end of tibia
What are the origin and insertion of the semimembranosus muscle?
Origin: ischial tuberosity
Insertion: medial condyle of tibia
What are the origin and insertion of the long head of the biceps femoris muscle?
Origin: ischial tuberosity
Insertion: head of fibula
What are the origin and insertion of the short head of the biceps femoris muscle?
Origin: linea aspera of femur
Insertion: head of fibula
What are the origin and insertion of the adductor magnus muscle?
Origin: inferior pubic ramus, ischial ramus; ischial tuberosity
Insertion: linea aspera & adductor tubercle of femur
What are the origin and insertion of the gracilis muscle?
Origin: inferior ramus of pubis
Insertion: medial to tibial tuberosity
What are the origin and insertion of the piriformis muscle?
Origin: anterior surface of sacrum
Insertion: greater trochanter of femur
What is the insertion of the vastus lateralis, medialis, and intermedius muscles?
tibial tuberosity via patella
What is the insertion of the fibularis longus muscle?
base of 1st metatarsal and medial cuneiform
What is the insertion of the fibularis brevis muscle?
tuberosity of 5th metatarsal
What are the origin and insertion of the soleus muscle?
Origin: fibular head & soleal line of tibia
Insertion: calcaneus
What are the origin and insertion of the gastrocnemius muscle?
Origin: medial and lateral condyles of femur
Insertion: calcaneus via Achilles (tendocalcaneous)
What is the origin of the lumbricals 2-4?
tendons of flexor digitorum longus
What is the insertion of the quadratus plantae muscle?
flexor digitorum longus tendon
What is the insertion of the fibularis tertius muscle?
dorsum of base of 5th metatarsal
What is the action of the iliopsoas muscle?
flexes thigh at hip
What is the action of the rectus femoris muscle?
extends leg at knee & flexes thigh at hip
What is the action of the sartorius muscle?
flexes, abducts, and laterally rotates thigh; flexes leg at knee
What is the action of the gluteus medius/minimus muscle?
abducts & medially rotates thigh
What is the action of the tensor fasciae latae muscle?
abducts & medially rotates thigh
What is the action of the gluteus maximus muscle?
extends and laterally rotates thigh
What is the action of the semitendinosus muscle?
extends thigh, flexes and medially rotates leg
What is the action of the semimembranosus muscle?
extends thigh, flexes and medially rotates leg
What is the action of the long head of the biceps femoris muscle?
extends thigh, flexes and laterally rotates leg
What is the action of the short head of the biceps femoris muscle?
flexes and laterally rotates leg
What is the action of the adductor magnus muscle?
extends & adducts thigh at hip
What is the action of the adductor longus muscle?
adducts thigh at hip
What is the action of the adductor brevis muscle?
adducts thigh at hip
What is the action of the pectineus muscle?
adducts thigh at hip
What is the action of the gracilis muscle?
adducts & medially rotates thigh at hip; flexes leg at knee
What is the action of the piriformis muscle?
laterally rotates thigh