Thigh Leg and Foot 2 Flashcards
Where does the sartorius muscle originate and insert and what does it do?
Originates at ASIS and inserts at medial border of tibial tuberosity.
It flexes the thigh and leg
Where does the rectus femoris originate and insert and what is its action?
Origin: Acetabular groove and anterior inferior iliac spine
Inserts on tibial tuberosity
Flexes thigh and extends the leg
What are the muscles of the quadriceps?
Vastus medialis intermedius and lateralis
Rectus femoris (Only quadricaeps muscle to cross the hip joint)
Where does vastus intermedius originate?
Shaft of the femur
Where does vastus lateralus originate?
Greater trochanter and linea aspira of the femur
Where does vastus medialis originate?
Intertrochanteric line and linea aspira of femur
Where does the long head originate and insert and what does it do?
Originates at ischial tuberosity and inserts at fibula and lateral tibial condyle.
It acts to flex the leg and extend the thigh
Where do all the hamstring muscles originate?
At the ischial tuberosity
Which head of the hamstrings crosses both the hip and knee joint?
The lateral long head
Where does the short head originate and insert?
Linea aspira and inserts onto fibula and lateral tibial condyle
Which medial head is more fleshy?
The semimembranosis
Where does the semitendinosus originate and insert?
Originates at ischial tuberosity and inserts onto medial shaft of the tibia.
It flexes the leg and extends the thigh
Where does the semimembranosus originate and insert?
Originates at ischial tuberosity and inserts onto medial condyle of the tibia and it flexes leg and extends the thigh
What are the adductor muscles? (From most superior to most inferior insertion on the humerus)
Pectineus
Adductor brevis
Adductor longus
Where does the pectineus originate and insert and what does it do?
Origin: Pectineal surface
Insertion: Pectineal line of femur
Action: flexes and adducts the thigh
What do the adductor muscles do besides adducting the thigh?
They also flex the thigh (Except adductor magnus)
Where does adductor longus originate and insert and what does it do?
Origin: Pubic crest and symphysis
Insertion: Linea aspera of femur
Action: Flexes and adducts the thigh
Where does adductor brevis originate and insert?
Origin: Inferior ramus of pubis
Insertion: Linea aspera of femur
Action: Flexes and adducts the thigh
Where does adductor magnus originate and insert? What does it do?
Origin: Ischial tuberosity and ischio pubic ramus
Insertion: Linea aspira and adductor tubercle of femur
Action: Extends and adducts the thigh
What does adductor magnus create with its insertion points?
Adductor hiatus
Where does gracilis originate and insert?
Origin: Symphysis pubis
Insertion: Medial shaft of the tibia
Action: Flexes and adducts the thigh
What is adduction and abduction with regards to the foot?
Adduction towards midline of the foot
Abduction away from midline of the foot
Where does the tibialis anterior originate and insertion and action?
Origin: Lateral condyle and shaft of tibia
Insertion: 1st cuneiform and 1st metatarsal
Action: Dorsiflexion and inverts foot
What is the origin and insertion of extensor hallucis longus?
Origin: Shaft of fibula
Insertion: Distal phalanx of hallux
Action: Extends hallux
