Lab 7 Terms and Lesson Flashcards
Where do the muscles of the thigh generally insert?
Extend from one or more bones of the pelvis to insert on the femur
What is the location and action of the Ilioposoas: Iliacus and Psoas Major?
- Muscles of the anterior hip. The iliacus originates on the ilium and psoas major originates on the lower vertebrae. both muscles insert on the proximal femur
- Both muscles act to flex the thigh

What is the location and action of the piriformis?
- Deep muscle of the gluteal region. Originates on the anterior sacrum and inserts on the greater trochanter of the femur
- Laterally rotates and abducts the thigh

What is the location and action of the tensor fascia latae?
- Muscle of the lateral hip and thigh that originates on the iliac crest and inserts on the proximal lateral tibia via the iliotibial tract
- Flexes and abducts the thigh

What is the location and action of the gluteus maximus?
- Large superficial muscle of the posterior hip that originates on the ilium and sacru, and inserts on the gluteal tuberosity of the femur
- Extends and laterally rotates the thigh

What is the location and action of the gluteus medius?
- Deep to the gluteus maximus, the gluteus medius originates on the posterior ilium and inserts on the greater trochanter of the femur
- Abducts and medially rotates the thigh

What is the location and action of the gluteus minimus?
- Deep to the gluteus medius, the gluteus minimus originates on the posterior ilium and inserts on the greater trochanter of the femur
- Abducts and medially rotates the thigh

What is the location and action of the gracilis?
- Muscle of the medial thigh that originates on the pubis and inserts on the medial surface of the proximal tibia
- Adducts the thigh and flexes the leg

What is the location and action of the adductor magnus?
- A deep adductor muscle that originates on the ischium and pubis and inserts on the linea aspera of the femur
- Adducts and medially rotates the thigh

What is the location and action of the adductor longus?
- Originates on the pubis and inserts on the linea aspera of the femur
- Adducts, flexes, and medially rotates the thigh

What is the location and action of the adductor brevis?
- Originates on the pubis and inserts on the linea aspera of the femur
- Adducts, medially rotates and flexes the thigh

What are the four muscles that form the Quadriceps femoris group?
- Rectus femoris
- Vastus lateralis
- Vastus medialis
- Vastus intermediua

What is the location and action of the rectus femoris?
- Part of quadriceps femoris
- Muscle of the anterior thigh that originates on the anterior ilium and inserts on the tibial tuberosity vie the patellar ligament
- Flexes the thigh and extends the leg

What is the location and action of the vastus lateralis?
- Part of the quadriceps femoris
- Originates on the proximal femur and inserts on the tibial tuberosity
- Extends the leg

What is the location and action of the vastus medialis?
- Part of the quadriceps femoris
- Originates on the linea aspera of the femur and inserts on the tibial tuberosity
- Extends the leg

What is the location and action of the vastus intermedius?
- Part of the quadriceps femoris
- Originates on the anterior and lateral surfaces of the body of the femur and inserts on the tibial tuberosity
- Extends the leg

What is the location and action of the sartorius?
- Called the “tailo’s muscle” the sartorius is the longest muscle in the body. It originates on the ilium and inserts on the medial body of the tibia
- Flexes the leg, and flexes and laterally rotates the thigh

What are the three muscles in the hamstring group?
- Biceps femoris
- Semimembranosus
- Semitendinosus

What is the location and action of the biceps femoris?
- Part of the hamstrings group
- Lateral muscle of the posterior thigh. Its twp heads originate on the ischial tuberosity and linea aspera of the femur and inserts on the head of the fibula and lateral condyle of the tibia
- Flexes the leg and extends the thigh

What is the location and action of the semimembranosus?
- Part of the hamstring group
- Medial and deep muscle of the hamstrings group that originates on the ischial tuberosity and inserts on the medial concyle of the tibia
- Flexes the leg and extends the thigh

What is the location and action of the semitendinosus?
- Part of the hamstrings group
- Medial and superficial muscle of the hamstrings group that originates on the ischial tuberosity and inserts on the medial side of the body of the tibia
- Flexes the leg and extends the thigh

What are the two muscles of the triceps surae group?
-Gastrocnemius and soleus

What is the location and action of the gastrocnemius?
- Part of the triceps surae group
- Muscle of the posterior leg. Its two heads originate on the distal posterior femur and insert on the calcaneus vis the achilles tendon
- Plantar flexes the foot and flexes the leg

What is the location and action of the soleus?
- Part of the triceps surae group
- Deep to the gastrocnemius, this muscle originates on the head of the fibula and proximal medial tibia and inserts on the calcaneus via the achilles tendon
- Plantar flexes the foot



























