Muscles
Which lower extremity muscle has two heads and attaches to the calcaneous?
Gastrocnemius
Name the largest nerve in the lower body
Sciatic nerve
Name the origin and insertion of rectus femoris
Origin: AIIS (anterior inferior iliac spine)
Insertion: Patella
Which DEEP muscle plantarflexed the ankle and steadies leg on the foot during standing.
Hint: Does not affect the knee joint
Soleus
What is the largest bone in the body?
Femur
Name all for quad muscles
- Vastus lateralis
- vastus medialis
- vastus intermedius
- rectus femoris
What nerve inervates obturator externus?
Obturator nerve
What muscle originates on AIIS (anterior superior iliac spine) and inserts onto the medial proximal tibia, contributing to the pes anserine?
Sartorius
Name the muscle that is the strongest dorsal flexor
Tibialis anterior
Name the largest bony prominence of the femur
Greater trochanter
Which knee muscle is in charge of unlocking the knee by laterally rotating the femur on the tibia when weight bearing?
Popliteus
What nerve innervates flexor digitorum longus, flexor hallucis longus, tibialis posterior?
Tibial nerve
Name the origin of gluteus maximus
- sacrum and coccyx
- sacrotuberous ligament
Name two actions of pectineus
- Flexes thigh
- Adducts thigh- Stabilizes hip joint
How many fused vertebrae are in the sacrum?
5
Which muscle group was formerly referred to as the peroneus musculature?
Fibularis musculature
What nerve innervates tibialis anterior, extensor digitorum longus, extensor hallucis longus, fibularis tertius?
Deeb fibular nerve
Which muscle originates on the medial process of calcaneal tuberosity and inserts on the base of the proximal phalanx of the great toe?
Abductor hallucis
Name 2 actions of the gluteus medius
- abducts thigh
- medially rotates thigh
- flexes thigh (assists)
- extends thigh (assists)
Name the broad and thin plane of fibrous tissue that separates the tibia and the fibula
Interosseous membrane
Name the 3 adductor muscles
- Adductor brevis
- Adductor longus
- Adductor magnus
Femoral nerve
Which muscle orginates on the ischial tuberosity and inserts on the intertrochanteric crest (quadrate tubercle of the femur)?
Which foot muscle straightens the pull of the flexor digitorum longus tendons assisting with toe flexion?
Quadratus plantae
Name the 7 bones of the hindfoot.
- Medial cuneiform
- Intermediate cuneiform
- lateral cuneiform
- cuboid
- navicular
- calcaneus
- talus