11.6 Appendicular Muscles of the Pelvic Girdle and Lower Limbs
5 min read•june 18, 2024
The pelvic girdle and muscles play crucial roles in hip and movement. From the powerful to the adductor group, these muscles enable walking, running, and other lower body actions. They work together to flex, extend, abduct, and rotate the thigh.
Leg and muscles control ankle and toe movements. Divided into , , and compartments, they enable actions like , , and toe . Understanding these muscles is key to grasping function and mobility.
Muscles of the Pelvic Girdle and Thigh
Muscles of pelvic girdle and lower limb
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Top images from around the web for Muscles of pelvic girdle and lower limb
The lower limbs | Human Anatomy and Physiology Lab (BSB 141) View original
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Muscles of the Lower Limb | Boundless Anatomy and Physiology View original
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The Pelvic Girdle and Pelvis | Anatomy and Physiology I View original
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The lower limbs | Human Anatomy and Physiology Lab (BSB 141) View original
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Muscles of the Lower Limb | Boundless Anatomy and Physiology View original
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consists of two muscles that flex the hip joint ( and )
originates from the transverse processes and bodies of lumbar vertebrae and inserts on the of
originates from the and inserts on the lesser trochanter of femur
is the largest muscle of the buttocks originates from the , , and and inserts on the of femur and
originates from the ilium and inserts on the of femur abducts and medially rotates the thigh
originates from the ilium and inserts on the of femur abducts and medially rotates the thigh
originates from the and inserts on the flexes, abducts, and medially rotates the thigh
originates from the pubic body and inserts on the of femur adducts and medially rotates the thigh
originates from the pubic body and inserts on the linea aspera of femur adducts and medially rotates the thigh
originates from the pubic ramus and ischial tuberosity and inserts on the linea aspera and of femur adducts and medially rotates the thigh
originates from the pubic body and inserts on the surface of proximal adducts the thigh and flexes the knee
originates from the of pubis and inserts on the pectineal line of femur adducts and flexes the thigh
Actions of thigh, leg, and foot muscles
Thigh muscles
consists of four muscles (, , , ) that extend the
consist of three muscles (, , ) that flex the knee and extend the hip
Adductors consist of five muscles (, , , , ) that adduct the thigh
Leg muscles
Anterior compartment contains muscles (, , ) that dorsiflex and invert the foot and extend the toes
Lateral compartment contains muscles ( and ) that evert and plantarflex the foot
Posterior compartment
muscles ( and forming the ) plantarflex the foot
muscles (, , ) plantarflex and invert the foot and flex the toes
Foot muscles
Intrinsic muscles enable fine movements of the toes and support the arches of the foot
Compartments in thigh and leg
Thigh compartments
Anterior compartment contains the quadriceps femoris and primarily extends the knee
Medial compartment contains the adductor muscles and pectineus and primarily adducts the thigh
Posterior compartment contains the hamstrings and primarily flexes the knee and extends the hip
Leg compartments
Anterior compartment contains muscles that dorsiflex and invert the foot and extend the toes (, , )
Lateral compartment contains muscles that evert and plantarflex the foot (, )
Posterior compartment
muscles plantarflex the foot (, )
Deep muscles plantarflex and invert the foot and flex the toes (, , )
Muscle Function and Interaction
and points determine the muscle's action and range of motion
by specific nerves controls muscle contraction and function
work in opposition to produce smooth, controlled movements
work together to assist the primary mover in an action
(slow-twitch and fast-twitch) influence endurance and power output
principles explain how muscles generate force and movement across joints
Muscles of the Leg and Foot
Muscles of pelvic girdle and lower limb
Tibialis anterior originates from the lateral condyle and upper 2/3 of lateral surface of tibia and inserts on the medial and base of 1st dorsiflexes and inverts the foot
Extensor digitorum longus originates from the lateral condyle of tibia and upper 3/4 of anterior surface of and inserts on the middle and distal phalanges of toes 2-5 extends the toes
Extensor hallucis longus originates from the middle 1/3 of anterior surface of fibula and and inserts on the distal of great toe extends the great toe
Fibularis longus originates from the head and upper 2/3 of lateral surface of fibula and inserts on the plantar surface of medial cuneiform and base of 1st metatarsal everts and plantarflexes the foot
Fibularis brevis originates from the lower 2/3 of lateral surface of fibula and inserts on the tuberosity on lateral side of base of 5th metatarsal everts and plantarflexes the foot
Gastrocnemius has two heads of (medial head from posterior surface of medial femoral condyle, lateral head from posterior surface of lateral femoral condyle) and inserts on the posterior surface of calcaneus via plantarflexes the foot
Soleus originates from the posterior surface of head and upper 1/3 of fibula and soleal line of tibia and inserts on the posterior surface of calcaneus via plantarflexes the foot
Tibialis posterior originates from the posterior surface of and adjacent surfaces of tibia and fibula and inserts on the tuberosity of , cuneiforms, , and bases of metatarsals 2-4 plantarflexes and inverts the foot
Flexor digitorum longus originates from the posterior surface of tibia below soleal line and inserts on the plantar surface of bases of distal phalanges of toes 2-5 flexes the toes
Flexor hallucis longus originates from the lower 2/3 of posterior surface of fibula and inserts on the plantar surface of base of distal phalanx of great toe flexes the great toe