Appendicular Muscles (OIA) + Axial Muscles Flashcards
I. Muscles that move the pectoral girdle II. Muscles that move the humerus III. Gluteal region muscles that move the femur IV. Muscles that move the toes and feet. V. Rotator cuff muscles VI. Muscles that move the forearm VII. Muscles that move the wrist/digits VIII. Muscles that move the femur/tibia/fibula IX. Muscles that move the eyes, face, and head (109 cards)
MUSCLES THAT MOVE WRIST AND DIGITS
(Anterior compartment of the forearm)
Belongs to the superficial layer of the anterior forearm compartment
Flexor carpi radialis
Origin: Medial epicondyle of humerus
Insertion: Metacarpals
Action: Wrist flexion + abduction
MUSCLES THAT MOVE WRIST AND DIGITS
(Anterior compartment of the forearm)
Palmarus longus
Origin: medial condyle of humerus
Insertion: palmar aponeurosis
Action: wrist flexion
MUSCLES THAT MOVE WRIST AND DIGITS
Flexor carpi ulnaris
Origin: medial epicondyle of humerus
Insertion: carpal bones
Action: wrist flexion/adduction
MUSCLES THAT MOVE WRIST AND DIGITS
Posterior to “flexor carpi radialis” + “palmaris longus”
Flexor digitorum superficialis
Origin: medial epicondyle
Insertion: middle phalanges of digits 2-5
Action: finger flexion of MCP and PIP joint
MUSCLES THAT MOVE WRIST AND DIGITS
Posterior to “flexor carpi radius” + “flexor digitorum superficialis” + “flexor digitorum profundus”
Flexor pollicis longus
Origin: anterior surface of radius
Insertion: palmar surface of distal phalanx of thumb
Action: Thumb flexion using MCP and IP joint 1
MUSCLES THAT MOVE WRIST AND DIGITS
Posterior to “flexor carpi radialis” + “flexor digitorum superficialis”
Flexor digitorum profundus
Origin: proximal half of anterior surface of ulna, interosseous membrane
Insertion: palmar surfaces of distal phalanges of digits 2-5
Action: finger flexion of MCP and IP joints 2-5
MUSCLES THAT MOVE WRIST AND DIGITS
Extensor carpi radialis longus
Origin: lateral supercondylar ridge of humerus
Insertion: posterior aspect of base of metacarpal bone
Action: hand extension, hand abduction
MUSCLES THAT MOVE WRIST AND DIGITS
Posterior view of the forearm
Extensor digitorum
Origin: lateral epicondyle of humerus
Insertion: extensor expansions of digits 2-5
Action: MCP and IP joints 2-5 for finger extension
MUSCLES THAT MOVE WRIST AND DIGITS
Posterior view of the forearm
Extensor digiti minimi
Origin: lateral epicondyle of humerus
Insertion: extensor expansion of digit 5
Action: MCP joint 5 - finger extension
MUSCLES THAT MOVE WRIST AND DIGITS
Posterior view of forearm; posterior to “extensor digitorum” + “extensor digiti minimi” + “extensor carpi ulnaris”
Abductor pollicis longus
Origin: posterior surface of proximal radius, ulna, and interosseous membrane
Insertion: posterior aspect of base of MC bone
Action: hand extension and thumb abduction
MUSCLES THAT MOVE WRIST AND DIGITS
Posterior view of forearm; posterior to “extensor digitorum” + “abductor pollicis longus”
Extensor pollicis brevis
Origin: posterior surface of the distal third of the radius
Insertion: posterior aspects of base of proximal phalanx 1
Action: CMCP joint 1 - thumb extension
MUSCLES THAT MOVE THE FEET AND TOES
Tibalis anterior
Origin: lateral surface of tibia
Insertion: medial base of tarsal bones + MTB 1
Action: subtalar joint - foot inversion
MUSCLES THAT MOVE THE FEET AND TOES
Anterior view of leg; posterior to “extensor digitorum longus” + “tibialis anterior”
Extensor hallucis longus
Origin: middle third of medial surface of fibula + interosseous membrane
Insertion: dorsal aspect of phalanx belonging to big toe
Action: toe extension + foot dorsiflexion
MUSCLES THAT MOVE THE FEET AND TOES
Anterior view of leg; lateral to “extensor hallucis longus” + posterior to “tibialis anterior”
Extensor digitorum longus
Origin: proximal surface of fibula
Insertion: dorsal aspect of phalanges 2-5
Action: MTP and IP joint - toe extension + foot dorsiflexion + foot eversion
MUSCLES THAT MOVE THE FEET AND TOES
Lateral view of leg
Fibularis (peroneus) longus
Origin: head of fibula
Insertion: lateral aspect of tarsal bone
Action: foot plantar flexion, foot eversion
MUSCLES THAT MOVE THE FEET AND TOES
Lateral view of leg; posterior to “fibularis longus”
Fibularis (peroneus) brevis
Origin: Lateral aspect of middle surface of the fibula
Insertion: metatarsal bone
Action: foot plantar flexion + foot eversion
MUSCLES THAT MOVE THE FEET AND TOES
Posterior view of leg
Gastrocnemius
Origin: lateral head - surface of lateral condyle of the femur + medial head - medial femoral condyle
Insertion: posterior surface of calcaneus via Achille’s tendon
Action: plantar flexion + leg flexion
MUSCLES THAT MOVE THE FEET AND TOES
Posterior view of leg; posterior to “gastrocnemius”
Soleus
Origin: soleal line, medial border of tibia, head of fibula
Insertion: posterior surface of calcaneus via Achilles tendon
Action: plantar flexion
MUSCLES THAT MOVE THE FEET AND TOES
Posterior view of leg; posterior to “gastrocnemius” + “Achille’s tendon” + “soleus” + “flexor hallucis longus”
Tibialis posterior
Origin: posterior surface of tibia and fibula
Insertion: medial aspect of tarsal bones
Action: plantar flexion + foot inversion
MUSCLES THAT MOVE THE FEET AND TOES
Posterior view of leg; proximal end of posterior leg + posterio to “gastrocnemius”
Popliteus
Origin: lateral condyle of femur
Insertion: posterior surface of proximal tibia
Action: unlocks knee joint + stabilization
MUSCLES THAT MOVE THE FEET AND TOES
Posterior view of leg; medial + posterior to “gastrocnemius” + “Achille’s tendon”
Flexor digitorum longus
Origin: posterior surface of tibia
Insertion: solar aspect of bases of distal phalanges 2-5
Action: toe flexion + plantar flexion + foot inversion
MUSCLES THAT MOVE THE FEET AND TOES
Posterior view of leg; posterior to “gastrocnemius” + “Achilles tendon” + lateral to “flexor digitorum longus”
Flexor hallucis longus
Origin: distal 2/3 of posterior surface of fibula, interosseous membrane, posterior intermuscular septum of leg, fascia of tibialis muscle
Insertion: base of distal phalanx of great toe
Action: MTP and IP joint - toe flexion + foot plantar flexion + foot inversion
MUSCLES THAT MOVE THE FEMUR, TIBIA, AND FIBULA
Gracilis
Origin: anterior body of pubis, inferior pubic ramus, ischial ramus
Insertion: medial surface of proximal tibia
Action: thigh flexion, adduction + leg flexion and internal rotation of leg
MUSCLES THAT MOVE THE FEMUR, TIBIA, AND FIBULA
Rectus femoris
Origin: anterior inferior iliac spine + supra-acetabular groove
Insertion: tibial tuberosity via patellar ligament
Action: thigh flexion