Term
| Biceps Brachii, Long head |
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Definition
Origin: Supraglenoid tubricle of the scapula
Insertion: Radial tuberosity and into aponeurosis of the flexor muscles of lower arm
Action: Flexes and supinates the forearm;flexes the humerus
Innervation: Musculocutaneous nerve (C5, C6) |
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Term
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Definition
Origin: Anterior surface of the third through fifth rib
Insertion: coracoid process of the scapula
Action: With ris fixed, it dras the scapula froward and downward, and with scapula fixed, it draws the rib cage superiorly
innervation: Medial pectoral nerve (C8, T1) |
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Term
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Definition
Origin: Tip of the coracoid process of scapula
Insertion: Anteromedial surface of the middle of the humerus shaft opposite the deltoid tuberosity
Action: Flexion and adduction of the humerus
Innervation: Musculocutaneous |
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Term
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Definition
Origin: Distal jalf of the anterior surface of the humerus
Insertion: Coronoid process and tuberosity of ulna
Action: Flexes the elbow
Innervation: Musculocutaneous and radial nerves (C5,C6) |
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Term
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Definition
Origin: Proximal two thrds of the lateral supracondylar ridge of humerus
Insertion: Lateral side of the base of the styloid process of the radius
Action: Flexes the elbow; assists in pronation and supination of the forearm to the midposition
Innervation: Radial nerve (C5,C6) |
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Term
| Triceps brachii, long head |
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Definition
Origin: infraglenoid tubercle of the scapula
Insertion: Posterior surface of the olecranon process of the ulna
Action: Extends the forearm and the tendon of the long head helps stabilize the shoulder joint and extends the humerus
Innervation: Radial nerve (C7,C8) |
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Term
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Definition
Origin: Humeral head-just above the medial epicondyle of the humerus
Ulnar head-medial side of the coronoid process of the ulna
Insertion: Middle of the lateral surface of radius
Action: Pronates the forearm and assists in flexing the elbow joint
Innervation: Median nerve (C6,C7) |
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Term
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Definition
Origin: Medial side of the anterior surface of the distal one-fourth of the ulna
Insertion: Lateral side of the distal one-fourth of the radius
Action: pronates the forearm
Innervation: Anterior inerosseous branch of the median nerve (C8,T1) |
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Term
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Definition
Origin: Flexor retinaculum and hook of the hamate bone
Insertion: Medial side of base of proximal phalanx of the fifth digit
Action: Flexes fifth finger at metacarpophalangeal joint
Innervation: Ulnar nerve (C8,T1) |
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Term
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Definition
Origin: Retinaculum (transverse carpal ligament) and trapezium bone
Insertion: Anterior surface on the radial side of the first metacarpal bone
Action: Rotates thumb into opposition with fingers, acts together with other muscles of the thenar eminence to oppose thumb to finger
Innervation: Median nerve (C6,C7) |
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Term
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Definition
Origin: Anterior head- anterior inferior iliac spine
Posterior head-upper margin of the acetabulum
insertion: patella and by the patella ligament to the tibial tuberosity
Action: extends the leg at the knee and flexes the thigh at the hip joint
Innervation: Femoral nerve (L2-L4) |
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Term
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Definition
Origin: Lower half of intertrochanteric line, linea aspera, medial supracondylar line, and medial intermuscular septum
Insertion: Medial border of the patella and then by the patella ligament to the tibial tuberosity
Action: Extends the leg at the knee join and draws the patella medially
Innervation: Femoral nerve (L2-L4) |
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Term
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Definition
Origin: Anterior body of pubis
Insertion: Medial one third of medial lip of lnea aspera of femur
Action: Adducts and flexes thigh; assists in medial rotation
Innervation: Obturator nerve (L3,L4) |
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Term
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Definition
| Origin: Pectineal line on superior ramus of pubis |
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Term
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Definition
| Insertion: From lesser trochanter to linea aspera of femur |
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Term
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Definition
| Action: Flexes femur at hip and assists in adduction of femur at hip |
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Term
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Definition
| Innervation: Femoral nerve (L2-L4) |
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Term
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Definition
| Origin: Lateral condyle and proximal one half of the lateral surface of the tibia and the interosseous membrane |
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Term
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Definition
| Insertion: Medial plantar surface of the first cuneiform bone and the base of the first metatarsal bone |
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Term
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Definition
| Action: Dorsifexion of the foot at the ankle joint ad inversion of the foot |
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Term
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Definition
| Innervation: Deep peroneal nerve (L4-S1) |
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Term
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Definition
| Origin: Ischial tuberosity |
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Term
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Definition
| Insertion: Upper medial surface of the shaft of the tibia |
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Term
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Definition
| Action: Flexes and slightly medially rotates leg at knee joint and extends the thigh at the hip joint |
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Term
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Definition
| Innervation: Tibial portion of sciatic nerve (L5-S2) |
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Term
| Peroneus (fibularis) Brevis |
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Definition
| Origin: lower two thirds of lateral surface of the fibula |
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Term
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Definition
| Insertion: Lateral side of the base of the fifth metatarsal bone |
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Term
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Definition
| Action: plantar flexion and eversion of the foot |
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Term
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Definition
| Innervation: superficial peroneal nerve (L4-S1) |
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Term
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Definition
Origin: Medial head- upper posterior part of medial condyle of femur
Lateral head- supracondylar lie and lateral condyle of the femur |
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Term
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Definition
| Insertion: Calcaneous via the Achilles tendon |
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Term
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Definition
| Action: Plantar flexion of the ankle joint and assists in flexion of the knee joint |
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Term
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Definition
| Innervation: Tibial nerve (S1-S2) |
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Term
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Definition
| Origin: Lateral part of posterior surface of tibia, interosseous membrane and proximal half of posterior surface of fibula |
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Term
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Definition
| Insertion: Tuberosity of navicular bone, cuboid, cuneiforms, second, third, and fourth metatarsals and calcaneus |
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Term
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Definition
| Action: Plantar flexion and inversion of the foot |
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Term
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Definition
| Origin: Tuberosity of calcaneous, flexor retinaculum, and plantar aponerurosis |
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Term
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Definition
| Insertion: Medial side of base of proximal phalanx of big toe |
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Term
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Definition
| Action: Abducts and assists in flexion at the metatarsophalangeal joint of the big toe |
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Term
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Definition
| Innervation: Medial plantar nerve (L4,L5) |
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Term
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Definition
| Origin: Tendons of the flexor digitorum longus |
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Term
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Definition
| insertion: Dorsal surfaces of the distal phalanges |
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Term
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Definition
| Action: Flexion of second through fifth toes at the metatarsophalangeal joint |
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Term
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Definition
| Innervation: First lumbricalis-medial plantar nerve (L4,L5) |
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Term
| Flexor digiti minimi brevis |
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Definition
| Origin:Base of the fifth metatarsal bone and sheath of the fibularis longus tendon |
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Term
| Flexor digiti minimi brevis |
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Definition
| Insertion: Lateral side of base of the proximal phalanx of the fifth toe |
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Term
| Flexor digiti minimi brevis |
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Definition
| Action: Flexion of the proximal phalanx of the fifth toe |
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Term
| Flexor digiti minimi brevis |
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Definition
| Innervation: Lateral plantar nerve (S1,S2) |
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