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Origin Splenius
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Insertion Splenius
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MusclesT1
muscles
| Question | Answer |
|---|---|
| Origin Splenius | Spinous process of inferior cervical and superior thoracic vertebrae |
| Insertion Splenius | Mastoid process, occipital bone, and transverse processes of superior cervical verterbrae |
| Action Splenius | Extension of head and neck; lateral flexion and rotation of the head and neck |
| Orgin Transversopinalis | Transverse processes of vertebrae |
| Insertion Transversopinalis | Spinous process of more superior vertebrae |
| Action Transversospinalis | Extension of vertebral column; rotation of vertebral column; stablilizes the vertebral cloumn |
| Orgin Trapezius | Posterior surface of occipital bone; ligamentum nuchae; spinous process of thoracic vertebrae |
| Insertion Trapezius | Lateral third of clavical; acromion process; spine of scapula |
| Action Trapezius | Superior Fibers: elevate scapulaMiddle: Retract scapulaInferior: depress scapula |
| Orgin Rhomboid major and minor | Minor: Ligamentum nuchae; spinous process of vertebrae C7 and T1Major: spinous process of T2- T5 |
| Insertion Rhomboid major and minor | Medial border of scapula |
| Action of Rhomboid major and minor | Retracts scapula: Elevates scapula; acts with pectoralis minor or inferiorly rotate scapula |
| Orgin Levator scapulae | Transverse process of C1- C4 |
| Insertion Levator scapulae | Medial border of scapula near superior angle |
| Action Levator scapulae | Elevates scapula; acts with pectoralis minor or inferiorly rotate scapula |
| Orgin Serratus anterior | External surfaces of ribs 1-8 |
| Insertion Serratus anterior | Medial border of scapula |
| Action Serratus anterior | Protraction and superior rotation of scapula; holds scapula against thoracic wall |
| Orgin Pectoralis minor | External surfaces of ribs 3-5 |
| Insertion Pectoralis minor | Coracoid process of scapula |
| Action Pectoralis minor | Depression and inferior rotation of scapula |
| Orgin deltoid | Lateral third of clavical; acromion process; spine of scapula |
| Insertion deltoid | Deltoid tuberosity of humerus |
| Action Deltoid | Anterior fibers: medial rotation and flexion of arm Middle: abduction of armPosterior: lateral rotation and extension of arm |
| Orgin Supraspinatus | Supraspinous fossa of scapula |
| Insertion Supraspinatus | Greater tubercle of humerus |
| Action of Supraspinatus | Abduction of arm |
| Orgin Infraspinatus | Infraspinous fossa of scapula |
| Insertion Infraspinatus | Greater Tubercle of humerus |
| Action Infraspinatus | Lateral rotation of arm |
| Orgin Teres minor | Lateral border of scapula |
| Insertion Teres minor | Greater Tubercle of Humerus |
| Action Teres minor | Lateral rotation of arm |
| Orgin teres major | Scapula, near inferior angle |
| Insertion teres major | Medial lip of intertubercular groove |
| Action teres major | Extension, adduction and medial rotation of arm |
| Orgin latissimus dorsi | Spinous process of vertebrae T6-T12; thoracolumbar fascia; iliac crest; inferior three ribs |
| Insertion latissimus dorsi | Intertubercular groove of humerus |
| Action latissimus dorsi | Extension, adduction and medial rotation of arm |
| Orgin Subscapularis | Subscapular fossa of scapula |
| Insertion Subscapularis | Lesser tubercle of humerus |
| Action subscapularis | Adduction and medial rotation of arm |
| Orgin Pectoralis major | Medial half of clavical; sternum; costal cartilages of ribs 1-6 |
| Insertion Pectoralis major | Lateral lip of intertubercular groove of humerus |
| Action Pectoralis major | Flexion, medial rotation and adduction of the arm |
| orgin Biceps Brachii | Long head; superior margin of gelnoid fossa of scapula |
| Insertion Biceps Brachii | Radial tuberosity of radius; fascia of medial forearm via bicipital aponeurosis |
| Action Biceps Brachii | Flexion and supination of forearm; flexion of arm |
| Orgin Coracobrachialis | Coracoid Process of scapula |
| Insertion Coracobrachialis | Medial surface of humerus |
| Action Coracobrachilalis | Flexion and adduction of arm |
| Orgin Brachialis | Anterior surface of humerus |
| Insertion Brachialis | Coronoid process of ulna |
| Action Brachialis | Flexion of forearm |
| Orgin Triceps Brachii | Long head: inferior margin of glenoid fossa of scapulaLateral: posterior surface of humerusMedial: Posterior surface of humerus, inferior to origin of lateral head |
| Insertion triceps brachii | Olecranon process of ulna |
| Action Triceps brachii | Extension of forearm; long heads extends and adducts arm |
| Orgin Flexor carpi radialis | Medial epicondyle of humerus |
| Insertion Flexor carpi radialis | Base of metacarpal of the second digit |
| Action Flexor carpi radialis | Flexion and abduction of wrist |
| Orgin Flexor carpi ulnaris | Medial epicondyle of humerus; olecranon process of radius |
| Insertion Flexor carpi ulnaris | Medial carpal bones; metacarpal of fifth digit |
| Action Flexor carpi ulnaris | Flexion and adduction of the wrist |
| Orgin Pronator quadratus | Anterior surface of distal ulna |
| Insertion Pronator quadratus | Anterior surface of distal radius |
| Action Pronator quadratus | Pronation of forearm |
| Orgin Brachioradialis | Lateral supracondylar ridge of humerus |
| Insertion Brachioradialis | Lateral surface of distal radius |
| Action Brachioradialis | Flexion of forearm |
| Orgin Gluteus maximus | Lateral surface of ilium; dorsal surface of sacrum and coccyx |
| Insertion Gluteus maximus | Iliotibial tract; gluteal tuberosity of femur |
| Action Gluteus maximus | Extension and lateral rotation of thigh; powerful extensor for climbing and running; stabilizes pelvis and thigh while standing erect |
| Orgin gluteus medius | Lateral surface of ilium |
| Insertion Gluetus medius | Greater trochanter of femus, lateral surface |
| Action Gluteus medius | Abduction and medial rotation of thigh, steadies the pelvis during walking |
| Orgin Gluteus minimus | Lateral surface of ilium, inferior to origin of gluteus medius |
| Insertion Gluteus minimus | Greater trochanter of femur, anterior surface |
| Action Gluteus minimus | Abduction and medial rotation of thigh; steadies the pelvis during walking |
| Orgin psoas major | Bodies of vertebrae of T12-L5 |
| Insertion psoas major | Lesser trochanter of femur |
| Action psoas major | Flexion of thigh |
| Orgin Tensor fasciae latae | Anterior superior iliac crest |
| Insertion Tensor fasciae latae | Iliotibial tract |
| Action Tensor fasciae latae | Flexes, abducts and medially rotates thigh; steadies trunk of thigh while standing |
| Orgin Quadriceps femoris:Rectus femoris | Anterior inferior iliac spine of ilium |
| Insertion Quadriceps femoris:Rectus femoris | Patella by the quadriceps tendon and tibial tuberosity by the patellar ligament |
| Action Quadriceps femoris:Rectus femoris | Extension of leg; flexion of thigh |
| Orgin Quadricpes femoris:Vastus lateralis | Greater trochanter and lateral lip of linea aspera of femur |
| Insertion Quadricpes femoris:Vastus lateralis | Patella by the quadriceps tendon and tibial tuberosity by the patellar ligament |
| Action Quadricpes femoris:Vastus lateralis | Extension of leg |
| Orgin Quadriceps femoris: Vastus medialis | Intertrochanteric line and medial lip of linea apsera |
| Insertion Quadriceps femoris: Vastus medialis | Patella by the quadriceps tendon and tibial tuberosity by the patellar ligament |
| Action Quadriceps femoris: Vastus medialis | Extension of leg |
| Orgin Quadriceps femoris:Vastus intermedius | Anterior and lateral surfaces of femoral shaft |
| Insertion Quadriceps femoris:Vastus intermedius | Patella by the quadriceps tendon and tibial tuberosity by the patellar ligament |
| Action Quadriceps femoris:Vastus intermedius | extension of leg |
| orgin Sartorius | Anterior superior iliac spine of ilium |
| Insertion Sartorius | Medial surface of tibia, near the knee joint |
| Action sartorius | Flexion, abduction and lateral rotation of thigh; flexion of leg |
| Orgin adductor longus | Body of pubic bone |
| Insertion adductor longus | Linea aspera of femur |
| Action addcutor longus | Adduction and flexion of thigh |
| Orgin adductor brevis | Body and inferior ramus of pubic bone |
| Insertion adductor brevis | Pectineal line and linea aspera of femur |
| Action adductor brevis | Adduction and flexion of thigh |
| Orgin gracilis | Body and inferior ramus of pubic bone |
| Insertion gracilis | Medial surface of tibia, near the knee joint |
| Action gracilis | Adduction and thigh; flexion and medial rotation of leg |
| Orgin pectineus | Superior ramus of pubic bone |
| Insertion pectineus | Pectineal line of femur |
| Action pectineus | Adduction and flexion of thigh |
| Orgin biceps femoris | Long head: Ischial tuberosity of ischiumShort head: linea aspera and lateral supracondylar line of femur |
| Insertion biceps femoris | Lateral side of head of fibula |
| Action bicepts femoris | Extension of thigh, flexion of leg |
| Orgin semimembranosus | Ischial tuberosity of ischium |
| Insertion semimembranosus | Posterior surface of medial condyle of tibia |
| Action semimembranosus | Extension of thigh, flexion of leg |
| Orgin Semitendinosus | Ischial tuberosity of ischium |
| Insertion semitendinosus | Medial surface of tibia, near the knee joint |
| Action semiteninosis | Extension of thigh, flexion of leg |
Created by:
Mollie28
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