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Muscles 2
Muscles of the Shoulder, Abs, Arms, etc.
127
Biology
12th Grade
03/10/2012

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Term
What is the origin of Deltoid?
Definition
Clavicle, acromion, and spine of scapula
Term
What is the insertion of Deltoid?
Definition
Deltoid tuberosity
Term
What is the action of Deltoid?
Definition
Abducts, flexes, extends medially, and laterally rotates arm
Term
What is the origin of Supraspinatus?
Definition
Supraspinous fossa
Term
What is the insertion of Supraspinatus?
Definition
Greater tubercle of humerus
Term
What is the action of Supraspinatus?
Definition
Abducts arm, stabilizes shoulder
Term
What is the origin of Infraspinatus?
Definition
Infraspinous fossa
Term
What is the insertion of Infraspinatus?
Definition
Greater tubercle of humerous
Term
What is the action of Infraspinatus?
Definition
Extends, laterally rotates arm, stabilizes shoulder
Term
What is the origin of Teres Minor?
Definition
Axillary boder of scapula
Term
What is the insertion of Teres Minor?
Definition
Greater tubercle of humerous
Term
What is the action of Teres Minor?
Definition
Extends, laterally rotates, adducts arm, stabilizes shoulder
Term
What is the origin of Subscapularis?
Definition
Subscapularis fossa
Term
What is the insertion of Subscapularis?
Definition
Lesser tubercle of humerus
Term
What is the action of Subscapularis?
Definition
Extends, medially rotates arm, stabilizes shoulder
Term
What is the origin of Rhomboideus Major?
Definition
T1-T4
Term
What is the insertion of Rhomboideus Major?
Definition
Inferior, medial border of scapula
Term
What is the action of Rhomboideus Major?
Definition
Adducts scapula
Term
What is the origin of Teres Major?
Definition
Axillary border of scapula
Term
What is the insertion of Teres Major?
Definition
Crest of lesser tubercle of humerus
Term
What is the action of Teres Major?
Definition
Extends, adducts, medially rotates arm
Term
What is the origin of Rhomboideus Minor?
Definition
Ligamentum nuchae, C6-C7
Term
What is the insertion of Rhomboideus Minor?
Definition
Superior, medial border of scapula
Term
What is the action of Rhomboideus Minor?
Definition
Adducts scapula
Term
What is the origin of Erector Spinae: (Spinalis, Longissimus, Ilocostalis) And Multifidus?
Definition
Vertebral column, ilium sacrum, ribs
Term
What is the insertion of Erector Spinae: (Spinalis, Longissimus, Ilocostalis) And Multifidus?
Definition
Ribs, vertebral column, occipital bone, temporal bone
Term
What is the action of Erector Spinae: (Spinalis, Longissimus, Ilocostalis) And Multifidus?
Definition
Rotates and extends vertebral column and head
Term
What is the origin of Pectoralis Major?
Definition
Clavicle, sternum, and ribs 1-7
Term
What is the insertion of Pectoralis Major?
Definition
Crest of greater tubercle of humerus 
Term
What is the action of Pectoralis Major?
Definition
Adducts, flexes, and rotates arm medially
Term
What is the origin of Quadratus Lumborum?
Definition
Iliac crest, lower lumbar vertebrae 
Term
What is the insertion of Quadratus Lumborum?
Definition
T12, L1-L4, rib 12
Term
What is the action of Quadratus Lumborum?
Definition
Abducts vertebral column, depresses rib 12
Term
What is the origin of Serratus Anterior?
Definition
Ribs 1-8 or 9
Term
What is the insertion of Serratus Anterior?
Definition
Vertebral border of scapula
Term
What is the action of Serratus Anterior?
Definition
Abducts scapula
Term
What is the origin of Pectoralis Minor?
Definition
Ribs 3-5
Term
What is the insertion of Pectoralis Minor?
Definition
Coracoid process of scapula
Term
What is the action of Pectoralis Minor?
Definition
Depresses scapula, elevates ribs 3-5
Term
What is the origin of Internal Intercostalis?
Definition
Inferior margin of ribs 1-11
Term
What is the insertion of Internal Intercostalis?
Definition
Superior margin of ribs 2-12
Term
What is the action of Internal Intercostalis?
Definition
Depresses ribs (decreases thoracic volume)
Term
What is the origin of External Intercostalis?
Definition
Inferior margin of ribs 1-11
Term
What is the insertion of External Intercostalis?
Definition
Superior margin of ribs 2-12
Term
What is the action of External Intercostalis?
Definition
Elevates ribs (increases thoracic volume)
Term
What is the origin of Rectus Abdominis?
Definition
Symphysis pubis and pubic crest 
Term
What is the insertion of Rectus Abdominis?
Definition
Cartilages of ribs 5-7 and xiphoid process
Term
What is the action of Rectus Abdominis?
Definition
Flexes lumbar vertebrae, compresses abdomen 
Term
What is the origin of Diaphragm?
Definition
Xiphoid process, ribs 10-12, lumbar vertebrae 
Term
What is the insertion of Diaphragm?
Definition
Central tendon
Term
What is the action of Diaphragm?
Definition
Inspiration
Term
What is the origin of Internal Oblique?
Definition
Inguinal ligament, iliac crest
Term
What is the insertion of Internal Oblique?
Definition
Linea alba, inferior 4 ribs
Term
What is the action of Internal Oblique?
Definition
Compresses abdomen, laterally rotates trunk
Term
What is the origin of External Oblique?
Definition
Ribs 5-12
Term
What is the insertion of External Oblique?
Definition
Iliac crest, inguinal ligament, linea alba
Term
What is the action of External Oblique?
Definition
Compresses abdomen, laterally rotates trunk
Term
What is the origin of Biceps Brachii?
Definition
Supraglenoid tubercle, coracoid process
Term
What is the insertion of Biceps Brachii?
Definition
Radial tuberosity 
Term
What is the action of Biceps Brachii?
Definition
Flexes arm, flexes and laterally rotates forearm (supinates hand)
Term
What is the orign of Transversus Abdominis?
Definition
Iliac crest, inguinal ligament, ribs 7-12
Term
What is the insertion of Transversus Abdominis?
Definition
Linea alba, pubis
Term
What is the action of Transversus Abdominis?
Definition
Compresses abdomen, laterally rotates trunk
Term
What is the origin of Coracobrachialis?
Definition
Coracoid process
Term
What is the insertion of Coracobrachialis?
Definition
Medial shaft of humerus
Term
What is the action of Coracobrachialis?
Definition
Adducts and flexes arm
Term
What is the origin of Triceps Brachii?
Definition
Infraglenoid tuberosity of scapula, posterior surface of humerus
Term
What is the insertion of Triceps Brachii?
Definition
Olecranon process 
Term
What is the action of Triceps Brachii?
Definition
Adducts arm, extends arm and forearm
Term
What is the origin of Brachioradialis?
Definition
Lateral supracondylar ridge of humerus
Term
What is the insertion of Brachioradialis?
Definition
Styloid process of radius
Term
What is the action of Brachioradialis?
Definition
Flexes forearm
Term
What is the origin of Brachialis?
Definition
Anterior, distal humerus
Term
What is the insertion of Brachialis?
Definition
Coronoid process of ulna
Term
What is the action of Brachialis?
Definition
Flexes forearm
Term
What is the origin of Pronator Teres?
Definition
Medial epicondyle of humerus, coronoid process of ulna
Term
What is the insertion of Pronator Teres?
Definition
Lateral radius
Term
What is the action of Pronator Teres?
Definition
Flexes and medially rotates forearm (pronates hand)
Term
What is the origin of Supinator?
Definition
Lateral epicondyle of humerus, proximal ulna
Term
What is the insertion of Supinator?
Definition
Proximal shaft of radius
Term
What is the action of Supinator?
Definition
Supinates hand
Term
What is the origin of Palmaris Longus?
Definition
Medial epicondyle of humerus
Term
What is the insertion of Palmaris Longus?
Definition
Palmar aponeurosis 
Term
What is the action of Palmaris Longus?
Definition
Flexes hand
Term
What is the origin of Pronator Quadratus?
Definition
Anterior, distal ulna
Term
What is the insertion of Pronator Quadratus?
Definition
Anterior, distal radius
Term
What is the action of Pronator Quadratus?
Definition
Medially rotates forearm (pronates hand)
Term
What is the origin of Flexor Carpi Ulnaris?
Definition
Medial epicondyle of humerus olecranon and proximal ulna
Term
What is the insertion of Flexor Carpi Ulnaris?
Definition
Pisiform, hamate, metacarpal 5
Term
What is the action of Flexor Carpi Ulnaris?
Definition
Flexes and adducts hand
Term
What is the origin of Flexor Carpi Radialis?
Definition
Medial epicondyle of humerus
Term
What is the insertion of Flexor Carpi Radialis?
Definition
Metacarpals 2 and 3
Term
What is the action of Flexor Carpi Radialis?
Definition
Flexes and abducts hand
Term
What is the origin of Flexor Digitorum Profundus?
Definition
Proximal ulna, interosseus membrane
Term
What is the insertion of Flexor Digitorum Profundus?
Definition
Anterior distal phalanges of digits 2-5
Term
What is the action of Flexor Digitorum Profundus?
Definition
Flexes phalanges 2-5, flexes hand
Term
What is the origin of Flexor Digitorum Superficialis?
Definition
Medial epicondyle of humerus, coronoid process of ulna, proximal shaft of radius
Term
What is the insertion of Flexor Digitorum Superficialis?
Definition
Middle phalanges of digits 2-5
Term
What is the action of Flexor Digitorum Superficialis?
Definition
Flexes proximal and middle phalanges of digits 2-5, flexes hand
Term
What is the origin of Flexor Pollicis Longus?
Definition
Anterior aspect of radius and interosseus membrane
Term
What is the insertion of Flexor Pollicis Longus?
Definition
Distal phalanx of thumb (pollex)
Term
What is the action of Flexor Pollicis Longus?
Definition
Flexes thumb
Term
What is the origin of Extensor Carpi Ulnaris?
Definition
Lateral epicondyle of humerus, posterior ulna
Term
What is the insertion of Extensor Carpi Ulnaris?
Definition
Metacarpal 5
Term
What is the action of Extensor Carpi Ulnaris?
Definition
Extends and adducts hand
Term
What is the origin of Extensor Carpi Radialis Longus?
Definition
Lateral supracondylar ridge of humerus
Term
What is the insertion of Extensor Carpi Radialis Longus?
Definition
Metacarpal 2
Term
What is the action of Extensor Carpi Radialis Longus?
Definition
Extends and abducts hand
Term
What is the origin of Abductor Pollicis Longus?
Definition
Posterior radial and ulnar surface, interosseus membrane
Term
What is the insertion of Abductor Pollicis Longus?
Definition
Metacarpal 1
Term
What is the action of Abductor Pollicis Longus?
Definition
Abducts and extends thumb
Term
What is the origin of Extensor Carpi Radialis Brevis?
Definition
Lateral epicondyle of humerus
Term
What is the insertion of Extensor Carpi Radialis Brevis?
Definition
Metacarpal 3
Term
What is the action of Extensor Carpi Radialis Brevis?
Definition
Extends and abducts hand
Term
What is the origin of Extensor Pollicis Brevis?
Definition
Posterior radius, interosseus membrane
Term
What is the insertion of Extensor Pollicis Brevis?
Definition
Proximal phalanx of thumb (pollex)
Term
What is the action of Extensor Pollicis Brevis?
Definition
Extends thumb
Term
What is the origin of Extensor Digitorum?
Definition
Lateral epicondyle of humerus
Term
What is the insertion of Extensor Digitorum?
Definition
Middle and distal phalanges of digits 2-5
Term
What is the action of Extensor Digitorum?
Definition
Extends all phalanges of digits 2-5, extends hand
Term
What is the origin of Psoas Major?
Definition
T12,L1-5
Term
What is the insertion of Psoas Major?
Definition
Lesser trochanter of femur
Term
What is the action of Psoas Major?
Definition
Flexes thigh and lumbar vertebrae 
Term
What is the origin of Extensor Pollicis Longus?
Definition
Posterior ulna, interosseus membrane
Term
What is the insertion of Extensor Pollicis Longus?
Definition
Distal phalanx of thumb (pollex)
Term
What is the action of Extensor Pollicis Longus?
Definition
Extends thumb
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