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gross anatomy

upper extremity

QuestionAnswer
ORIGIN OF SERRATUS POSTERIOR SUPERIOR CAUDAL LIGAMENTUM NUCHAE, SPINOUS PROCESSES OF C7-T2
INSERTION OF SERRATUS POSTERIOR SUPERIOR SUPERIOR BORDERS OF 2,3,4,5, RIBS
ACTION OF SERRATUS POSTERIOR SUPERIOR RAISES RIBS TO INCREASE THORACIC CAVITY DURING INSPIRATION
INNERVATION OF SERRATUS POSTERIOR SUPERIOR INTERCOSTAL NERVES T1-4
ORIGIN OF SERRATUS POSTERIOR INFERIOR SPINOUS PROCESS OF T11,12,AND L1-3
INSERTION OF SERRATUS POSTERIOR INFERIOR INFERIOR BORDERS OF LAST 4 RIBS
ACTION OF SERRATUS POSTERIOR INFERIOR DRAWS RIBS OUTWARD AND DOWNWARD CONTERACTING THE INWARD PULL OF THE DIAPHRAGM DURING EXPIRATION
INNERVATION OF SERRATUS POSTERIOR INFERIOR INTERCOSTAL NERVES T9-12
THESE MUSCLES LIE DEEP TO LEVATOR SCAPULA AND UPPER TRAPEZIUS SERRATUS POSTERIOR SUPERIOR
THESE MUSCLES LIE DEEP TO LATISIMUS DORSI SERRATUS POSTERIOR INFERIOR
TRIANGULAR SHAPED MUSCLE WHICH, WHEN PAIRED FORMS A TRAPEZIUM. TRAPEZIUS
MOST SUPERFICIAL MUSCLE OF THE BACK TRAPEZIUS
ORIGIN OF TRAPEZIUS EXTERNAL OCCIPITAL PROTUBERANCE, LIGAMENTUM NUCHAE, C7-T12 SPINOUS PROCESSES
INSERTION OF TRAPEZIUS UPPER: LATERAL THIRD OF CLAVICLE, ACROMION MIDDLE: SPINE OF SCAPULA LOWER: ROOT OF SPINE OF SCAPULA
ACTION OF TRAPEZIUS UPPER: ELEVATION, UPWARD ROTATION OF SCAPULA MIDDLE: RETRACTION OF SCAPULA LOWER: DEPRESSION, UPWARD ROTATION OF SCAPULA
INNERVATION OF TRAPEZIUS ACCESSORY NERVE (CRANIAL NERVE XI)AND BRANCHES OF C3,4
ORIGIN OF LATISSIMUS DORSI THORACOLUMBAR APONEUROSIS, LOWER 6 THORACIS SPINOUS PROCESSES, SACRUM AND ILIAC CREST, LOWER 3 TO 4 RIBS, INFERIOR ANGLE OF SCAPULA
INSERTION OF LATISSIMUS DORSI BICIPITAL (INTERTUBERCULAR) GROOVE OF HUMERUS
ACTION OF LATISSIMUS DORSI EXTENSION, MEDIAL ROTATION AND ADDUCTION OF HUMERUS
INNERVATION OF LATISSIMUS DORSI THORACODORSAL NERVE
WIDEST MUSCLE OF THE BACK LATISSIMUS DORSI
POWERFUL EXTENSOR OF FLEXED HUMERUS IN SWIMMING OR CHOPPING WITH AN AXE LATISSIMUS DORSI
PULL THE SHOULDER GIRDLE DOWN AND IS ACTIVE WHEN DOING A DESPRESSION TRANSFER OR WHEN USING CRUTCHES LATISSIMUS DORSI
ORIGIN OF TERES MAJOR INFERIOR ANGLE OF SCAPULA (DORSAL SURFACE) AND LOWER THIRD OF AXILLARY BORDER OF SCAPULA
INSERTION OF TERES MAJOR MEDIAL LIP OF BICIPITAL GROOVE OF HUMERUS
ACTION OF TERES MAJOR EXTENSION, MEDIAL ROTATION, AND ADDUCTION OF HUMERUS
INNERVATION OF TERES MAJOR LOWER SUBSCAPULAR NERVE
INSERTS NEAR LATISSIMUS DORSI AND HAS SAME ACTIONS TERES MAJOR
PULLS DOWNWARD TO HELP STABILIZE THE HEAD OF THE HUMERUS DURING ABDUCTION TERES MAJOR, INFRASPINATUS AND TERES MINOR
ORIGIN OF TERES MINOR UPPER 2/3 OF AXILLARY BORDER OF SCAPULA
INSERTION OF TERES MINOR GREATER TUBERCLE OF HUMERUS
ACTION OF TERES MINOR LATERAL ROTATION AND EXTENSION OF HUMERUS
INNERVATION OF TERES MINOR AXILLARY (CIRCUMFLEX) NERVE
"T" OF THE "SIT" MUSCLES TERES MINOR
HELPS REINFORCE THE CAPSULE OF THE SHOULDER JOINT AND IS ONE OF THE "ROTATOR CUFF" MUSCLES TERES MINOR
ORIGIN OF LEVATOR SCAPULA C1-4 TP'S
INSERTION OF LEVATOR SCAPULA VERTEBRAL BORDER OF SCAPULA FROM SUPERIOR ANGLE TO ROOT OF SPINE
ACTION OF LEVATOR SCAPULA ELEVATION, DOWNWARD ROTATION OF SCAPULA
INNERVATION OF LEVATOR SCAPULA DORSAL SCAPULAR NERVE (C5) AND BRANCHES OF C3,4
ORIGIN OF RHOMBOIDS:MINOR C7 AND T1 SP'S
ORIGIN OF RHOMBOIDS:MAJOR T2-T5 SPS'S
INSERTION OF RHOMBOIDS: MINOR ROOT OF SPINE OF SCAPULA
INSERTION OF RHOMBOIDS:MAJOR VERTERBRAL BORDER OF SCAPULA FROM ROOT OF SPINE TO INFERIOR ANGLE
ACTION OF RHOMBOIDS RETRACTION AND DOWNWARD ROTATION OF SCAPULA
INNERVATION OF RHOMBOIDS DORSAL SCAPULAR NERVE (C5)
THESE MUSCLES WHEN PAIRED FORM A "CHRISTMAS TREE" SHAPE DUE TO THE OBLIQUE AND DOWNWARD DIRECTION OF THEIR FIBERS RHOMBOIDS
ORIGIN OF SUPRASPINATUS SUPRASPINOUS FOSSA OF SCAPULA
INSERTION OF SUPRASPINATUS GREATER TUBERCLE OF HUMERUS (SUPERIOR FACET)
ACTION OF SUPRASPINATUS ABDUCTION OF HUMERUS, STABILIZATION OF HEAD OF HUMERUS
INNERVATION OF SUPRASPINATUS SUPRASCAPULAR NERVE (C5,6)
"SIT" MUSCLES SUPRASPINATUS, INFRASPINATUS, TERES MINOR
THE INSERTION SITE OF THE "SIT" MUSCLES SUPERIOR, MIDDLE AND INFERIOR FACETS OF GREATER TUBERCLE OF HUMERUS
PULLS THE HEAD OF THE HUMERUS INTO THE GLENOID FOSSA AND THUS ACTS AS AN EFFECTIVE STABILIZER FOR HUMERAL ABDUCTION SUPRASPINATUS
ORIGIN OF INFRASPINATUS INFRASPINOUS FOSSA OF SCAPULA
INSERTION OF INFRASPINATUS GREATER TUBERCLE OF HUMERUS (MIDDLE FACET)
ACTION OF INFRASPINATUS LATERAL ROTATION, EXTENSION OF HUMERUS
INNERVATION OF INFRASPINATUS SUPRASCAPULAR NERVE
"I" OF SIT MUSCLES INFRASPINATUS
ORIGIN OF SUBSCAPULARIS SUBSCAPULAR FOSSA OF SCAPULA
INSERTION OF SUBSCAPULARIS LESSER TUBERCLE OF HUMERUS
ACTION OF SUBSCAPULARIS MEDIAL ROTATION AND ADDUCTION OF HUMERUS
INNERVATION OF SUBSCAPULARIS UPPER AND LOWER SUBSCAPULAR NERVE
MUSCLES OF ROTATOR CUFF SUBSCAPULARIS, SUPRASPINATUS, INFRASPINATUS, TERES MINOR
ROTATOR CUFF GUARDS THIS JOINT GLENOHUMERAL JOINT
ONLY ROTATOR CUFF TO INSERT ON LESSER TUBERCLE OF HUMERUS SUBSCAPULARIS
ORIGIN OF PECTORALIS MAJOR CLAVICULAR HEAD:MEDIAL HALF OF CLAVICLE, STERNAL HEAD:STERNUM, CARTILAGES OF UPPER 6 RIBS
INSERTION OF PECTORALIS MAJOR LATERAL LIP OF BICIPITAL (INTERTUBERCULAR) GROOVE OF HUMERUS
ACTION OF PECTORALIS MAJOR: CLAVICULAR HEAD FLEXION OF HUMERUS
ACTION OF PECTORALIS MAJOR: STERNAL HEAD EXTENSION OF HUMERUS FROM A FLEXED POSITION
ACTION OF PECTORALIS MAJOR ADDUCTION, HORIZONTAL ADDUCTION AND MEDIAL ROTATION OF HUMERUS
INNERVATION OF PECTORALIS MAJOR: CLAVICULAR HEAD LATERAL PECTORAL NERVE
INNERVATION OF PECTORALIS MAJOR: STERNAL HEAD MEDIAL PECTORAL NERVE
THIS MUSCLE FORMS THE ANTERIOR WALL OF THE AXILLA PECTORALIS MAJOR
ORIGIN OF PECTORALIS MINOR ANTERIOR SURFACE OF RIBS 3,4,5 NEAR COSTAL CARTILAGES
INSERTION OF PECTORALIS MINOR CORACOID PROCESS OF SCAPULA ON MEDIAL BORDER OF SUPERIOR SCAPULA
ACTION OF PECTORALIS MINOR PROTRACTION,DEPRESSION, DOWNWARD ROTATION OF SCAPULA
INNERVATION OF PECTORALIS MINOR MEDIAL PECTORAL NERVE
ORIGIN OF SUBCLAVIS 1ST RIB COSTOCARTILAGE JUNCTION
INSERTION OF SUBCLAVIS INFERIOR SHAFT OF CLAVICLE-MIDDLE 1/3
ACTION OF SUBCLAVIS STABILIZES CLAVICLE BY MOVING IT MEDIALLY
INNERVATION OF SUBCLAVIS NERVE TO SUBCLAVIS
THIS MUSCLE PREVENTS EXTREME ELEVATION AND PROTRACTION OF THE CLAVICLE SUBCLAVIS
ORIGIN OF SERRATUS ANTERIOR OUTER SURFACE OF UPPER 8 RIBS (BY FINGER-LIKE SLIPS_
INSERTION OF SERRATUS ANTERIOR VERTEBRAL BORDER OF SCAPULA-ANTERIOR SURFACE
ACTION OF SERRATUS ANTERIOR PROTRACTION, UPWARD ROTATION OF SCAPULA, STABILIZES SCAPULA AGAINST CHEST WALL
INNERVATION OF SERRATUS ANTERIOR LONG THORACIC NERVE
LOWER FIBERS OF THIS MUSCLE INTERDIGITATE WITH EXTERNAL OBLIQUE SERRATUS ANTERIOR
STRONGEST PROTRACTOR OF SCAPULA SERRATUS ANTERIOR
HOLDS THE SCAPULA AGAINST THE CHEST WALL TO PROVIDE A FIXED ORIGIN FOR MUSCLES ACTING ON THE HUMERUS SERRATUS ANTERIOR
WEAKNESS OF THIS MUSCLE CAUSES "WINGED SCAPULA" SERRATUS ANTERIOR
ORIGIN OF CORACOBRACHIALIS CORACOID PROCESS OF SCAPULA
INSERTION OF CORACOBRACHIALIS MIDDLE 1/3 OF MEDIAL SURFACE OF HUMERAL SHAFT
ACTION OF CORACOBRACHIALIS FLEXION, ADDUCTION OF HUMERUS
INNERVATION OF CORACOBRACHIALIS MUSCULOCUTANEOUS NERVE (C5,6,7)
ORIGIN OF ANTERIOR DELTOID LATERAL THIRD OF CLAVICLE
INSERTION OF ANTERIOR DELTOID DELTOID TUBEROSITY OF HUMERUS
ACTION OF ANTERIOR DELTOID FLEXION, HORIZONTAL ADDUCTION, MEDIAL ROTATION OF HUMERUS
INNERVATION OF ANTERIOR DELTOID AXILLARY NERVE (CIRCUMFLEX)
ORIGIN OF MIDDLE DELTOID LATERAL ACROMION
INSERTION OF MIDDLE DELTOID DELTOID TUBEROSITY OF HUMERUS
ACTION OF MIDDLE DELTOID ABDUCTION OF HUMERUS TO 90 DEGREES
INNERVATION OF MIDDLE DELTOID AXILLARY NERVE
ORIGIN OF POSTERIOR DELTOID SPINE OF SCAPULA
INSERTION OF POSTERIOR DELTOID DELTOID TUBEROSITY OF HUMERUS
ACTION OF POSTERIOR DELTOID EXTENSION, HORIZONTAL ABDUCTION, LATERAL ROTATION OF HUMERUS
MUSCLE THAT FORMS THE ROUNDED MUSCLE BULK OVER THE SHOULDER JOINT DELTOIDS
STRONG ABDUCTOR BUT CANNOT INITIATE THAT MOVEMENT DUE TO THE ANGLE OF PULL IS PARALLEL TO THE HUMERUS WHEN THE ARM IS BY THE SIDE-SEE SUPRASPINATUS DELTOIDS
ORIGIN OF TRICEPS BRACHII LONG HEAD: INFRAGLENOID TUBERCLE OF SCAPULA LATERAL HEAD: POSTERIOR HUMERUS ABOVE SPIRAL GROOVE MEDIAL HEAD: POSTERIOR HUMERUS BELOW SPIRAL GROOVE
INSERTION OF TRICEPS BRACHII OLECRANON PROCESS OF ULNA
ACTION OF TRICEPS BRACHII EXTENSION OF ELBOW
ACTION OF TRICEPS BRACHII LONG HEAD EXTENSION OF HUMERUS
INNERVATION OF TRICEPS BRACHII RADIAL NERVE
ONLY MUSCLE ON THE POSTERIOR ARM TRICEPS BRACHII
ORIGIN OF ANCONEUS LATERAL EPICONDYLE OF HUMERUS
INSERTION OF ANCONEUS OLECRANON PROCESS AND UPPER POSTERIOR SURFACE OF ULNA
INNERVATION OF ANCONEUS RADIAL NERVE
ACTION OF ANCONEUS ASSISTS EXTENSION OF ELBOW
ORIGIN OF BRACHIALIS LOWER HALF OF ANTERIOR SHAFT OF HUMERUS
INSERTION OF BRACHIALIS TUBEROSITY OF ULNA AND CORONOID PROCESS OF ULNA
ACTION OF BRACHIALIS FLEXION OF ELBOW
INNERVATION OF BRACHIALIS MUSCULOCUTANEOUS NERVE (C5,6,7) AND SOMETIMES BRANCHES FROM RADIAL AND MEDIAN NERVES
STRONGEST ELBOW FLEXOR BRACHIALIS
ORIGIN OF BICEPS BRACHII SHORT HEAD: CORACOID PROCESS OF SCAPULA LONG HEAD: SUPRAGLENOID TUBERCLE OF SCAPULA
INERSTION OF BICEPS BRACHII TUBEROSITY OF RADIUS AND BICIPITAL APONEUROSIS
ACTION OF BICEPS BRACHII FLEXION OF ELBOW AND SUPINATION OF FOREARM
ACTION OF BICEPS BRACHII SHORT HEAD FLEXION OF HUMERUS
INNERVATION OF BICEPS BRACHII MUSCULOCUTANEOUS NERVE (C5,6,7)
CORACOID PROCESS IS THE ORIGINATION SITE FOR BICEPS BRACHII SHORT HEAD AND THE CORACOBRACHIALIS MUSCLES
CORACOID PROCESS IS THE INSERTION SITE FOR PECTORALIS MINOR
Created by: chengel