Bio 260 ch 11/appendicular muscles/ martini/brulte
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| What are the 2 major groups of appendicular mucles | 1) pectoral girdle/ upper limbs2) pelvic girdle /lower limbs
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| What is the FX of appendicular muscles? | stabilize pectoral and pelvic girdle & move upper/lower limbs
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| What has the pelvic girdle evolved to do? | transfer the weight from axial to appendicular skeleton
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| Name the 4 divisions fot he pectoral girdle/upper limbs: | 1) muscles that position the pectoral girdle2) muscles of upper arm3) muscles of forearm and wrist4) muscles of the hand & fingers
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| Name the 7 muscles that position the pectoral girdle | LT would like to Sub Serrate & Pec Major/Minor Runners: L= levator scapulae T= trapeziusSub = subclaviusSerrate= serratus anteriorPec= pectoralis minorRunner= Major/minor rhomboid
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| Where is the Levator scapulae located? | O= transverse processes of C1-C4I= vertebral border of scapulaA= elevate scapula (shrug shoulders)
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| Removing the trapezius reveals the ____ and the ____ | Minor/major Rhomboidlevator scapulae
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| Where do the Rhomboids Originate? | spinous processes of C7 (minor) to thoracic spine
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| Where do the Rhomboids insert to move? | vertebral border of scapulaeFX: adduct (move towards the midline) and perform downward rotation of scapulae
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| What is the fan shaped muscle on the lateral (side) wall of chest? | serratus anterior
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| What is the origin of serratus anterior? | anterior/superior margins of ribs 1-9
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| What is the insert of serratus anterior? | anterior surface of vertebral border of scapulae
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| What is the action of serratus anterior | protract or abduct (bring shoulders as far forward or anteriorly); Kyphosis reflects protracted shoulder
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| Name the 2 deep chest muscles | 1) pectoralis minor2) subclavius
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| What is the origin of subclavius ? | O= first rib
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| What is the insert of subclavius? | inferior border of clvicle
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| What is the Action of subclavius? | depress and protract the shoulder
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| What is the Insert of the Pectoralis minor? | coracoid Process of scapulaFX: depress and protract shoulder
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| The origin of the ______ minor is on the anterior (front) surface of ribs 3-5 | pectoralis
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| The small _______ is the only arm muscle attached to scapulae that produces flexion and adduction at shoulder joint. | coracobrachialis
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| The ______ muscle assists the Deltoid muscle when abducting the arm | supraspinatus
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| The subscapularis and ___ ___rotate the arm medially | teres major
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| The origin and action of the subscapularis is: | O = subscapular fossaI = lesser tubercle of humerus
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| Name the 4 rotator cuff muscles: | Supraspinatus, Infraspinatus,Teres minor & subscapularis
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| The ___ and Teres Major rotate the arm laterally | infraspinatus
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| The rotator cuff muscles of ___,___,___ insert into greater tubercle of humerus. | Supraspinatus, Infrspinatus, Teres Minor
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| Like the coracobrachialis muscle, the ___head of the biceps originates from coracoid processof scapula | short
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| The pectoralis _____ origin is on the cartilage ribs 2-6,body of sternum,and inferior clavicle | major
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| The ____ ___ action is extension(increase angle between 2 joints/bones),adduction and medial rotation of shoulder | lattisimus dorsi
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| The origin of Latissimus Dorsi is the ___ ___ of thopracic and lumbar vertebrae, ribs 8-12 | spinous process
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| Latissimus Dorsi inserts on ____ ___ of humerus | intertubercular groove
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| The ___ ___ flexes the shoulder joint and the latissimus dorsi ___ it. | pectoralis major / extends
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| Rotator cuff tendons support the shoulder joint capsule and ___ the range of movement. | limit
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| Most muscles that move forarm and wrist originate on ____ and insert on the ___ and ___ muscles. | O= humerusI = radial,ulnar,carpal (forearm and wrist)
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| The long head of triceps brachii originates on ____ | infraglenoid tubercle of scapula
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| All 3 tricep heads insert on ____ | olecranon of ulna
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| The ___ head of triceps originates on superior,lateral margin of humerus. | lateral
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| The medial head of triceps originate on ____ | posterior surface of humerus
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| Triceps action are as ____ which is antagonistic to biceps. | extensors;antagonistic to bicep flexors
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| The long head of biceps brachii originate on ___ | supraglenoid tubercle of on scapula
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| Both bicep heads insert on __ ___ | radial tuberosity
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| Bicep action is ____ | flexion at elbow & shoulder, supination
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| The triceps brachii ___ the elbow when doing push ups. | extend
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| We are strongest when the forearm is __ and the biceps flexes. | supinated
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| When the forearm is pronated (faces anteriorly),the ____ cannot function effectively due to its insertion. | biceps brachii (example is doing a pull up)
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| The brachialis and brachioradialis __ the elbow | flex; triceps is antagonistic
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| Name 3 superficial muscles that work together to flex wirst. | Flexor carpi ulnaris; Flexor carpi radialis; palmaris longus
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| Flexor carpi radialis flexes and ___,while flexor carpi ulnaris flexes and ___ | radialis- abducts / ulnaris- adducts
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| Extensor carpi radialis action is: | extension & abduction (move away from midline)
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| Extensor carpi ____ produces extension and adduction (moving towards the midline) | ulnaris
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| Pronator teres muscle originates on ___ epicondyle of humerus | medial
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| Supinator originates on ___ epicondyle of humerus and supinates ___ and hand___ | lateral/ forearm and hand
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| In general, extensors are along the ___ and ___ surfaces of the forearm. | posterior and lateral
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| Forearm ___ are found on the anterior and medial surfaces. | flexors
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| Pronator teres and supinator insert on ___ and cause rotaion without flexing or extending the elbow. | radius
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| What causes carpal tunnel syndrome? | inflammation of retinaculum restricts movement;median nerve is irritated
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| Forearm muscles that provide strength and crude cobntrol of the hand are ___ muscles | extrinsic
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| Small Intrinsic hand muscles is for __ control | fine
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| Small intrinsic muscles originate on the __ and ___ bones. | carpal/ metacarpal
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| No muscles originate on the phalanges. T or F | true
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| What are the SX of carpal tunnel syndrome? | wrist flexion pain,tingling sensation,numbness on the palm
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| What is the TX for carpal tunnel syndrome? | aspirin,anti inflammatory,use of a splint to prevent movement of wrist
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