Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
UE and thorax
lecture week 7
| Question | Answer |
|---|---|
| The muscle responsible for a specific action is a what? | Agonist |
| Prime mover is another name for what? | Agonist |
| The muscle that facilitates action of other muscles by being an antagonist to an undesirable motions and therefore facilitates the action the of primary mover | Synergist |
| An accessory mover is another name for what? | Synergist |
| The fixator is responsible for what? | Stabilizing one part of the body to form a base for another action |
| The biceps flexing the supinated forearm is an example of what functional group of muscle? | Prime mover/agonist |
| The rhomboids fix the scapula in order to anchor muscles is an example of what function group of muscle? | fixator |
| The brachial assists the biceps in flexing the supinated forearm is an example of what functional group of muscle? | accessory mover |
| The wrist extensors are ____ to finger flexors because extension of the wrist ____ the power of finger flexion. | 1. synergist 2. increases |
| The muscle that produces the opposite action of an agonist is what? | Antagonist |
| Muscles which extend the forearm (triceps) are the _____ of those which flex (biceps) and vice versa | Antagonist |
| Muscle fibers shorten as force is generated | Concentric |
| Muscle fibers lengthen as opposing force is greater than strength of muscle | Eccentric |
| Force generate without changing length of muscle | Isometric |
| A bicep curl is an example of what type of contraction | concentric |
| You are holding a bicep curl for a period of time and slowly the force of the weight is greater than the strength of your bicep. Your biceps start to lengthen. This is an example of what type of contraction | Eccentric |
| You are doing a 30 day plank challenge with your homies. The person who hold their plank the longest by the end of the month wins. Holding a plank is an example of what type of muscle contraction? | Isometric |
| What does isotonic refer to? | force generated as length of a muscle changes |
| what are 2 examples of isotonic contraction? | 1. concentric 2. Eccentric |
| The triangular gap in the posterior musculature is called what? | Triangle of ausculation |
| What does auscultation refer to | ability to listen |
| why does placing your hands on opposite shoulders allow for better auscultation? (3 reasons) | 1. muscle thickness thins 2. increases size of triangle 3. rolls scapula/shoulders anteriorly and laterally rotate |
| What is the superior and medial border of the triangle of auscultation? | The inferior border of trapezius |
| What is the lateral border of the triangle of auscultation? | Vertebral (medial) boarder of scapula |
| What is the inferior border of the triangle of auscultation? | Latissimus dori |
| What makes up the floor of the triangle of auscultation? | rhomboid major, erector spine group, 6th and 7th ribs and intercostal muscles |
| when talking medial and lateral rotation of the scapula you want to reference and think about what part? | Inferior angle |
| What muscles assist in protraction of the scapula? (2) | 1. serratus anterior 2. pectoralis minor |
| What muscles assist in retraction of the scapula? (3) | 1. rhomboideus major 2. rhomboideus minor 3. middle fibers of trapezius |
| what muscles assist in elevation of the scapula? (2) | 1. Levator scapulae 2. upper fibers of trapezius |
| What muscles assist in the depression of the scapula? (3) | 1. lower fibers of trapezius 2. pectoralis minor 3. latissimus dorsi |
| what muscles assist in medial rotation of the scapula? (3) | 1. levator scapulae 2. rhomboideus minor 3. rhomboideus major |
| What muscles assist in lateral rotation of scapula? (3) | 1. serratus anterior 2. lower fibers of trapezius 3. upper fibers of trapezius |
| What are the 4 muscles that make up the rotator cuff? | 1. supraspinatus 2. infraspinatus 3. teres minor 4. subscapularis |
| Which of the muscle tendons in the rotator cuff are most prone to trauma and injury? Why? | Supraspinatus - it's tendon passes between humeral head and acromion |
| The function of the muscles within the rotator cuff are? (2) | 1. stabilize the humeral head ( compresses glenohumeral joint) 2. Prevent translation of humerus and allow for increased force from deltoids during abduction |
| What type of movement often injures the rotator cuff? | Repetitive overhead movements or forceful pulling |
| The muscles of the rotator cuff originate on _____ and insert on _______ | 1. scapula 2. head of humerus |
| The shoulder girdle is made up of what? | 1. clavicle 2. scapula |
| The labrum in the shoulder girdle increases the depth of what joint? | glenohumeral joint |
| What structures pass through the (lateral ) quadrangular space? | 1. axillary nerve 2. posterior humeral circumflex artery and vein |
| What is the clinical significance of the quadrangular space? | If the QS gets compressed ( by muscles that border space) can entrap the axillary nerve- 1st clinical significance= signs and symptoms of deltoid weakness - 2nd clinical significance = regimental patch numbness |
| What is the superior border of the quadrangular space? | inferior margin of teres minor |
| What is the inferior border of the QS ? | superior margin of the teres major |
| What is the later border of the QS? | the surgical neck of of the humerus |
| What is the medial border of the QS? | lateral margin of long head of triceps |
| What is the anterior border of QS? | Subscapularis |
| What structures pass through the (medial) triangular space | scapular circumflex artery and vein |
| What is the superior border of the TS? | Teres minor / subsacpularis |
| what is the inferior border of the TS? | superior aspect of teres major |
| What is the lateral border of the TS? | medial aspect of long head of triceps |
| What passes through the triangle interval? | Radial nerve (en route to posterior compartment) profunda brachii artery ( to arm) |
| What is the superior border of the TI? | Teres major |
| What is the medial border of the the TI? | long head of triceps |
| What is the lateral border of the TI? | humerus or lateral head of triceps |
| what is the passageway deep the the flexor retinaculum between the tubercles of the scaphoid and trapezoid bones on the lateral side and the pisiform and hook of the hamate on the medial side? | the carpal tunel |
| The carpal tunnel is bordered by what 2 carpals and what ligament? | 1. lunate 2. capitate 3. transverse carpal ligament/flexor retinaculum |
| the capitate and lunate carpal are _____ to the transverse ligament | opposite |
| The contents of the of the carpal tunnel include (be specific): | Median nerve (+9 tendons) -4 flexor digitorum profundus tendons -4 flexor digitorum superficialis -1 flexor pollicis longus |
| Just prior to entering the carpal tunnel, the flexor tendons to the fingers are surrounded by the _______ while the _____ usually has its own sheath | 1. common flexor tendon sheath 2. flexor policies longus |
| What are the causes of carpal tunnel syndrome? | 1. Reduction of the size of the tunnel (lesion, movement of lunate or capitate) 2. increase in size of tendons or nerves |
| What is the only muscle of the rotator cuff that does abduction? | supraspinatus |
| The teres minor and infraspinatus within the rotator cuff participate in what action? | external rotation |
| You have a patient that comes in with shoulder pain and you are trying to evaluate which muscle of the rotator cuff is damaged. To differentiate between these 4 different muscles what actions would each of these muscles be weak during or have pain with? | 1. supraspinatus - abduction 2. subscapularis- internal rotation 3. teres minor-external rotation and adduction 4. infraspinatus - external rotation and adduction |
| what does the shoulder refer to ? | Scapula and humerus |
| the joint between the acromion and distal clavicle is what? | acromioclavicular joint |
| What makes up/what are the parts of the AC joint | 1. AC ligament 2. articular disc (sometimes present) 3. coracoclavicular ligament |
| list the ligaments of the scapula | 1. coracocromial ligament 2. superior transverse scapular ligament |
| the ligament across the scapular notch | (superior) transverse scapular ligament |
| the (superior) transverse ligament creates what ? What nerve passes through ? | 1. Suprascapular foreman 2. suprascapular nerve |
| the suprascapular nerve innervates? | 1. supraspinataus 2. infraspinataus |
| what ligament covers over the long head of the bicep tendon and lies in the bicipital/ intertubercular groove | transverse humeral ligament |
| the transverse humeral ligament hold what muscle in place? | long head of bicep |
| what's the name of the joint where the manubrium of sternum and the proximal clavicle meet? This joint is also the only anatomical joint between the upper extremity and axial Skelton, | sternoclavicular joint |
| what type of disc is often found with the sternoclavicular joint? What does this disc do for this joint? | 1. fibrocartilagenous 2. increases range of motion |
| The coracoclavicular ligament attaches at the ____ to the ___ | 1. coracoid process 2. clavicle |
| From the acromioclavicular joint the coracoid process is just _____ | inferior |
| You have a patient come into your office with limited adduction ability in shoulder. You have the patient adduct their arm above 30 degrees and you press down on the top of your arm. You notice a weak deltoid. What space and what nerve are being affected? | Space: quadrangular space Nerve: axillary |
| What ligament is often injured due to repetitive stress injuries and repaired during Tommy johns surgery? | Ulnar collateral ligament |
| what ligament is often associated with a traumatic injury | Radial collateral ligament |
| The annular ligament has fibers continuous with what other ligament? | Radial collateral ligament |
| The annular ligament hold the _____ in place | radial head |
| what ligament is often looser in kids? If their arm is pulled up quickly the radial head comes out as a result. What is the name of this condition? | 1. annular ligament 2. Nurse maids elbow |
| What spans and connects between the radius and ulna? | interosseous membrane |
| what are the effects of carpal tunnel syndrome? (3) | 1. paresthesia (pins and needles), hypesthesia (loss/reduction of sensation), anesthesia (without sensation) to lateral (radial) 3 1/2 digits 2. atrophy of 3 thenar muscles 3. progressive loss of coordination and strength in thumb |
| With carpal tunnel syndrome what 2 muscles in correlation with the progressive loss of coordination and strength of the thumb? | abductor pollicis brevis and opponent pollicis |
| At the end of the ulna what is the name of the disc that helps support the integrity of the joint? | triangular fibrocartilage |
| What limits range of motion in muscles? | 1. muscles getting stretched out and weaken (stretch weakness) 2. muscles that get super tight build up adhesions and are unable to stretch to original length 3. hyperkyphosis |
Created by:
921894538563264
Popular Anatomy sets