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63 Cards in this Set
- Front
- Back
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What is the upper limb innervated by?
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ventral primary rami
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When are limb buds present?
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by the 5th week of gestation
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In what position do the limbs develop
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in a ventro-lateral position
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Where does the upper limb develop opposite of?
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C5-T1
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Where does the lower limb develop opposite of?
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L2-S3
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How can the upper limb rotate?
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laterally, extend, and adduct
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How can the lower limb rotate?
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rotate medially, extend, adduct
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The pectoral girdle and shoulder consists of
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clavacle to scapula
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The arm consists of __
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shoulder to elbow
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The forearm consists of
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elbow to wrist
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What does the hand consist of?
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wrist to fingertip (distal to wrist)
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What is the purpose of the axialla?
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for the stabilization of the upper limb with the axial skeleton
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What is the purpose of the lower limb?
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stability
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What is the purpose of the upper limb?
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Mobility and to place the hand in a position of function
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What is the sternoclavicular joint? what is it supported by? what type of joint?
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connects the sternum to the clavicle articulation with upper limb with axial. it is a synovial joint supported by strong sternoclavicular ligaments
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What is the purpose of the clavicle
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It acts as a strut and holds the upper limb out from the body.
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What are the ligaments of the pectoral girdle?
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acromioclavicular ligament, coracoclavicular ligament, coracoacromial ligament
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What is the only joint in the pectoral girdle?
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the sternoclavicular joint
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What makes up the pectoral girdle?
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the clavicle and scapula
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What does the acromioclavicular ligament connect?
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the acromium to the clavicle
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the coracoclavicular ligament connects
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clavical to the scapula
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the coracoacromial ligament connects what?
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acromion to the coracoid process
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Where is the coracoid process and the acrominum?
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in the scapula
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What is the purpose of the coracoacromial ligament?
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to make a roof for the shoulder joint. no movement because connects the same bone
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What is the joint in the shoulder joint?
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the glenohumeral joint
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What is the glenohumeral joint connect?
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gleno fossa of scapula to top of humerus
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What type of joint is the glenohumeral joint?
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a synovial ball and socket
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What helps strengthen the shoulder joint?
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the glenoid labrum and coracchumeral ligament (connects the coracoid process to the humerus)
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What is the purpose of the glenoid labrum?
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to deepen the joint by surrounding the glenoid fossa -- makes it harder for the ball to come out of the socket
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What are the rotator cuff muscles?
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Supraspinatus
Infraspinatus Teresa minor Subscapularis |
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What is the primary and secondary support of the shoulder?
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primary - ligaments
secondary - muscles |
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Whats the purpose of the rotator cuff muscles?
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the stability of the shoulder joint and contributes to movement
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What type of joint in the elbow joint?
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a true hinge joint
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What do all hinge joints have?
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collateral ligaments and only 1 axis of movement
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What does the medial collateral ligament connect?
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the ulna to the humerus
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What does the lateral collateral ligament connect?
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the radius to the humerus
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what does the annular ligament allow and what does it connect?
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allows supination and pronation
and it surround the radius and connects to the ulna |
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What bones mainly participate in the elbow joint?
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the ulna and humerus
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How can the elbow joint move?
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can only flex and extend
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Name the 3 sections of the wrist and hands?
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carpals, metacarpals and flangees
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What 4 bones form the radio carpal joints?
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the radius, scaphoid, lunat, triquetrum
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Where are the distal interphalangeal joints?
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between the medial and distal phalanges
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Where are the proximal interphalangeal joints?
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between the medial and proximal phalanges
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Where are the carpometacarpal joints?
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connects the carpals to the metacarpals
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What muscles make up the anterior compartment of the arm?
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brachialis
biceps brachii coracobrachialis, |
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What muscle is the primary flexor of the elbow?
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the brachialis
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What muscles are in the posterior compartment of the arm?
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the triceps brachii -- 3
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What does the coracobrachialis connect?
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Coraco process to the humerus
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What does the brachialis connect?
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humerus to ulna
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What does the biceps connect?
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Scapula to radius
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What is the action of the biceps and triceps?
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Biceps=flex
Triceps=extend |
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What muscles are in the anterior compartment of the forearm?
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pronators of the forearm, wrist flexors, flexors of the digits
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What are the 3 heads of the triceps?
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long, lateral, medial
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What are the muscles of the posterior compartment of the forearm?
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supinators, wrist extensors, extensor of the digits
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Where do all intrinsic muscles of the hand arise?
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on the palmar surface
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What surface of the hand has long extendors but no muscles?
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the dorsal surface
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Name the 7 movements of the shoulder
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1. flexion
2. extension 3. abduction 4. adduction 5. medical rotation 6. lateral rotation 7. circumduction |
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What muscles do flexion of the shoulder
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pectoralis major, Deltiod, long head of biceps brachii
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What muscles do shoulder abduction
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Deltoid and supraspinatus
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What muscles do shoulder adduction?
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pectoralis major and latissimus dorsi
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What muscles do lateral rotation of the upper limb?
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infraspinatus, Teres minor, posterior deltoid
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What muscles do medial rotation of the upper limb?
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latissimus dorsi, teres major, subscapularis, anterior deltoid
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