func anat elbow wrist and hand

what is the overall purpose of the upper limb?
to effectively manipulate our environment
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what are the 3 main joints within the elbow
humeroradial, humeroulnar, proximal radioulnar
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the elbow assists the shoulder in what
force application and controlling hand placement in space
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which wrist bone is largest at the elbow
ulna
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what type of joint is the humeroradial joint
hinge
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what two bone landmarks make it
semilunar notch and trochlea of humerus
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what type of joint is the humeroradial
classed as gliding but is really a restricted ball and socket (by the annular ligament)
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what bones is it formed by
capitulum of humerus and head of radius
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what type of joint is the proximal radioulnar
pivot
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where does articulation occur
between head of the humerus and radial fossa, held in place by the annular ligament
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what are mens' and womens' carrying angle
men= 15 deg. women= 25 deg. the angle of the forearm relative to the radius
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what gives elbow stability
annular ligament, joint capsule, ulnar collateral ligament, radial collateral ligament, muscles
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origin brachialias
lower shaft, anterior aspect of humerus
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insertion brachialis
coronoid process
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action brachialis
flexor in all elbow positions
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origin biceps brachii
supraglenoid tubercle, superior glenoid rim, labrum, coracoid process
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insertion biceps brachii
radial tuberosity
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action biceps brachii
elbow flexion, shoulder flexion, supination
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origin brachioradialis
lateral supracondylar ridge of humerus
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insertion brachioradialis
styloid process of radius
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action brachioradalis
supination and elbow flexion when forearm is neutral
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origin triceps brachii
infraglenoid tubercle, medial and lateral shaft of humerus
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insetion triceps brachii
olecranon process
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action triceps brachii
elbow extensor, shoulder stability, shoulder extension
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origin anconeus
lateral epicondyle of humerus
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action anconeus
elbow extensor
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origin pronator teres
common flexor tendon to medial epicondyle and coronoid process
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insertion pronator teres
lateral surface of radial shaft
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action pronator teres
pronator
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origin pronator quadrtaus
oblique ridge of distal ulna shaft
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insertion pronator quadratus
anterior surface of distal radius shaft
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action pronator quadratus
pronation
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origin supinator
lateral epicondyle humerus, collateral and annular ligaments, supinator crest and supinator fossa of ulna
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insertion supinator
lateral surface of radial shaft
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action supinator
supination
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going clockwise from hamate, list the bones in the hand
hamate, capitate, trapezoid, trapezium, scaphoid, lunate, triquetrum, pisiform
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what does the distal radioulnar joint do
pivot joint that allows the radius to rotate around the ulna in sup/pronation
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what does the radiocarpal joint allow
condyloid joint that allows flexion, extension, radial and ulnar deviation
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mid/intercarpal joints are what type
gliding
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what are the carpometacarpal joints
modified saddle joints between carpals and internal base of fingers
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what are the metacarpophalangeal joints
condyloid joints allowing for flexion, extension, abduction, adduction and circumduction
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interphalangeal joints (proximal and distal) are what type of joint
hinge, n.b. the thumb has only one IP joint
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what are extrinsic hand muscles
origin and muscle belly is located outside of hand and act via long tendons
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what are intrinsic muscles
located within and operate the IP and MCP joints
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intrinsic muscles: what is the pad of the thumb called
thenar eminence
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intrinsic muscles: what is the pad of the little finger called
hypothenar eminence
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name the flexors originating from the medial epicondyle of humerus
pronator teres, flexor carpi-radialis, flexor carpi-ulnaris, flexor digitorum superficialis, palmaris longus
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name the extensors originating from the lateral epicondyle of humerus
extensor carpi-radialis brevis, extensor carpi-ulnaris, extensor, extensor digitorum, extensor digiti minimi
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radial deviation is caused by
the carpi-radialis pair
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Other cards in this set

Card 2

Front

what are the 3 main joints within the elbow

Back

humeroradial, humeroulnar, proximal radioulnar

Card 3

Front

the elbow assists the shoulder in what

Back

Preview of the front of card 3

Card 4

Front

which wrist bone is largest at the elbow

Back

Preview of the front of card 4

Card 5

Front

what type of joint is the humeroradial joint

Back

Preview of the front of card 5
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