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BPK325 > Module 5 > Flashcards

Module 5 Flashcards

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1
Q

clavicle

A

lies horizontally across the anterior part of the thorax superior to the first rib

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2
Q

medial half of the clavicle

A

convex anteriorly (curves toward you when viewed in the anatomical position)

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3
Q

lateral half of the clavicle

A

concave anteriorly (curves away from you)

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4
Q

sternal end of clavicle

A

rounded and articulates with the manbrium of the sternum to form the sternocalvicular joint

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5
Q

the acrominal end of the clavicle

A

board flat, lateral end articulates with the acrominion of the scapula at the acrominoclavicular joint

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6
Q

scapula

A

large, triangular, flat bone with a ridge on its posterior surface

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7
Q

lateral end of scapula

A

lateral end of the spine projects as a flattened, expanded process called the acromion, easily felt as the high point or peak of the shoulder

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8
Q

humerus

A

longest and largest of the free upper limb, it has a ball like proximal end with two prominent projections of bone at the base the ball
a cyncldircal tubular shaft that makes up the majority of its length and an expanded flattened distal end

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9
Q

what does the humerus articulate with

A

proximally with the scapula and distally with both the ulna and the radius to form the elbow joint

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10
Q

proximal end of the humerus

A

features a rounded head that articulates with the glenoid cavity of the scapula to form the glenoid humeral joint.
dital to the head is the anatomical neck

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11
Q

greater tubercle of the humerus

A

lateral projection, distal to the anatomical neck

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12
Q

lesser tubercle of the humerus

A

projects anteriorly, and between the two tubercles runs an inter tubercle sulcus

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13
Q

body of the humerus

A

roughy cylindrical at its proximal end, but it gradually becomes triangular until it is flattened and broad at its distal end

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14
Q

deltoid tuberosity of humerus

A

latterly at the middle portion of the shaft.
serves as a point of attachment for the tendon of the deltoid muscle
the radial groove runs along the posterior margin of the deltoid tuberosity on the posterior surface of the humerus
groove ends at the the inferior margin of the deltoid tuberosity and contains the radial nerve

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15
Q

humerus- capitulum

A

rounded knob on the lateral aspect of the bone that articulates with the head of the radius

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16
Q

humerus- radial fossa

A

an anterior depression above the capitulum that articulates with the head of the radius when the forearm is flex(bent)

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17
Q

humerus-trochlea

A

located medial to the capitulum is a spool shaped surface that articulates with the ulna

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18
Q

humerus-coracoid fossa

A

an anterior depression that receives the coronoid process of the ulna when the forearm is flexed

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19
Q

humerus- olecranon fossa

A

ia the large posterior depression that receives olecranon of the ulna when the forearm is extended (straightened)

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20
Q

humerus- medial and lateral epicondyle

A

rough projections on either side of the distal end of the humerus to which the tendons of most muscles to the arms are attached

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21
Q

ulna

A

located o the medial aspect of the forearm

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22
Q

proximal end of the ulna

A

olecranon which forms the prominence of the elbow

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23
Q

coracoid process of the ulna

A

anterior projection distal to a large notch- the trochlear notch- this receives the trochlea of the humerus to form part of the elbow joint

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24
Q

radial notch of the ulna

A

depression that is lateral and inferior to the trochlear notch and articulates with the head of the radius

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25
ulnar tuberosity
inferior to the coronoid process
26
radius
located on the lateral aspect of the forearm, narrower at proximal end and widest at its distal end
27
proximal end of the radius
disc shaped head that articulates with the capitulum of the humerus and the radial notch of the ulna
28
radial tuberosity
a point of attachment for tendon of the biceps brachii muscle
29
styloid process-radius
the shaft of the radius widens distally to form this on the lateral side
30
pectoralis major-orgin and insertion
orgin: clavicle, sternum and costal cartilages of ribs 2-6 and sometimes of ribs 2-7 insertion: lateral lip of the inter tubercular sulcus of humerus
31
pectoralis major-action
as a whole adducts and medially rotates arm at shoulder joint, clavicular head flexes arm, and sternocostal head extends the flexed arm to side of trunk
32
lattiusmus dorsi-orgin and insertion
orgin: spines of t7-l5, crests of the sacrum and ilium, ribs 9-12 insertion: interubercular sulcus of humerus
33
lattismus dorsi action
extends, adducts and medial rotates arm at shoulder joint; draws arm inferiorly and posteriorly RMA: elevates vertebral column and torso
34
deltoid- orgin and insertion
orgin: acromial extremity of clavicle, arocmion of scapula and spine of scapula insertion: deltoid tuberosity of humerus
35
deltoid-action
lateral fibers abduct arm at shoulder joint; anterior fibres flex and medially rotate arm at shoulder joint; posterior fibres extend and laterally rotate arm at shoulder joint
36
trapezius-origin and insertion
origin: superior nuchal line of occipital bone, ligamentum niche and spines of c7-c12 insertion: clavicle and accordion and spine of scapula
37
trapezius-action
super fibers upward rotate capula; inferior fibers depress and upward rotate scapula; superior and inferior fibers together rotate scapula upward; stabilizes scapula RMA: Superior fibers can help extend head
38
rhomboid major origin and insertion
origin- spine sof t2-t5 insertion- vertebral border of scapula inferior to spine
39
rhomboid major action
Elevates and adducts scapula and rotates it downward; stabilizes scapula
40
rhomboid minor-origin and insertion
origin: spines of c7-t1 insertion: vertebral border of scapula superior to spine
41
rhomboid minor- action
Elevates and adducts scapula and rotates it downward; stabilizes scapula
42
pectoralis minor- origin and insertion
origin: ribs 2-5, 3-5 or 2-4 insertion: coracoid process of scapula
43
pectoralis minor-action
Abducts scapula and rotates it downward RMA: Elevates third through fifth ribs during forced inhalation when scapula is fixed
44
serratus anterior- origin and insertion
origin- ribs 1-8, or 1-9 insertion: vertebral border and inferior angle of scapula
45
serratus anterior action
Abducts scapula and rotates it upward RMA: Elevates ribs when scapula is stabilized; known as “boxer’s muscle” because it is important in horizontal arm movements such as punching and pushing
46
subcapularis- origin and insertion
origin: scapular fossa of the scapula insertion: lesser tubercle of the humerus
47
subcapularis-action
Medially rotates arm at shoulder joint
48
supraspinatus- origin and insertion
origin: supraspinos fossa of the scapula insertion: greater tubercle
49
supraspinatus- action
assists deltoid muscle un abducting arm at shoulder joint
50
infraspinatus-origin and insertion
origin- infraspinatous fossa of the scapula insertion- greater tubercle of the humerus
51
infraspinatus action
latterly rotates arm at shoulder joint
52
teres major- origin and insertion
origin: inferior angle of scapula insertion: Medial lip of inter tubercular sulcus of humerus
53
teres major- action
Extends arm at shoulder joint and assists in adduction and medial rotation of arm at shoulder joint
54
teres minor-origin and insertion
origin: inferior lateral border of the scapula insertion- greater tubercle of the humerus
55
teres minor- action
laterally rotates and extends arm at the shoulder joint
56
coracobrachialis- origin and insertion
origin: coracoid process of scapula insertion- middle of medial surface of shaft of humerus
57
coracobrachialis- action
flexes and adducts arm at shoulder joint
58
biceps brachii origin and insertion
origin- Long head: tubercle above glenoid cavity of scapula (supraglenoid tubercle) Short head: coracoid process of scapula insertion- Radial tuberosity of radius and bicipital aponeurosis
59
biceps brachii- action
Flexes forearm at elbow joint, supinates forearm at radioulnar joints, and flexes arm at shoulder joint
60
brachialis- origin and insertion
origin- distal, anterior surface of humerus insertion- ulnar tuberosity and coronoid process of ulna
61
brachialis- action
flexes forum at elbow joint
62
brachioradialis- origin and insertion
origin- lateral border of distal end of humerus insertion- superior to styloid process of radius
63
brachioradialis-action
Flexes forearm at elbow joint; supinates and pronates forearm at radioulnar joints to neutral position
64
triceps brachii- origin and insertion
origin- Long head: infraglenoid tubercle, a projection inferior to glenoid cavity of scapula Lateral head: lateral and posterior surface of humerus Medial head: entire posterior surface of humerus inferior to a groove for the radial nerve insertion: Olecranon of ulna
65

BPK325 (7 decks)

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