Practical #3 Flashcards
clavicle acromial end
Rounded end, attaches to clavicle joint
clavicle sternal end
Thin oval end, attaches to sternum
scapula acromion process
Forms apex of shoulder, (point that sticks out), at very end of clavicle
scapula coracoid process
Inferior to clavicle, looks like bent finger
scapula glenoid cavity
Socket for head of humerus
scapula supraspinous fossa
Posterior- Top indentation closest to spine, above clavicle
scapula infraspinous fossa
Posterior- Large flat plate below clavicle
sub scapular fossa
Anterior- Large flat plate with ridges below clavicle
scapula medial border
Anterior- Lines outside of subscapular fossa
scapular spine
Posterior- Extension that connects acromion process to medial border
humorous head
Rounded end that connects in shoulder joint
humorous greater tubercle
Larger bump on epiphysis closest to head
humorous lesser tubercle
Smaller bump on epiphysis closest to head
humorous inter tubercular sulcus
Anterior- Indentation for bicep muscle, btw e/ tubercles
humorous deltoid tuberosity
On side w/ tubercles, ridge halfway down
shoulder glenoid labrum
Lining that outlines covers glenoid cavity
shoulder glenohumeral ligaments
Anterior- attaches humerus to glenoid cavity
shoulder coracohumeral ligament
Attaches head of humerus to coracoid process
shoulder transverse humeral ligament
Attaches lesser and greater humeral tubercles
shoulder aromioclavicular ligament
Attaches acromion to clavicle
shoulder coracoclavicular ligament
Attaches coracoid process to clavicle
shoulder coracoacromial ligament
Attaches acromion to coracoid process
rotator cuff muscles- supraspinatus
o: scapula
i: humerus
a: abduction of arm
anterolateral muscles- serratus anterior (finger like projections that wrap frm back to ribs)
o: ribs 1-9
i: scapula
a: protraction (abduction) of scapula
posterior muscles- latissimus dorsi (fibers run towards midline)
o: spinous process T7-L5
i: intervertebral groove of humerus
a: medially rotates humerus
posterior muscles- teres major
larger and more inferior to scapula
o: scapula
i: humerus
a: adduction/ extension of arm
posterior muscles- levator scapulae (attaches to top of medial border)
o: transverse proces. of C1-4 vert.
i: scapula
a: elevation of scapula
posterior muscles- rhomboids
connect medial border of scapula to spine
o: spinous process of T2-5 vert.
i: scapula
a: retraction (adduc.) of scapula
rotator cuff muscles- teres minor
closer to scapula
o: scapula
i: humerus
a: lateral rotation of arm
rotator cuff muscles- supraspinatus (lay in supraspinatus fossa)
o: scapula
i: humerus
a: abduction of arm
rotator cuff muscles- infraspinatus (lay in infraspinatus fossa)
o: scapula
i: humerus
a: lateral rotation of arm
rotator cuff muscles- subscapularis (lay in subscapularis fossa)
o: scapula
i: humerus
a: medial rotation of arm
rotator cuff muscles- subscapularis (lay in subscapularis fossa)
o: scapula
i: humerus
a: medial rotation of arm
force arm
the muscle at work
at INSERTION
resistance arm
point farthest away (what you are lifting)
fulcrum
where mvmnt happens
(usually a joint) ex. elbow
1st class level
extension
fulcrum in middle
2nd class level
resistance in middle
3rd class level
flexion
force in the middle
force and mechanical advantage formulas
measurements
f/L (resistance)
f* MA= load moved
resistance (load) * MA= force
distance
humerus- capitulum
Dome shape knob on distal end to head
humerus- trochlea
Sideways hooklike knob medial to capitulum
humerus- coronoid fossa
ANTERIOR- cavity btw capitulum and trochlea
humerus- olecranon fossa
POSTERIOR- cavity superior to trochlea
humerus- medial epicondyle
Large round thumb like perturbance on distal end
humerus- lateral epicondyle
On opposite side of medial epicondyle
radius- head
Connects to capitulum of humerus
radius- neck
ANTERIOR- indentation on top of ulna, trochlea of humerus sits on top
radius- radial tuberosity
ANTERIOR- underneath of bottom lip of trochlear notch
ulna- olecranon process
At superior end, cups head of humerus
ulna- ulnar collateral ligament
ANTERIOR- indentation on top of ulna, trochlea of humerus sits on top
ulna- coronoid process
ANTERIOR- underneath of bottom lip of trochlear notch
radial collateral ligament
Runs horizontal (when bent), from medial epicondyle of humerus to radius
ulnar collateral ligament
Runs horizontal/ diagonal (when bent) from medial epicondyle of humerus to ulna
annular ligament
Runs vertical (when bent) from ulna over radius
biceps brachii
O: scapula
I: radius
A: flexion of forearm
brachialis
O: humerus
I: ulna
A: flexion of forearm
brachioradialis
O: humerus
I: radius
A: flexion of forearm
triceps brachii
O: scapula
I: ulna
A: extension of forearm
radial knotch
synovial joint
interosseous mem.
fibrous joint
ulnar notch
synovial joint
pronator teres
O:
I:
A:
supinator
O:
I:
A:
ulna- styloid process
Very distal end, tip
radius- styloid process
Very distal end, tip
scaphoid
Bottommost wrist bone directly off thumb
lunate
Bottommost wrist bone lateral to scaphoid
metacarpals
First set of bones superior to carpal bones
phalanges
Three sets of bones superior to metacarpals
flexor carpi radialis
O: humerus
I: metacarpals
A: flexion of wrist
flexor carpi ulnaris
O: humerus
I: metacarpals/ carpals
A: adduction of hand
flexor diagitorum superficialis
O: ulna
I: middle phal. 2-5
A: flexion of fingers 2-5
extensor carpi radialis longus
O: humerus
I: metacarpal base 2
A: extension of wrist
extensor carpi radialis brevis
O: humerus
I: metacarpal base 3
A: abduction of hand
extensor carpi ulnaris
O: humerus
I: metacarpal base 4
A: adduction of wrist
extensor digitorium
O: humerus
I: base of most distal phalanges
A: extension of fingers 2-5
