Lab Practical 2 Flashcards
The skeleton is divided into
- Axial skeleton
2. Appendicular skeleton
Axial skeleton
All bones in the center of gravity; vertebral column, ribs, and skull
Appendicular skeleton
Everything else; shoulders, arms, hips, legs
Girdle
Group of bones that are used to connect the axial skeleton to the appendicular skeleton
Bones that make up the shoulder girdle
- Scapula
2. Clavicle
Glenohumoral joint
Where the glenoid and humorous meet
Glenoid cavity
The “cup” where the humorous fits in
What things allow for so much shoulder movement?
- Glenohumoral joint is very shallow
- The scapula is a “floating bone”
- The only attachment that the shoulder has to the axial skeleton is the sternoclavicular joint
What does it mean that the scapula is a floating bone?
The scapula is not attached to the axial skeleton
What holds the scapula in place?
Muscles
Sternoclavicular joint
Where the sternum attaches to the clavicle; takes a lot of stress
Acromioclavicular joint
Where the acromian and the clavicle meet; takes a lot of stress
There is an inverse correlation between…
Range of motion and stability
When you increase the range of motion…
The stability goes down
Articulation=
Joint
Posterior vs. anterior on scapula
Spine of scapula is posterior
Medial vs. lateral on scapula
Glenoid fossa/cavity faces lateral
Olecranon fossa (humerus)
On the distal side, the large cavity
Posterior vs. anterior on humerus
Olecranon fossa faces posterior
Medial vs. lateral on humerus
Head faces medial
Where do the humerus and scapula articulate
At the glenoid cavity
Ulna
The medial bone, has a “u”
Olecranon (ulna)
Top of the “u” on the ulna
What does the olecranon of the ulna articulate with
The olecranon fossa
Posterior vs. anterior on ulna
Olecranon faces anterior
Radial notch
Smooth side of olecranon
Radial notch articulates with
Radius
Medial vs. lateral on ulna
Radial notch faces lateral
Radius
The lateral bone of the lower arm
Proximal vs. distal on radius
Round end is proximal
Ulnar notch
Smooth side of distal end of radius
Medial vs. lateral of radius
Ulnar notch sits medial
Radial tuberosity
Bump of proximal side of radius
Posterior vs. anterior on radius
Radial tuberosity sits anterior
Carpals
8 small bones on proximal side of hand
Wrist has a large range of motion but
Not much stability
Metacarpals
Lower finger bones; we have 5
Phalanges
Thumb has two phalanges, and we have 3 besides that
Sternal end
The flat square end of clavicle; articulates with sternum
Medial vs. lateral on clavicle
Sternal end is medial
Posterior vs. anterior on clavicle
Curve moves anterior then posterior (out then in)
Superior vs. inferior on clavicle
Smooth side that lays flat is superior
Infraspinous Fossa
Scapula; Posterior side of the scapula
Radial Styloid Process
Radius; Distal end, larger side that slopes down on lateral side
Superior Border
Scapula; Superior side, the top edge next to superior angle
Ulnar Tuberosity
Ulna; Raised edge on posterior side, close to proximal end
Acromial (lateral) end
Clavicle; Flat smooth end, lateral end
Radial Tuberosity (location)
Radius; Bump on anterior side and proximal end
Coronoid Process
Ulna; Posterior side on proximal end, medial area on olecranon, medial to radial notch
Sternal (medial) end
Clavicle; Flat square end, medial end
Radial groove
Humerus; Posterior side in middle of bone, posterior to deltoid tuberosity
Hamate
Carpal; Most medial bone on distal row (top row)
Radial notch
Ulna; Smooth area on lateral side of olecranon
Ulnar notch
Radius; medial side of distal end
Phalanges
Fingers, above the knuckles
Capitate
Carpal; Lateral to hamate on distal row
Acromion Process
Scapula; Connected to spine on posterior side
Subscapular Fossa
Scapula; Anterior side of scapula
Greater Tubercle
Humerus; Lateral to the head on proximal side
Trapezoid
Carpal; Lateral to capitate on distal row (top row); medial to trapezium
Medial Epicondyle
Humerus; Medial side of distal end
Inferior angle
Scapula; Inferior point
Trochlear notch
Ulna; The middle edge of the olecranon on anterior side
Pisiform
Carpal; Most medial on proximal row (bottom row)
Pollex
Thumb
Coronoid Fossa
Humerus; Medial hole on anterior side
Suprascapular notch
Scapula; Groove at the top of the scapula between coracoid process and superior border
Lunate
Carpal; Lateral to triquetrum and medial to scaphoid on proximal row (bottom row)
Conoid Tubercle
Clavicle; Bump on posterior side at the acromial end
Scaphoid
Carpal; Most lateral carpal on proximal row (bottom row)
Metacarpals
(5 total)
Head (ulna)
Ulna; Distal end of ulna
Lateral Border
Scapula; Lateral edge
Head of Hummerus
Humerus; Medial bump on proximal end
Triquetrum
Carpal; Lateral to pisiform and medial to lunate, “above” pisiform
Medial Border
Scapula; Medial edge
Styloid Process (ulna)
Ulna; Little bump next to head of ulna that sticks out
Head (radius)
Radius; Proximal end of radius
Supraspinous Fossa
Scapula; Inside tunnel area
Lesser Tubercle
Humerus; Anterior side on proximal end, smaller bump
Supraglenoid Tubercle
Scapula; Top of glenoid cavity
Intertubercular Sulcus
Humerus; Groove of the lesser tubercle makes this below it, on anterior side
Trapezium
Carpal; Most lateral bone on distal row (top row)
Lateral Epicondyle
Humerus; Lateral side of distal end
Capitulum
Humerus; Round bump on lateral side, anterior to lateral epicondyle
Superior Angle
Scapula; Medial corner on the superior side
Coracoid process
Scapula; Sticks out on anterior side
Radial fossa
Humerus; Anterior side, lateral to coronoid fossa
Deltoid tuberosity
Humerus; Anterior to radial groove
Trochlea
Humerus; Pointy thing that sticks out from distal end
Infraglenoid tubercle
Scapula; Below glenoid cavity
Abduction/Adduction
In the medial/lateral plane; in shoulder
Abduction
Away from midline
Adduction
Towards midline
Flexion/Extension
In anterior/posterior plane; in shoulder, elbow, and wrists
Flexion
Making joint angles smaller
Extension
Straight line; 180 degrees; anatomical position is fully extended
Hypertension
Past extension
Medial/lateral rotation
In shoulder
Medial rotation
Rotating inward to that palms face posterior
Lateral rotation
Rotating outward, back to anatomical position
Supination
Palms turn anterior at the forearms (not from shoulder), anatomical position
Pronation
Palms turn posterior at the forearms (not from shoulder)