Exam #1 - Upper Limb Flashcards
Sternoclavicular Joint type
Saddle
SCJ Degrees of Freedom
Osteokinematics
3
Function of SCJ
Place scapula in position to accept head of humerus
SCJ close-pack position
Max shoulder elevation and protraction
SCJ open-pack position
Arm resting by side
Osteokinematics of the SCJ
Plane + Motion
frontal: elevation & depression
sagittal: axial rotation of clavicle
horizontal: retraction & protraction
Elevation of SCJ
Convex clavicle roll ______/______, slide _______/______ on the concavity of the sternum
Arthrokinematics
Convex clavicle roll superior/medial, slide inferior/lateral on the concavity of the sternum
Depression of SCJ
Convex clavicle rolls ____/____ and slides _____/_____ on the convexity of the sternum
Arthrokinematics
Convex clavicle roll inferior/lateral, slide superior/medial on the concavity of the sternum
Retraction of SCJ
Concave clavicle roll & slide ____
Arthrokinematics
Concave clavicle roll & slide posteriorly
Protraction of SCJ
Concave clavicle roll & slide ____ on the convexity of sternum
Arthrokinematics
Concave clavicle roll & slide Anteriorly on the convexity of sternum
Posterior rotation of SCJ
Posterior spin of the sternal end of the clavicle relative to the ____ surface of the articular disc
Arthrokinematics
Posterior spin of the sternal end of the clavicle relative to the lateral surface of the articular disc
Anterior rotation of SCJ
Anterior spin of the sternal end of the clavicle relative to the ____ surface of the articular surface
Arthrokinematics
Anterior spin of the sternal end of the clavicle to the lateral surface of the articular surface
The acromioclavicular joint is considered what type of joint
gliding/plane
ACJ degrees of freedom
Osteokinematics
3
Planes of motions of the ACJ
Osteokinematics
frontal
sagittal
horizontal
Function of ACJ
fine tunes position of scapula
ACJ close-pack position
90° ABDuction
ACJ open-packed position
arm resting by side
Scapular plane of ACJ
frontal plane
Osteokinematic of ACJ: upward & downward rotation
Natural component to ____&____ as well as ____&____
Natural component to abduction & flexion as well as adduction & extension
IR/ER in the horizontal plane of the ACJ is defined by
defined by the direction of rotation of the glenoid fossa
Sagittal plane of rotational adjustments of the ACJ
described as anterior tilting & posterior tilting
Scapulothoracic Joint is considered what type of joint
NOT considered a true joint
Function of scapulothoracic
Afford shoulder wide ROM available
Closed-packed position of Scapulothoracic
none
Open-packed position of Scapulothoracic
Arm by side,
Sacpula in 30-45° IR,
Slight UR,
5-20° anterior tilt
Occurs as a summation of SCJ & ACJ rotation
Arthrokinematics
Frontal: Elevation & Depression, Upward & Downward Rotation
Horizontal: Protraction & Retraction
Glenohumeral Joint is classified as what?
ball and socket
Degrees of freedome: GHJ
Osteokinematics
3
Function of GHJ
Operates in conjuction with moving scapula to produce extensive ROM of UE
Closed-pack position of GHJ
90° ABD and full ER
Full ABD and ER
Open-pack position; GHJ
55° ABD
30° horizontal ADD
Osteokinematics of GHJ
Plane + Motions
Frontal: ABD/ADD
Sagittal: Flx/Ext
Horizontal: IR/ER
Abduction of GHJ
Convex humerus roll ____/____ slide ____/____ on the concavity of the glenoid
Arthrokinematics
Convex humerus roll superior/medial & slide inferior/lateral on the concavity of the glenoid
Adduction of GHJ
Convex humerus roll ____/____ slide ____/____ on the concavity of the glenoid
Arthrokinematics
Convex humerus roll inferior/lateral slide superior/medial on the concavity of the glenoid
Flexion of GHJ
____ spin of humeral head about glenoid fossa
Arthrokinematics
Anterior spin of humeral head about glenoid fossa
Extension of GHJ
____ spin of humeral head about glenoid fossa
Arthrokinematics
Posterior spin of humeral head about glenoid fossa
External Rotation of GHJ
Convex humerus rolls ____ slides ____ on the concavity of the glenoid
Arthrokinematics
Convex humerus rolls posterior slides anterior on the concavity of the glenoid
Internal Rotation of GHJ
Convex humerus rolls ____ slides ____ on the concavity of the glenoid
Arthrokinematics
Convex humerus rolls anterior slides posterior on the concavity of the glenoid
Humero-ulnar joint is considered what type of joint?
Hinge joint (modified)
Humero-ulnar degrees of freedom
Osteokinematics
1
Osteokinematics of Humero-ulnar joint
Sagittal: Flexion/Extension
Humero-ulnar Function
Allows pulling, lifting, feeding, throwing, grooming, reaching & pushing activities
Humero-ulnar Closed-Pack Position
full extension
Humero-ulnar Open-Pack Position
70° flexion + 10° supination
Flexion of HUJ
Concave trochlear notch roll & slides ____/____ on the convexity of the trochlea
Arthrokinematics
Concave trochlear notch roll & slides anterior/superior on the convexity of the trochlea
Extension of HUJ
Concave trochlear notch roll & slides ____/____ on the convexity of the trochlea
Arthrokinematics
Concave trochlear notch roll & slides posterior/superior on the convexity of the trochlea
Extension of HUJ is coupled with
Osteokinematics
valgus & ulnar pronation
Extension + Valgus of HUJ
Convex ulna rolls ____ slide ____ on the concave of trochlea
Arthrokinematics
Convex ulna rolls lateral slides medial on the concave of trochlea
Extension + Ulnar Pronation of HUJ
Convex ulna rolls ____ slide ____ on the concave of trochlea
Arthrokinematics
Convex ulna rolls lateral slides medial on the concave of trochlea
Flexion of HUJ is coupled with
Osteokinematics
Valgus or Varus & Ulnar Supination
Flexion + Varus of HUJ
Convex ulna rolls ____ slide ____ on the concave of trochlea
Arthrokinematics
Convex ulna roll medial slide lateral on the concave trochlea
Flexion + Valgus of HUJ
Convex ulna rolls ____ slide ____ on the concave of trochlea
Arthrokinematics
Convex ulna roll lateral slide medial on the concave trochlea
Flexion + Ulna Supination of HUJ
Convex ulna rolls ____ slide ____ on the concave of trochlea
Arthrokinematics
Convex ulna roll medial slide lateral on the concave trochlea
Humeroradial Joint is considered what type of joint
Pivot (ball & socket, modified)
Humeroradial Joint degrees of freedom
Osteokinematics
Sagittal: Flexion/Extension
Horizontal: Pronation/Supination
Function of Humeroradial Joint
Provides 50% resistance against a valgus-producing force to the elbow
HRJ close-pack position
elbow flexed to 90° + forearm supination of 5°
HRJ open-pack position
full extension + full supination
Flexion of Humeroradial Joint
Concave radial head rolls & slides ____/____ on the convexity of the capitulum
Arthrokinematics
Concave radial head rolls & slides anterior/superior on the convexity of the capitulum
Extension of Humeroradial Joint
Concave radial head rolls & slides ____/____ on the convexity of the capitulum
Arthrokinematics
Concave radial head rolls & slides caudal/posterior on the convexity of the capitulum
Pronation of Humeroradial Joint
____ spin of the concave radial head about the convex capitulum of the humerus
Arthrokinematics
medial spin of the concave radial head about the convex capitulum of the humerus
Supination of Humeroradial Joint
____ spin of the concave radial head about the convex capitulum of the humerus
Arthrokinematics
lateral spin of the concave radial head about the convex capitulum of the humerus
Extension of HRJ is coupled with
Osteokinematics
Extension + Valgus
Flexion of HRJ is coupled with
Osteokinematics
Flexion + Valgus or Varus
Extension + Valgus of HRJ
Concave fovea of radius rolls & slides ____ on convex capitulum of humerus
Arthrokinematics
Concave fovea of radius rolls & slides lateral on convex capitulum of humerus
Flexion + Valgus of HRJ
Concave fovea of radius rolls & slides ____ on convex capitulum of humerus
Arthrokinematics
Concave fovea of radius rolls & slides lateral on convex capitulum of humerus
Flexion + Varus of HRJ
Concave fovea of radius rolls & slides ____ on convex capitulum of humerus
Arthrokinematics
Concave fovea of radius rolls & slides medial on convex capitulum of humerus
Proximal Radio-ulnar Joint is classified as what joint
Pivot
Proximal Radio-ulnar Joint degrees of freedom
Osteokinematics
Horizontal: Pronation/Supination
Proximal Radio-ulnar Joint function
facilitate forearm rotation
PRUJ close-pack position
5° supination
PRUJ open-pack position
70° flexion + 35° supination
Supination of PRUJ
Convex radial head rolls ____-____ slide ____-____ on concave radial notch of ulna
Arthrokinematics
Convex radial head rolls dorsal-lateral slide volar-medial on concave radial notch of ulna
Pronation of PRUJ
Convex radial head rolls ____-____ slide ____-____ on concave radial notch of ulna
Arthrokinematics
Convex radial head rolls volar-medial slide dorsal-lateral on concave radial notch of ulna
Distal Radio-ulnar Joint classified as what joint
Pivot
Distal Radio-ulnar Joint degrees of freedom
Osteokinematics
Horizontal: Pronation/Supination
Distal Radio-ulnar Joint Function
facilitate forearm rotation
DRUJ close-pack position
5° supination
DRUJ open-pack position
10° supination
Supination of DRUJ
Concave ulnar notch of radius roll and slide ____ on convex head of radius
Arthrokinematics
Concave ulnar notch of radius roll and slide dorsal on convex head of radius
Pronation of DRUJ
Concave ulnar notch of radius roll and slide ____ on convex head of radius
Arthrokinematics
Concave ulnar notch of radius roll and slide palmar on convex head of radius
Radiocarpal Joint is classified as what type of joint
Ellipsoid
Radiocarpal Joint degrees of freedom
Osteokinematics
Frontal: Ulnar/Radial Deviation
Sagittal: Flexion/Extension
RCJ close-pack position
extension + radial deviation
RCJ open-pack position
neutral + slight radial deviation
Ulnar Deviation of RCJ
Convex scaphoid, lunate, triquetrum rolls ____-____ and slides ____-____ on the concave radius
Arthrokinematics
Convex scaphoid, lunate, triquetrum rolls ulnar-proximal and slides radial-distal on the concave radius
Radial Deviation of RCJ
Convex scaphoid, lunate, triquetrum rolls ____-____ and slides ____-____ on the concave radius
Arthrokinematics
Convex scaphoid, lunate, triquetrum rolls radial-distal and slides ulnar-proximal on the concave radius
Extension of RCJ
Convex lunate rolls ____-____ and slides ____-____ on the concave radius
Arthrokinematics
Convex lunate rolls dorsal-distal and slides palmar-proximal on the concave radius
Flexion of RCJ
Convex lunate rolls ____-____ and slides ____-____ on the concave radius
Arthrokinematics
Convex lunate rolls palmar-proximal and slides dorsal-distal on the concave radius
Midcarpal Joint is classified as what type or joint
intercalated segment (S-shape)
MCJ close-pack position
extension + ulnar deviation
MCJ open-pack position
neutral or slight flexion + ulnar deviation
Midcarpal Joint degrees of freedom
Osteokinematics
Frontal: Ulnar/Radial Deviation
Sagittal: Flexion/Extension
Ulnar Deviation of MCJ
Convex capitate rolls ____ & slides ____ on concave lunate & scaphoid
Arthrokinematics
Convex capitate rolls ulnarly & slides radial on concave lunate & scaphoid
Radial Deviation of MCJ
Convex capitate rolls ____ & slides ____ on concave lunate & scaphoid
Arthrokinematics
Convex capitate rolls radial & slides ulnarly on concave lunate & scaphoid
Extension of MCJ
Convex capitate rolls ____ & slides ____ on concave lunate
Arthrokinematics
Convex capitate rolls dorsal & slides palmar on concave lunate
Flexion of MCJ
Convex capitate rolls ____ & slides ____ on concave lunate
Arthrokinematics
Convex capitate rolls palmar & slides dorsal on concave lunate
Carpometacarpal (Thumb) Joint is classified as what joint?
Saddle
Carpometacarpal (Thumb) Joint degrees of freedom
Osteokinematics
Frontal: Flexion/Extension
Sagittal: Abduction/Adduction
Also multiplanar: opposition/reposition
Carpometacarpal (Thumb) Joint Function
Enhances ____ of human prehension through the ability to ____
Enhances dexterity of human prehension through the ability to oppose
CMC close-pack position
full opposition
CMC open-pack position
midway between ABD-ADD & FLX-EXT (anatomical position)
Flexion of CMC Joint
Concave metacarpal roll & slide ____-____ on convex trapezium
Arthrokinematics
Concave metacarpal roll & slide ulnar-distal on convex trapezium
Extension of CMC Joint
Concave metacarpal roll & slide ____-____ on convex trapezium
Arthrokinematics
Concave metacarpal roll & slide radial-proximal on convex trapezium
Abduction of CMC Joint
Convex metacarpal roll ____-____ and slides ____-____ on concave trapezium
Arthrokinematics
Convex metacarpal roll palmar-proximal and slides dorsal-distal on concave trapezium
Adduction of CMC Joint
Convex metacarpal roll ____-____ and slides ____-____ on concave trapezium
Arthrokinematics
Convex metacarpal roll dorsal-distal and slides palmar-proximal on concave trapezium
Opposition of CMC Joint
ABD: Convex metacarpal rolls ____-____ slides ____-____ on concave trapezium
Flx: Concave metacarpal roll and slide ____-____ on convex trapezium
Med Rotation: Convex metacarpal spins ____
Arthrokinematics
Multiplanar
ABD: Convex metacarpal rolls palmar-proximal slides dorsal-distal on concave trapezium
Flx: Concave metacarpal roll and slide ulnar-distal on convex trapezium
Med Rotation: Convex metacarpal spins medial
Reposition of CMC Joint
ADD: Convex metacarpal rolls ____-____ slides ____-____ on concave trapezium
Ext: Concave metacarpal roll and slide ____-____ on convex trapezium
Lat Rotation: Convex metacarpal spins ____
Arthrokinematics
Multiplanar
ADD: Convex metacarpal rolls dorsal-distal slides palmar-proximal on concave trapezium
Ext: Concave metacarpal roll and slide radial-proximal on convex trapezium
Lat Rotation: Convex metacarpal spins lateral
Metacarpophalangeal (Thumb) Joint is considered what type of joint
Hinge
Metacarpophalangeal (Thumb) Joint degrees of freedom
Osteokinematics
Frontal: Flexion/Extension
Metacarpophalangeal (Thumb) Joint Function
Enhances ____ of human prehension through the ability to ____
Enhances dexterity of human prehension through the ability to opppose
Metacarpophalangeal (Thumb) Joint close-pack position
full extension
Metacarpophalangeal (Thumb) Joint open-pack position
slight flexion
Flexion of MCPJ
Concave phalanx roll and slide ____ on convex proximal phalanx
Arthrokinematics
Concave phalanx roll and slide ulnarly on convex proximal phalanx
Extension of MCPJ
Concave phalanx roll and slide ____ on convex proximal phalanx
Concave phalanx roll and slide radially on convex proximal phalanx
Interphalangeal (Thumb) Joint is considered what type of joint
Hinge
Interphalangeal (Thumb) Joint degrees of freedom
Frontal: Flexion/Extension
Interphalangeal (Thumb) Joint close-pack position
Full Extension
Interphalangeal (Thumb) Joint open-pack position
slight flexion
Flexion of IP Joint
Concave phalanx roll and slide ____ on convex proximal phalanx
Arthrokinematics
Concave phalanx roll and slide ulnarly on convex proximal phalanx
Extension of IP Joint
Concave phalanx roll and slide ____ on convex proximal phalanx
Arthrokinematics
Concave phalanx roll and slide radially on convex proximal phalanx
Scapulothoracic Junction is considered what type of joint
Pseudo joint
The entire shoulder complex functions as an intergrated unit ____ UE motion
The entire shoulder complex functions as an intergrated unite maximizing UE motion
Links the appendicular skeleton with the axial skeleton
Sternoclavicular joint
What joints arthrokinematics are not well defined
Acromioclavicular Joint
Motions of the Scapulothoracic Junction
- Elevation & depression
- Upward & downward rotation
- Protraction & retraction
The GH Joint relies on what subsystem of movement for stability
Active subsystem (force closure)
The design of the elbow & forearm adds to the ____ of the hand in space by ____ & ____ the upper extremity & by rotating the forearm
The design of the elbow & forearm adds to the mobility of the hand in space by shortening & lengthening the upper extremity & by rotating the forearm
What is the oblique orientation of the radial notch
Volar-medial to dorsal-lateral
Proximal row of carpal bones
- scaphoid
- lunate
- triquetrum
- pisiform
Distal row of carpal bones
- trapezium
- trapezoid
- capitate
- hamate
Contents of the capral tunnel
- Transverse carpal ligament
- pisiform
- hook of hamate
- scaphoid tubercle
- trapezium tubercle
- CV capitate & hamate
- CC scaphoid, lunate & triquetrum
Medial compartment
- CV scaphoid
- CC trapezium & trapezoid
Lateral compartment
Active abduction & adduction is very limited & therefore considered____ motions at the MCPJ & IP
Active abduction & adduction is very limited & therefore considered accessory motions at the MCPJ & IP