lecture 7 Flashcards
another name for radial tuberosity
biceptial tuberosity
head of the ulna is _____ the head of the radius is is ______
distal, proximal
ulnar notch of the radius is proximal or distal
distal
radial notch of the ulna is proximal or distal
proximal
netter 459 for O and I
some lovers try positions that they can’t handle (bones of the hands) (lateral to medial proximal to distal)
sphenoid, lunate, triquetrum, pisiform, trapezium, trapezoid, capitate, hamate
trapezium articulates with the ______
thumb
metacarpal bones articulate with ______
carpal
the thumb only has a ____ and _____ phalange
proximal, distal
the distal phalanges have a base, shafts, ____, and head
tuberosity
the phalanges have metacarpal, ____ phalanges, _____ phalanges, ______ phalanges
proximal, middle, distal
captin goes rrg
capitulum with radius
Radiohumeral joint Articulating Surfaces
Capitulum of the humerus
Head of radius
Ulnohumeral Articulating Surfaces
Trochlea of the humerus
Trochlear notch of the ulna
Radiohumeral & Ulnohumeral Joints joint classification
uniaxial hinge synovial
Radiohumeral & Ulnohumeral Joint movement
flexion extension
Radiohumeral & Ulnohumeral Joint movement plane
sagittal plane medial lateral axis
Ligaments of the Radiohumeral & Ulnohumeral Joints weak _____ and ______
anteriorly, posteriorly
Ligaments of the Radiohumeral & Ulnohumeral Joint extension limited by boney contact with the ____
olecranon process
a varus force is applied to the ___ aspect stressing the _____
medial, lateral aspect of the force
valgus is applied to the ____ aspect stresses the ____ aspect
lateral, medial
Medial/Ulnar Collateral Ligament 3 bands ___ ___ ___
anterior, posterior, oblique
Medial/Ulnar Collateral Ligament limits ____ force
valgus
Medial/Ulnar Collateral Ligament attaches medial humeral epicondyle to the ____ and _______
coronoid, olecranon processes
Lateral/Radial Collateral Ligament _____ shaped
fan
Lateral/Radial Collateral Ligament attaches ___ to _____
lateral humeral epicondyle to annular ligament
Lateral/Radial Collateral Ligament limits ___ force
varus
Proximal Radioulnar Joint Articulating Surfaces
1/5 of the head of radius
Radial notch of the ulna
Proximal Radioulnar Joint classification
- Uniaxial pivot synovial
Proximal Radioulnar Joint movement
pronation supination
Proximal Radioulnar Joint plane/ axis
mechanical axis of radius no plane
Annular Ligament: encircles the _____
radial head
Annular Ligament Forms ____ of the articular surface of the proximal radioulnar joint at any given time
4/5
Annular Ligament: Ensures congruency between the ___ , ____, ____
Ensures congruency between the radius, ulna and humerus
Annular Ligament Limits _________
inferior and lateral motion of the radius
Oblique Cord limits
Limits supination and inferior radial displacement
Subtendinous Olecranon Bursa between ___ and _____
olecranon of ulna and triceps tendon
Subcutaneous Olecranon Bursa Between _____ and ____
post aspect of olecranon and superficial fascia
Fat Pads of the elbow Outside synovial membrane (extrasynovial) _____
but inside capsule (intracapsular)
Middle/Intermediate Radioulnar Joint Articulating Surfaces
Medial interosseous border of radius, Lateral interosseous border of ulna
Middle/Intermediate Radioulnar Joint classification
Fibrous syndesmosis, amphiarthroidal
Middle/Intermediate Radioulnar Joint movement
pronation and supination
Ligaments of the Intermediate Radioulnar Joint Interosseous Membrane This fibre orientation is key in force dispersion during a _____
F.O.O.S.H. fall on an outstretched hand
Distal Radioulnar Joint Articulating Surfaces Ulnar notch of radius _____
Head of the ulna
Distal Radioulnar Joint classification
uniaxial, pivot synovial
Distal Radioulnar Joint movement
pronation, supination
Ligaments of the Distal Radioulnar Joint Encloses the joint but is deficient ____
superiorly
Anterior (Palmar/Volar) Radioulnar Ligament limits
supination
Posterior (Dorsal) Radioulnar Ligament: limits
pronation
Trifolar/Triradiate Cartilage or Disc Fibrocartilagenous disc located between the _____ of the radius and the ____
ulnar notch, ulnar styloid
Trifolar/Triradiate Cartilage or Disc is Key in_____ between the carpals, radius and ulna
shock absorption
the distal ulna does not articulate with the proximal row of carpals**
Radiocarpal Joint Articulating Surfaces: Distal radius and trifolar cartilage/disc ____, ____
Scaphoid, lunate
Radiocarpal Joint (Wrist) classification
- Biaxial condyloid synovial joint
Movements at Radiocarpal Joint
Flexion and Extension, Radial and Ulnar Deviation:
Radial and Ulnar Deviation: Joint plane axis
Occurs in coronal plane
Anterior-posterior axis rotation
Flexion and Extension: radiocarpal joint flex ext plane axis
Flexion and Extension:
Occurs in sagittal plane
Medial-lateral axis rotation
Anterior (Palmar) Radiocarpal Ligament:
Attaches _______
distal radius to carpals anteriorly
Anterior (Palmar) Radiocarpal Ligament: limits _____ & causes carpals, thus hand, to follow radius into ____
Limits extension, supination
Posterior (Dorsal) Radiocarpal Ligament: Attaches distal ____ and _____ to triquetrum and lunate posteriorly
radius, radial styloid
Posterior (Dorsal) Radiocarpal Ligament: limits
flexion
Anterior (Palmar) Ulnocarpal Ligament ___ bands
3
Anterior (Palmar) Ulnocarpal Ligament limits
Limits extension & controls carpal motion
Ulnar (Medial) Collateral Ligament: limits
radial deviation
Radial (Lateral) Collateral Ligament limits
ulnar deviation
Ulnar (Medial) Collateral Ligament attaches
ulnar styloid to triquetrum
anterior (palmar / volar) and posterior (dorsal) radioulnar ligament anterior fibers limit ______ posterior limits ______
supination, pronation
valgus: val going inside
lateral force stress on medial side
Intercarpal/Midcarpal Joint articulating surfaces
Proximal row of carpals: scaphoid, lunate, triquetrum Proximal row of carpals: scaphoid, lunate, triquetrum
Intercarpal/Midcarpal Joint classification
non-axial plane synovial joint
Movements Permitted at Midcarpal/Intercarpal Joint
Gliding Motions with Flexion, Extension, Radial and Ulnar Deviation:
***netters page 465 joint picture testable, slide 34
the interoussous ligaments attach which of the following, same row, opposite row
***Interosseous Ligaments Attach ______
Attach neighbouring carpal bones within the same row
1st Carpometacarpal (CMC) Joint Articulating Surfaces
Distal trapezium
Base of 1st metacarpal
1st Carpometacarpal (CMC) Joint Classification:
Biaxial saddle synovial joint
1st and 5th are both ____ joints
saddle joints
Movements at 1st CMC Joint plane rotated
90 degrees
Movements at 1st CMC Joint flex ext in what plane and axis
coronal plane ant post axis
Movements at 1st CMC Joint abduction adduction plane axis
sagittal medial-lateral axis
Movements at 1st CMC Joint opposition plane
does not occur in a plane
Ligaments of 1st CMC Joint Capsule ____ to allow for free motion
loose
Ligaments of 1st CMC Joint Ligaments of 1st CMC Joint Attaches ____ to lateral aspect of 1st MC
lateral trapezium
Anterior and Posterior 1st CMC Ligaments: Limit ___ and _____
extension and flexion
2nd-4th Carpometacarpal (CMC) Joint classification
2-4 are non-axial plane synovial joints
5th carpometacarpal joint classification
biaxial saddle synovial joint
CMC Joints 2-4: movement
flexion extension
cmc joint 5 movement
flex extension, abduction, adduction
Ligaments of the 2nd-5th Carpometacarpal (CMC) Joints 2-5 is ______
continuous
Intermetacarpal Joints articulating surfaces
Adjacent bases of metacarpals 2-5
Intermetacarpal Joints classification
Non-axial plane synovial
Intermetacarpal Joint movement permitted
gliding with movement of the cmc joints
Metacarpophalangeal (MCP) Joints Articulating Surfaces:
Heads of metacarpals, Bases of proximal phalanges
Metacarpophalangeal (MCP) Joints Classification:
Biaxial condyloid synovial joints
Movements Permitted at the Metacarpophalangeal (MCP) Joints
flexion, extension, abduction, adduction
Ligaments of the Metacarpophalangeal (MCP) Joints
Deep Transverse Metacarpal Ligament, Lateral/Radial Collateral Ligaments, Medial/Ulnar Collateral Ligaments
Ligaments of the Metacarpophalangeal (MCP) Joint limits
hyperextension
Interphalangeal Joint of Digit 1 Articulating Surfaces PIP:
Heads of proximal phalanx
Bases of distal phalanx
Interphalangeal Joint of Digit 1 classification
Uniaxial hinge synovial
Interphalangeal Joint of Digit 1 Movements Permitted:
flexion extension, no plane
Proximal Interphalangeal (PIP) and Distal Interphalangeal (DIP) Joints Digits 2-5 classification
uniaxial hinge
Movements at PIP and DIP Joints 2-5 ROM _____ toward the ulnar side
increases
Movements at PIP and DIP Joints 2-5 ROM is _____ at PIPs than DIPs
ROM is greater at PIPs than DIPs