Week 4 Flashcards
What is the most common carpal bone fracture?
Scaphoid
What is avascular necrosis?
Avascular necrosis refers to the death of bone tissue due to a lack of blood supply
Interlocking surfaces
Increase stability
Flat surfaces
Minimal movement
Convex-concave surfaces
Increase movement
What aspect of the hand is wider?
The volatile aspect
What are the 2 wrist joints?
- Radiocarpal joint
2. Midcarpal and intercarapl joint
What is the structural classification of the radiocarpal joint!!
Bisexual ellipsiloid
What are the articulations of the radiocarpal joint?
The radius articulates witg the scaphoid and lunate
And
The triangular fibrocartilage complex articulates with lunate and triquetrum
Which row moves as a unit?
The distal row
Which row moves more independently
Proximal row
What bone is the reference point?
Capitate as it is least mobile
Name the 5 extrinsic ligaments
- Ulnar collateral ligament
- Radial collateral ligament
- Palmer radiocarpal igament
4 Palmer ulnocaroal ligament - Dorsal radiocarpal ligament
What does the Palmer radiocarpal ligament resist?
Extension
What does the dorsal radiocarpal ligament resist?
Flexion
Which carpal bone is the most stable?
Lunate
What is the structural classification of the 1st carpometacarpal joint
Synovial saddle
What is the structural classification of 2nd-4th carpometacarpal?
Synovial plane
What does the diencephalon consist of?
Thalamus and Hypothalamus
What is the function of the thalamus?
relays and processes sensory information and is ‘gatekeeper’
What is the function of the hypothalamus?
controls emotions, autonomic function and hormone production
what are the 4 functional areas of the frontal lobe?
- primary motor correct
- premotor cortex
- supplementary motor cortex
- frontal eye field
- broca’s area
What is the structural area of the primary motor cortex?
the precentral gyrus
What is the structural area of the premotor cortex?
posterior portion of middle and inferior frontal gyri
