SB - Test 2 answers Flashcards
Lec 4: muscles & lever systems Lec 5: Joint materials Lec 6: Mechanial properties of tissue Lec 7: Types of Joints
1
Q
- Wolff’s law dictates that _____
A
form follows function
2
Q
*Material deformation to a maintained load over time, which recovers after the laod is removed, is known as _____
A
creep
3
Q
- The internal reaction of a structure to an applied force (load) is referred to as ____
A
stress
4
Q
- The proposed mechanism of Wolff’s law is that bone, collagen and other crystalline and semi-crystalline materias have electrical fields which exhibit ______ properties
A
piezoelectric
5
Q
The tearing off of a piece of bone at the attached site of a tendon of lig. is known as a _____
A
alvusion
6
Q
- The failure of boney materials as the result of an applied load is known as ____
A
fracture
7
Q
- cartilage that is tough, very smooth, and occurs on joint surfaces to reduce friction is known as_______
A
Hyaline
8
Q
- Flat sacs of synovial membrane containing synovial fluid, intended to reduce friction btw adjacent moving structures is known as ______
A
bursae
9
Q
- In an open kinematic chain one end of the chain is _____ and the joint _____ others
A
fixed
can move independently
10
Q
The three arthrokinematic motions are _____
A
roll, slide & spin
11
Q
_______ class lever has mechanical advantage, disadvantage, or neural
A
first class lever
12
Q
_____ class lever is always at a mechanical advantage
A
second class lever
13
Q
___class lever is always at a mechanical disadvantage
A
third class lever
14
Q
Atlantoaxial joint is : uni / bi / triaxial
A
uniaxial
15
Q
distal interphalangeal joint : uni / bi / triaxial
A
uniaxial
