Biomechanics Quiz Questions Skeletal Functions.txt

Card Set Information

Author:
Anonymous
ID:
240692
Filename:
Biomechanics Quiz Questions Skeletal Functions.txt
Updated:
2013-10-15 00:11:38
Tags:
asd
Folders:

Description:
asd
Show Answers:

Home > Flashcards > Print Preview

The flashcards below were created by user Anonymous on FreezingBlue Flashcards. What would you like to do?


  1. A lever in which the fulcrum is located in between the force acting on the lever and the resistance is called a ________
    first class
  2. A lever in the which the force acting on the lever is in between the fulcrum and the resistance is called a _______
    third class
  3. A lever in the which the resistance acting on the lever is in between the fulcrum and the force is called a ______
    second class
  4. When you perform the concentric contraction phase of a biceps curl, the forearm functions as a _______
    resistance
  5. When you perform the eccentric contraction phase of a biceps curl, the forearm functions as a ______
    applied force
  6. The joint that allows sliding planar movements between articulating bone surfaces is called ______
    gliding joints
  7. A joint which has the following characteristics "uniaxial, sagittal plane, medial-lateral axis" would be called a(n) ________ joint.
    hinge
  8. A joint which has the following characteristics (uniaxial, transverse plane, longitudinal axis) would be called a(n) _______ joint.
    pivot
  9. A joint which has the following characteristics "biaxial, one convex bone surface, one concave bone surface" would be called a(n) ______ joint.
    ellipsoidal
  10. A joint which has the following characteristics "biaxial, two convex bone surfaces" would be called a(n) ________ joint.
    saddle
  11. A joint which has the following characteristics "triaxial, one convex bone surface, one concave bone surface" would be called a(n) ______ joint.
    ball and socket
  12. Functionally, the elbow joint is a(n) _______ joint.
    hinge
  13. Functionally, the shoulder joints and the hip joints are ______ joints.
  14. Functionally, the radioulnar joints are ______ joints.
    pivot
  15. Which of the following are characteristics of synovial joints?
    Structure of Synovial Joints

    • articular capsule
    • -sleeve of liamentous tissue
    • -forms a joint cavity

    • synovial membrane
    • -inner surface lining of the articular capsule
    • -secretes synovial fluid, which fills the joint cavity

    • Has two types of articular cartilage
    • -hyaline
    • -fibrocartilage

    • improves the bone-to-bone fit at the joint
    • -increasing the joint's stability
    • -reducing pressure when the joint is loaded

    • reduce friction and prevents wear
    • provide some shock absorption
  16. Which of the following are functions of synovial fluid?
    lubricant - reduces friction

    nutrient - nourishes the articular cartilage which has no blood supply

    cleanser

    hydrostatic shock absorber
  17. Which of the following are functions of articular cartilage?
    hyaline cartilage - thin layer of cartilage that covers the articulating ends of the bones

    fibrocartilage - disc or partial disc of fibrocartilage that separates the articulating surfaces of the bones (the bearing surfaces between the moving bones)
  18. Which of the following increase joint stability?
    Increasing Shear Stability

    bone-on-bone compression - increases friction

    reciprocal convex and concave shapes of the articulating ends of bones - tighter the bone-to-bone fit

    articular cartilage - improves bone-to-bone fit

    fibrocartilage - produce convex regions
  19. Which of the following is not a factor that affects joint flexibility (i.e., range of motion)?
    articulating bones - the shapes of the articulating bones may limit range of motion

    ligaments - shortening and/or twisting of ligaments can limit range of motion

    bulkiness of soft tissues - a person with larger muscles or large amounts of fatty tissue

    friction within the joint - any wearing or damage to the articular cartilage increases joint friction

What would you like to do?

Home > Flashcards > Print Preview