PRACTICE QUIZ UNIT 13-14 Flashcards
What structural classification of joints do not have a synovial cavity
Fibrous and cartilaginous joint
Freely moveable joints
Diarthrosis
Which joint lacks joint cavity and is held by a fibrous connective tissue
Fibrous joint
Fibrous joint composed of a thin layer of dense irregular fibrous connective tissue between bones of skull
Suture
Functional class of suture
Synarthrosis
What type of joint is a epiphyseal plate in long bone
Synchondrosis
Where do all symphysis joints in human body occur
Axial skeleton
Do synovial joints include elastic cartilage
NO
What structures reduce friction in joints
Bursae and synovial fluid
Rounded pointed surface on one bone that articulates with ring formed partly by another bone and partly by another ligament
Pivot joint
Two different forces of lever
Effort and load
Ball and socket structural and functional
Diarthrosis and synovial
Synchondrosis structural and functional
Cartiliginous and synarthrosis
Hinge structural and functional
Diarthrosis and synovial
Syndesmosis structural and functional
Amphiarthrosis and fibrous
Symphysis structural and functional
Amphiarthrosis and cartilaginous
Saddle structural and functional
Diarthrosis and synovial
Suture structural and functional
Synarthrosis and fibrous
Pivot structural and functional
Diarthrosis and synovial
Condyloid structural and functional
Diarthrosis and synovial
Plane structural and functional
Diarthrosis and synovial
Motion will occur in a lever when…
When the effort that is supplies exceeds the load
If the trapezius inserts 6cm from fulcrum and the weight of the skull (8kg) is 8cm from fulcrum, how much effort does the trapezius have to provide to hold head in anatomical position
- Effort x effort arm = load x load arm
- Effort x 6cm = 8kg x 8cm
- Effort = 64/6
- Effort = 10.7kg
If the distance of the load from the fulcrum gets bigger what happens
If the distance of the load from the fulcrum gets bigger, the effort that is needed to support the load would also increase
