JOINTS AND CONNECTIVE TISSUE Flashcards
What is connective tissue and what does it provide?
Is a classification of tissue that all share a common molecular composition. It provides support, protection, and give structure to other tissues in body.
Examples of connective tissue in the body
Bones, cartiliage, tendons, joint capsules, fascia, blood and blood vessels
What is flexion
Decrease angle between body parts on either side of join
T or F: Skeletal muscle is connective tissue?
False
What is extension
Increase angle between body parts on either side of joint
what is abduction
movement away from midline
what is adduction
movement towards midline
what is medial rotation/internal rotation
Rotational moves towards midline
what is lateral/ external rotation
rotational movement away from midline
define elevation
move superiorly
define depression
move inferiorly
What are solid joints
No joint cavity present. Connected by stiff tissue. Little to no movement
what is synovial joints
have small cavities, which is surrounded by a joint capsule. Small cavity filled with synovial fluid which allows for movement
how many synovial joints are there?
seven
Plane joints:
Shape:
What motion:
Example:
flat or slightly convex/concave
sliding/gliding motion
AC joint (acromioclavicular joint)
convex definition
having an outline or surface curved like exterior of sphere
concave definition
having an outline ore surface that curves inward like interior of circle
Hinge Joint:
shape:
Plane:
Example:
surfaces are convex or concave
permits flexion/extension
humero-ulnar joint
pivot joint:
shape:
Plane:
Example:
one cylindrical bone rotates within concavity of other bone. permita rotation.
atlanto-axial joint
what is condyle
rounded bump at end of bones which forms articulation with other bone
bicondylar joint
shape
planes
what does it permit
examples
when 2 slightly convex bone surfaces fit into 2 slightly concave surfaces. When 2 condyles are present, rotation can occur. Allows movement in 2 planes. 1 full movement, other limited.Knee joint flexion extension/ rotation
condylar
AKA
shape
planes
what does it permit
examples
ellipsoid joint
when 1 slightly convex bone surface fits into slightly concave surface
does not allow for rotation when only one condyle is present
allows movement in 2 planes that are right angles to eachother.
TMJ
Saddle joint
shape
planes
what does it permit
examples
surfaces are saddle shape
allows movement in 2 planes
sternoclavicular joint (SC)
permits flexion, extension, adbuction, adduction
Ball and socket
shape
planes
what does it permit
examples
The rounded bone surface (ball) fits into socket of another bone surface. Allows movement in multiple planes
Hip joint
Flexion/extension, rotation, abduction/adduction
What is plantar flexion
Flex towards the plantar surface
What is dorsifelxion
Flex towards dorsal surface
