Articular System Flashcards
what is the articular system
-how bones move
-at which points bones move
connective tissues in the articular system
bone
cartilage
ligaments
tendons
fat pads
discs
bursa
function of cartilage
-supports framework for soft tissue
-resists deformation
-less brittle than bone
what is hyaline cartilage
-covers weight bearing ends of bone
-smooth, glassy
-poor healing
what is fibrocartilage, examples
-supports crushing weights
-intervertebral disks, menisci of knees, pubic symphysis
function of elastic cartilage, example
-supports soft structures, very flexible
-ear, nose
function of ligaments
connect bone to bone
structure of ligaments
-most are composed of dense collagenous tissue
-some pure elastic tissue
-overstretch injury
function of tendons
-connect muscle to bone or other structures
structure of tendons
-connective tissue fibers are parallel and closely packed
-fibers intertwine, form small bundles
-surrounded by connective tissue sheaths
-injury by overstretch/overuse, torn
what is an aponeurotic tendon/aponeurosis
-broad, flat tendon expansion for attachment to a large area or multiple areas
-ex: plantar fascia
bursa structure
-connective tissue spaces coalesce to form pocket- like accumulations of fluid
-between muscle and tendon
-between muscle and bone
bursa function
padding
protection
where is subcutaneous bursa located
-just beneath the skin
-ex: calcaneous, lateral malleolar
where is a subacromial bursa
shoulder