day 2 Flashcards
(26 cards)
classifications of articulations
fibrous suture
gomphosis
cartlilagainous synchondrosis
bony fusion synostosis
synarthrosis
no movement
this is the location where the bony edges are quite close together and may interlock
these extrememly strong joints are located where movement between the bones must be prevented
fibrous suture
suture (sutura or sewing together) synarthrotic joint only between the bones of the skull
edges of bones are interlocked and bound tohgether at the suture by dense fibrorous connective tissue
gomphosis
edimology- bolting together
binds the teeth together to bony socket in maxillae and mandible the fiborous connection between a tooth and its socket is a peridontal ligament
cartilaginous
together cartilage is a rigid, cartliaginous bridge between two articulating bones
acrti;igiosu connection between the ends of the first pair of vertebrosternal ribs and the sternum is a synchondrosis
bony fusion synostsis
totally rigid immoveable joint created when two bones fuse and the boundary between them disappears
joints
site of the union or articulation of two or more bones of cartliage
dipoel
spongy between the two layers of compact bone
Coronal suture
side cranium
syndesmosis
ulna radius interosseous membrane
anterior fontanelle
label picture
sphenoidal fontanelle
picture
posterior fontanelle
picture
mastoid fontanelle
picture
fontanelle closure sequence
posterior fontanelle generally closes 1-3 month after birth
sphenodial fontanelle is the next to close around 6 month
mastoid fontanelle closes next from 6-18 month after birth
anterior fontanelle last 7-19 month
amphiarthosis (
little movement
permits more movement that a synarthrosis, stronger and more freely movable joint
articulating bone are connected by collagen fiber or cartillage
fibrous syndesmosis
syndesmosis (band or ligament) bones are connected by a ligament. one example is the distal articulation between the tibila and fibula
cartliaginous symphysis
at symphysis the articulating bones are seperated by wedges or pad of fibrous cartilage
articulation between the two pubic bones is an example of symphysis
synovial
diarthoses= synovial joint allows the wider range of motion than the other types of joint typically located near the end of long bones such as those of the upper and lower limb
osteoarthritis
degenerative diseae
biochemical breakdown of the articular (hyaline)cartliage
not only involves the cartilage but the entire joint organ (plus subchondral bone and synovium)
Skeletal muscle
striated muscle fibers that are attached to bone and are responsible for movement of the skeleton
voluntary
produces the movement and facial expressions
cardiac muscle
striated muscle fibers that make up the walls of the heart and proximal portion of the great vessels.
label and identify desmosomes, mitochandrian nuculeus sarcolemma, intercalated discs gap junctions pump blood through heart involuntary
smooth muscles
non striated
ex. hair follicies and walls of blood vessel
walls of the hollow organs blood vessels and iris
moves contents through organs vasoconstriction
hypertrophy
nontumorous enlargement of an organ
increase in cell size not quantity