Joints Flashcards
any point in your body where two bones come together
joint
articulation
joint
types of articulation
Fibrous, Cartilaginous, Synovial
Types of Fibrous Joints
Sutures and Syndesmoses and Interosseous and Gomphosis
Fibrous Joints are made of
fibrous connective tissue
If it says fibrous
its strong, has collagen and fibrous connective tissue
Sutures are where and what kind of joint
fibrous joint and found on the skull
Interosseous joints are what and where
Fibrous joints and inbetween bone. Example joint inbetween radius and ulna. Where they come together.
Inter-
in between
Osseous-
bone
Inbetween radius and ulna what kind of joints are found?
fibrous interosseous joints
What type of joint is found typically between bone to bone
Cartilage
Synchondrosis
Chon- cartilage
an almost immovable joint between bones bound by a layer of cartilage, as in the vertebrae.
Types of cartilaginous joints?
Synchondrosis and symphyses
What joint holds the pubic symphyses together
cartilaginous symphyses
What type of synovial joints are there?
Plane, Pivot, Saddle, Hinge, Condyloid, Ball and Socke.
All of the synovial joints have
a synovial cavity
Synovial cavities are filled with? That helps with?
a synovial fluid that helps lubricates things
Bursae or Synovium does
slowly releases that synovial fluid when pressure is put on them.
Where are synovial joints found?
where we have freely movable bones coming together.
Freely moving joints always need what and why
a synovial fluid to lubricate them since they are always moving
Sutures
seams, very short interconnecting fibers
Syndesmoses
The bones are connected exclusively by ligaments, cords or bands of fibrous tissue
Gomphsoses
Peg in socket fibrous joint. Is a short periodontal ligament.
Articulation of the tooth with its boney alveolar socket
Gomphoses Joint
Synchondroses
a bar or plate of hyaline cartilage unites the bone at a sychondrosis “junction of cartilage”. Almost all are immovable.
Epiphyseal plates are an example of what joint
syncondroses
Costal cartilage of the first rib and the manubrium of the sternum have what joint
sychondroses- its immovable
Gliding
occurs when one flat or nearly flat bone surface glides over another. back and forth or side to side
waving your hand is an example of what motion
gliding
angular movements
increase angle or decrease angle between two bones .
Types of angular movements
flexion, extension, hypertension, abduction, adduction, and circumduction.
Flexion
going forward. is a bending movement, usually along the sagittal plane, that decreases the angle of the joint and brings the articulating bones together.
bending forward is an example of what movement
angular flexion movement
The arm is flexed at the shoulder when the arm is lifted in an anterior direction is an example of what movement
angular flexion movement
Extension
going back to anatomical position. the reverse of flexion and occurs at the same joints. It involves movement along the sagittal plane that increases the angle between the articulating bones. Typically straightens a flexed limb or body part.
Straightening a flexed limb or body part is an example of
angular extension movement
Straightening a flexed neck, body trunk, elbow, or neck.
angular extension movement
Hypertension
Going further back. continuing extension backwards.
Abduction
moving away from the midline
Adduction
moving toward the midline
circumduction
moving a limb in a circle
rotation
turning of the bone around its own long axis. can be directed toward the midline or away from
supination
radius and ulna are parallel
pronation
radius rotates over ulna
Dorsiflexion
lifting the foot so that its superior surface approaches the shin
plantar flexion
pointing the toes
protraction and reaction
nonangular anterior and posterior movements in a transverse plane
the mandible is jutted out
protraction
when you pull your mandible back
retraction
inversion
sole of foot turned medially
enversion
sole foot turned latterly
opposition
thumb touching the point of other fingers on the same hand. The saddle joint between metacarpal I and trapezium allows for this movement.
what allows for humans to grasp and manipulate objects
opposition
plane joint. what kind of joint, on what surface and what movement.
is a synovial joint. flat articular surface. nonaxial movement or gliding
hinge joint. what kind of joint, on what surface and what movement.
synovial joint. Cylinder and trough surface. uniaxial movement
pivot joint. what kind of joint, on what surface and what movement.
synovial joint. sleeve and axle. uniaxial movement
condylar joint. what kind of joint, on what surface and what movement.
synovial joint. oval articular surface. biaxial movement.
saddle joint. what kind of joint, on what surface and what movement.
synovial joint. articular surfaces are both concave and convex. biaxial movement.
ball and socket joint. what kind of joint, on what surface and what movement.
synovial joint. cup and head. multiaxial movement.
largest and most complex joint in the body
knee joint
how many joints and cavities does the knee joint have
three joints and one cavity
Joints of the knee
intermediate one; between the patella and the lower end of the femur. (Femoropatellar joint). Lateral and medial joints between the femoral condyles above and the c-shaped menisci or semilunar cartilages of the tibia below (tibiofemoral joint)
where is the menisci attached, so what happens easily
their outer margins, so theyre torn free