Chapter 8 PPT Flashcards
joints are functional
junctions between bones
joints bind
parts of skeletal system together
joints make
bone growth possible
joints permit parts of the skeleton to
change shape during childbirth
joints enable thebody to
move in response to skeletal muscle contractions
what are the structural classification of joints?
fibrous
cartilaginous
synovial
what are the functional classification of joints
synarthortic (immovable)
amphiarthrotic (slightly moveable)
diarthortic (freely moveable)
types of fibrous joints?
syndesmosis
suture
homphosis
Syndesmosis bones bound by
a sheet of dense connective tissue or a bundle of dense connectivetissue
syndesmosis fibrous joints are
amphiathrotic (flexible, may twist)
syndesmosis fibrous joints lie between
tibia and fibula
suture fibrous joints are between
flat bones of skull
suture fibrous joints contain a
thin layer of connective tissue to connects bone
suture fibrous joints are
synarthortic (immoveable)
gomphosis fibrous joints description
cone-shaped bony process I a socket in awbone .
gomphosis fibrous joint located in
tooth in jawbone by periodontal ligament
gomphosis fibrous joints are
synarthortic (immoveable)
cartilaginous joints are connected by
hyaline cartilage or fibrocartilage
cartilaginous joints type
synchondrosis and symphysis
synchondrosis feature bands of
hyaline cartilage that unite bones
synchondrosis - some are temporary such as
epiphyseal plate
synchondrosis located between
manubrium and first rib
symphysis is a pad of
fibrocartilage between bones
symphysis articular surfaces covered by
hyaline cartilage
symphysis has what type of movement?
amphiathrotic (limited movement)
symphysis located where?
pubic symphysis
symphysis is a joint between
bodies of adjacent vertebrae (intervertebral discs)
Most joints are
synovial joints
All joints are
diarthrotic joints
structure of synovial joint - articular cartilage covers
articular ends of bones
structure of synovial joint - joint capsule consists of what 2 layers
out fibrous layer , composed of ligaments
inner layer, synovial membrane, which secretes synovial fluid
what parts do synovial joints contain?
articular cartilage joint capsule ligaments synovial membrane, cavity, and fluid Meniscus in some joints bursa in some joints
What types of synovial joints are there?
Ball-And-Socket Joint Condylar Joint Plane Joint Hinge Joint Pivot Joint Saddle Joint
Ball-And Socket Joint also called a
Spheroidal Joint
Ball-And Socket Joint form a
round head in cup-shaped cavity
Ball-And Socket Joint motion
widest range of motion
Ball-And Socket Joint axis movement
multiaxial, plus rotation
Ball-And Socket Joint location
hip and shoulder
Condylar Joint also called
ellipsoidal joint
Condylar Joint form a
oval condyle fits into elliptical cavity
Condylar Joint movement
back and forth, side to side
Condylar Joint axis movement
biaxial movement, no rotation
Condylar Joint location
located between metacarpals and phalanges
Plane Joint also called
gliding joint
Plane Joint description
also flat, or slightly curved
Plane Joint motion
back and forth and twisting
Plane Joint movement
nonaxial movement
Plane Joint location
wrist and ankle joints
Hinge Joint description
convex surface fits into concave surface of other bone
Hinge Joint movement
uniaxial movement (in 1 plane)
Hinge Joint located in
elbow, joints between phalanges
Pivot Joint also called
trochoid joint
Pivot Joint description
cylindrical surface rotates within ring of other bone
Pivot Joint axial movement
uniaxial movement
Pivot Joint rotation
rotation only
Pivot Joint location
Atlas (C1) and the dens of Axis (C2)
Saddle Joint also called
sellar joint
Saddle Joint description
both bones have concave and convex surfaces
Saddle Joint axis movement
biaxial movement (in 2 planes)
Saddle Joint location
carpal and metacarpals of thumb
relatively fixed end of a skeletal muscle is called
origin
more moveable end of a skeletal muscle is called the
insertion
what kind of synovial joint is the shoulder joint?
ball and socket
what makes up the shoulder joint?
head of humerus, and glenoid cavity of scapula
what kind of capsule makes up shoulder joint?
loose joint
shoulder joint- ligaments prevent
displacement
shoulder joint movement
very wide range of movement, including rotation and circumduction
Major ligaments of shoulder joint?
coracohumeral
Glenohumeral
Transverse Humeral
elbow joint contains what 2 articulations
Hinge Joint
Plane Joint
Elbow Joint - Hinge Joint location
between trochlea of humerus and trochlear notch of ulna
elbow joint - Hinge joint movement
flexion / extension only
elbow join - plane joint location
between capitulum of humerus and fovea on head of radius
elbow joint - plane joint movement
pronation / supination
elbow joint - plane joint contains several
reinforcing ligaments
major ligaments of elbow joint
radial collateral ligament
ulnar collateral ligement
anular ligament
hip joint contains what type of synovial joint?
ball and socket joint
hip joint location
head of femur and acetabulum of hip bone
hip joint movement
variety of movement, yet less than shoulder joint
major ligaments in hip joint
iliofemoral ligament (strongest ligament in body)
Pubofemoral ligament
ischiofemoral ligament
what type of materials are used to replace joints damaged by arthritis or injury?
synthetic
what is used to replace larger joints?
steel and titanium
what is used to replace smaller joints?
silicone, and some are ceramic
knee joint is
the largest and most complex joint
knee joint contains what three bones?
femur , tibia, patella
knee joint - femur location
medial and lateral condyles of distal end
knee joint - tibia location
medial and lateral condyles of proximal end
knee joint - patella location
articulates with anterior surface of femur
knee joint cushioned by
bursae, fat pads
knee joint joint type
modified hinge joint between condyles
knee joint movement
flexion/extension
knee joint rotation
some rotation when knee is flexed
knee joint - plane joint between
femur and patella
what are sprains?
tearing of connective tissue in joint, without bone dislocation
what is bursitis
inflammation of a bursa , from overuse or stress
what is arthritis
inflammation, swelling and pain in a joint
what is rheumatoid arthritis
autoimmune disease
what is osteoarthritis
degenerative, most common type, occurs with aging
what is lyme arthritis
caused by Lyme disease, passed through tick bite
Moving a part away from the midline of the body is
abduction
Moving a part toward the midline of the body is
adduction
Decreasing the angle between two parts at a joint is
flexion
Increasing the angle between two parts at a joint is
extension
Movement at the ankle that decreases the angle between the foot and shin is
dorsiflection
Movement at the ankle that increases the angle between the foot shin is
plantar flexion
When a part moves on its axis it is
rotation
Circumduction is moving a part in a
circular motion
Turning the palm upward by rotating the forearm is
supination
Turning the palm downward by rotating the forearm is
pronation
Moving the sole of the foot to a lateral facing is
eversion
Moving the sole of the foot to a medial facing is
inversion
. Forward movement of a part is
protractions
backward movement of a part is
protraction