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Biology- Body Systems
The Articular System
60
Biology
10th Grade
11/17/2013

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Term
Articulation is....
Definition
union between two or more bones
Term
Synarthroses joints have....
Definition
no movement
Term
Amphiatthroses joints have...
Definition
slight movement
Term
Diarthroses or Synovial Joints have....
Definition
free movement, weight bearing, ex. are elbows, wrists, ankles, knees, hips, shoulders, ribs
Term
define suture and give an example (Synarthroses)
Definition
bones connected by thin layer connective tissue; skull
Term
define syndesmosis and give an example (Synarthroses )
Definition
connected by ligaments between bone; radius and ulna
Term
define gomphosis and give and example (Synarthroses )
Definition
conical process in a socket; teeth
Term
define symphysis and give an example(Amphiarthroses)
Definition
connected by disk of fibrocartilage; pubic symphysis
Term
define synchodrosis and give an example (Amphiarthroses)
Definition
connected by hyaline cartilage;growth plate between diaphysis and epiphyses, in vertebrae, between tibia and fibula
Term
The 6 types of diarhroses of synovial joints are (and define and give examples).....
Definition
ball and socket- ex. shoulder and hip
hinge- elbow and knee
pivot- rotation in one plane-ex. head, atlas, axis
condyloid-motion in two planes at right angles. Like an x and y axis. Ex radius and carpal bones
saddle- motion in two planes at right angles ex. only found in thumb
glidng- gliding motion, ex. intervertebral joints in spine
Term
Define bursae
Definition
closed sacs that prevent friction between tissue. Synovial membrane lignin.
Term
Bursae is found in the _______ layer of the skin.
Definition
subcutaneous
Term
define subfascial
Definition
between overlying muscles
Term
define subtendinous
Definition
between overlying tendons or bony projections
Term
Types of movement:
flexion and Extension
Definition
Flexion- to decrease the angle (show your muscles)
Extension- to increase the angle (put arm out straight)
Term
Types of movement:
Abduction and Adduction
Definition
Abduction- to move away (to kick out legs)
Adduction: to bring closer (to bring leg back in)
Term
Types of movement:
Circumduction
Definition
ball and socket joint, making a big circle in the air
Term
Types of movement:
Rotation
Definition
to rotate (atlas and axis)
Term
Types of movement:
Pronation and Supination
Definition
Pronation- laying down (taking palm and flip it over so palm is facing down)
Supination- (palm starts down, then flipped up)
Term
Special Movements:
Inversion vs. Eversion
Definition
Inversion- to bring inward (to point toes inward)
Eversion- to point away (moving foot outwards)
Term
Special Movements:
Dorsiflexion vs. plantar flexion
Definition
Dorsiflexion- (to dig heel into ground
Plantar flexion- (only toes digging into ground)
Term
Special Movements:
Opposition
Definition
movement of thumb
Term
Special Movements:
Protraction vs. Retraction
Definition
Protraction- thrusting (taking bottom teeth and biting upper lip)
Retraction- bring back
Term
Special Movements:
Elevation vs. Depression
Definition
Elevation- closing mouth
Depression- opening mouth (mandible goes down)
Term
Special Movements:
Lateral flexion
Definition
curves the spine. (when stretching)
Term
Define Supination
Definition
moves the forearm and hand so the radius and ulna are parallel and the palm faces up
Term
Define pronation
Definition
• Moves the forearm and hand so the radius and ulna are not parallel and the palm faces down; occurs when the palms are facing downward
Term
Define opposition
Definition
Movement that occurs only with the thumb and allows us to use tools; movement that occurs when the tip of the thumb and the fingers are brought together
Term
Define flexion
Definition
The act of bending or decreasing the angle between bones
Term
Define extension
Definition
Act of increasing the angle between bones
Term
Define retraction
Definition
Moving a part of the body backwards on a plane parallel to the ground
Term
Define protraction
Definition
Moving of a part of the body forward on a plane parallel to the ground
Term
Define depression
Definition
lowering of a body part
Term
Define elevation
Definition
raising of a body part
Term
Define dorsiflexion
Definition
Raising of the foot up at the ankle joint
Term
define plantar flexion
Definition
Pushing the foot down at the ankle joint
Term
define inversion
Definition
Involves moving the sole of the foot inward at the ankle
Term
define eversion
Definition
Involves moving the sole of the foot outward at the ankle
Term
define hyperextension
Definition
Increases the joint angle beyond the anatomic position
Term
define circumduction
Definition
Act of moving a bone in such a way that the end of the bone or limp describes a circle in the air
Term
define rotation
Definition
Act of moving around a central axis
Term
define reposition
Definition
Occurs when the digits return to their normal position
Term
define abduction
Definition
• Moving a bone or limb away from the middling of the body
Term
define adduction
Definition
• Moving a bone or limb back toward the midline of the body
Term
define protraction
Definition
• Moving a part of the body forward on a plane parallel to the ground
Term
define retraction
Definition
• Moving a part of the body backward on a plane parallel to the ground
Term
define pronation
Definition
• Occurs when the palms are facing down
Term
define supination
Definition
• Occurs when the palms are up
Term
define hinge joint
Definition
• Type of joint in which the movement is limited to flexion and extension in a single plane
Term
define ball and socket joint
Definition
multiaxial joint that moves in all directions
Term
define pivot joint
Definition
• Uniaxial joint limited to rotation in a single plane
Term
define suture
Definition
• An articulation united by a layer of fibrous tissue
Term
Define the disease fibrositis
Definition
• Inflammation of the fibrous connective tissue
Term
Define the disease synovitis
Definition
• Inflammation of the synovial membrane
Term
Deine the disease arthritis
Definition
inflammation of the whole joint
Term
define the disease bursitis
Definition
• Inflammation of a synovial bursa, which can be caused by excessive stress tension placed on the bursa
Term
define the disease gout
Definition
• Accumulation of uric acid crystals in the joint at the base of the large toe and other joints of the feel and legs
Term
define the disease rheumatism
Definition
• Term used to describe various conditions with pain or other symptoms
Term
define the disease rheumatic fever
Definition
• Disease involving a bacterial infection that is carried by the blood stream to a joint, resulting in rheumatoid arthritis
Term
define the disease osteoarthritis
Definition
• Degenerative joint disease that often occurs with aging and is common in overweight individuals
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