Lec 2-9 Flashcards
The angle between articulating bones decreases in the sagittal plane
flexion
the angle between bones increases in the sagittal plane
extension
vertebral column bends in a lateral direction along the coronal plane
lateral flexion
lateral movement away from the midline of the body
abduction
lateral movement toward to the midline of the body
adduction
continuous movement in a circle
circumduction
rotation of the forearm where the palm is turned posteriorly (down)
pronation
rotation of the forearm where the arm is turned anteriorly (up)
supination
movement of a body part inferiorily
depression
movement of a body part superiorly
elevation
ankle joint movement where superior surface of the foot is brought up
dorsiflexion
ankle movement where the sole is pushed down
plantar flexion
turning sole of foot outward
eversion
turning sole of foot inward
inversion
anterior movement of body part from anatomic position
protraction
posterior movement of body part from anatomic position
retraction
special movement of the thumb across the palm to grasp an object
opposition
opposite of opposition
reposition
moving head left and right
bilateral rotation
Sides for articulation questions
left, right, alternating, bilateral
Relationship between mobility and stability
The more mobile, the less stable. The more stable, the more stable.
Another word for joint
Articulation
Study of joints
Arthrology
Two types of classifying joints
Structural classification, Functional classification
Joints classified by how they’re built
Structural classification
Joints classified by movement
Functional classification
Three functional classifications of joints
Synarthrosis, Amphiarthrosis, Diarthrosis
Functional classification of joint that is not mobile by direct conscious means
Synarthrosis
Functional classification of joint that is slightly mobile
Amphiarthrosis
Functional classification of joint that is freely mobile
Diarthrosis
Are Synarthrosis joints fibrous, cartilaginous, or synovial
Can be fibrous or cartilaginous
Are Amphiarthrosis joints fibrous, cartilaginous, or synovial
Can be fibrous or cartilaginous
Are Diarthrosis joints fibrous, cartilaginous, or synovial
All are synovial
Examples of synarthorisis joints
eg teeth, cranium
Examples of Amphiarthrosis joints
eg intervertebral discs, pubic symphysis
Examples of Diarthrosis joints
shoulder, hip
Types of diathroses from least to most mobile
Plane, Hinge, Pivot, Condylar, Saddle, Ball-and-socket
uniaxial flat joints, eg intercarpal joints
Plane
uniaxial joint eg knee
Hinge
joint eg C1-C2 joint
Pivot
joint eg metacarpal-phalange
Condylar
joint eg 1st metacarpal-phalange joint (thumb)
Saddle
acetabular, glenohumeral
Ball-and-socket
Three structural classifications of joints
Fibrous, Cartilaginous, Synovial
Structural classification of joint that has no joint cavity, Joined by ligaments
Fibrous
Structural classification of joint that has no joint cavity, joined by cartilage
Cartilaginous
Structural classification of joint that have a joint cavity, have hyaline cartilage, have synovial fluid
Synovial
Syndesmosis, sutures, gomphosis
Three types of Fibrous structural joints
Synchondrosis and Symphysis joints are examples of
Cartilaginous structural joints
All synovial joints are what type
diarthrosis
Fibrous joints held together by interosseous membrane eg radius-ulna, tibia-fibula
Syndesmosis
Fibrous joints that join two fixed plates eg skull joints
Sutures
Fibrous joints eg teeth to mandible/maxilla
Gomphosis
Cartilaginous joints held together by hyaline cartilage, eg ribs, sternum
Synchondrosis
Cartilaginous joints that have fibrocartilage, eg pubic symphysis, intervertebral discs
Symphysis joints
lubricates joints, viscous, oily substance secreted by synovial membrane, nourishes, hydrates, and bring nutrients to cartilage
Synovial fluid
dense, regular connective tissue, connect bone-to-bone, stabilize, strengthen synovial joints
Ligaments
Part of the knee made of fibrocartilage
Meniscus
Does cartilage have direct nerve or blood supply
no
fluid filled sac, filled with synovial fluid, reservoirs for synovial fluid and padding for tendons
Bursa
Between temple and mandible
temporomandibular joint
Shoulder joint, between glenoid fossa and humerus
glenohumeral joint
Joint that is most mobile and least stable
glenohumeral joint
Another name for acetabular joint
coxal joint
Arthritis that is wear and tear, degenerative joint disease
osteoarthritis
Arthritis that is caused by crystalized uric acid, typically attacks toes first, related to purine metabolism
gout
Arthritis that is an autoimmune disorder of the synovial membranes, divided into juvenile and adult RA
rheumatoid arthritis
Inflamation of the rib cartilage
costochondritis
What is articular cartilage made out of
hyaline cartilage
Connect bone to muscle
tendons
What are the rotator cuff muscles
distinct muscles and tendons that provide strength and stability during motion of the shoulder
What are the intracapsular ligaments of the knee
connect the femur and the tibia
What is the tibial collateral ligament
Medial collateral ligament (MCL) on the medial (inner) side of the knee joint in humans
What is the fibular collateral ligament
lateral collateral ligament (LCL), located on the lateral (outer) side of the knee