Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Anatomy
Articulations and Movement
| Term | Definition |
|---|---|
| articulation | site where two or more bones meet (joint) gives skeleton mobility and hold together |
| functional classification | based on amount of movement occurring at the joint synarthroses, amphiarthroses, and diarthroses |
| synarthroses | no movement sutures of the skull |
| amphiarthroses | little movement acromioclavicular |
| diarthroses | freely movable glenohumeral, elbow, fingers |
| structural classification | based on what binds the bones together fibrous joints, cartilaginous joints, and synovial joints |
| fibrous joints | bones are united by collage fibers sutures |
| cartilaginous joints | bones are united by a plate of cartilage ribs of sternum, pubic symphysis |
| synovial joints | bones are separated by joint cavity very movable diarthroses |
| structure of synovial joint | articular cartilage, joint cavity, synovial fluid, joint capsule, and reinforcing ligaments |
| articular cartilage | hyaline cartilage found on the ends of long bones |
| joint cavity | space that surrounds the joint |
| synovial fluid | reduce friction nourishes cartilage cells |
| joint capsule | encloses the joint composed of fibrous capsule (outer layer of joint capsule) and synovial membrane (lines inside of the fibrous capsule) |
| reinforcing ligaments | strengthen and stabilize joint |
| bursae | sacs filled with synovial fluid that reduce friction |
| tendon sheaths | elongated bursae which wrap around tendons, reduce friction |
| sprain | a ligament is stretched or torn heal very slowly |
| dislocation | bones are forced out of alignment |
| temporomandibular joint (tmj) | formed by mandibular condyles of the mandible and the mandibular fossae of the temporal bones |
| shoulder (glenohumeral) joint | glenoid labrum: rim of fibrocartilage ligaments: glenohumeral ligament, acromioclavicular ligament, coracoacromial ligament, coracoclavicular ligament rotator cuff muscles: supraspinatus, infraspinatus, teres minor, subscapularis (SITS) |
| elbow joint | trochlea of humerus and trochlear notch of the ulna; capitulum of the humerus and head of the radius; radial notch of the ulna and head of the radius; olecranon fossa of the humerus and olecranon process of the ulna ligaments: ulnar collateral ligament; |
| hip joint | formed by head of femur and acetabulum of coxal bone acetabular labrum: circular rim of fibrocartilage ligaments: ligaments of the joint capsule (thickenings that help strengthen coxal joint); ligament teres (attaches head of femur to acetabulu, no role |
| knee joint | formed by medial & lateral condyles of femur and medial & lateral articular surfaces (condyles) of the tibia minisci: fibrocartilage disks (between tibial & femoral condyles) ligament: patellar ligament, medial collateral ligament (tibia), lateral colla |
| ankle joint | lateral malleolus of the fibula medial malleolus of the tibia talus anterior tibiofibular ligament posterior tibiofibular ligament anterior talofibular ligament posterior talofibular ligament calcaneofibular ligament medial (deltoid) ligament of a |
Created by:
hharki
Popular Anatomy sets