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
Skeletal System 2
Skeletal System-Joints
| Question | Answer |
|---|---|
| Joints | Union between two or more bones Classified on basis of structural features: fibrous, cartilaginous, and synovial types |
| Joints innervation | Hilton's Law: HiNerve supplying joint also supplies muscles that move the joint and the skin covering the insertion of such muscles |
| Fibrous Joints | Synarthroses Joined by fibrous tissue, have no joint cavities, and allow little movement |
| Fibrous Connective Tissue Connect | Sutures- found between Flat bones of Skull Syndesmoses- occur as the inferior tibiofibular and tympanostapedial syndesmoses |
| Cartilaginous Joints | United by cartilage and have no joint cavity |
| Primary Cartilaginous Joints | Synchondroses United by HYALINE cartilage Do not allow movement but growth in the length of the bone |
| Primary Cartilaginous Joints Examples | Epiphyseal cartilage plates= union between epiphysis and diaphysis of growing bone Spneno-occipital and manubriosternal synchondroses |
| Secondary Cartilaginous Joints | Symphyses Joined by FIBROCARTILAGE Slightly movable joints |
| Secondary Cartilaginous Joints Examples | Pubic symphysis and interval disks |
| Synovial Joints | Diarthrodial Permit great degree of free movement Classified according to shape of articulation and/or type of movement |
| Synovial Joints: Plane (Gliding) Joints | United by two flat articular surfaces Allow simple gliding or sliding of one bone over another |
| Synovial Joints: Plane (Gliding) Joints Examples | In the proximal tibiofibular, intertarsal, intermetacarpal, sternoclavicular, and acromioclavicular joints |
| Synovial Joints: Hinge (Ginglymus)Joints | Resembles door hinge Allow only flexion and extension |
| Synovial Joints: Hinge (Ginglymus)Joints Examples | In the elbow, ankle, and interphalangeal joints |
| Synovial Joints: Pivot (Trochoid) Joints | Formed by central bony pivot turning within a bony ring Only allows rotation |
| Synovial Joints: Pivot (Trochoid) Joints Examples | In the superior and inferior radioulnar joints and in the atrantoaxial joint |
| Synovial Joints: Condylar (Ellipsoidal) Joints | Two convex condyles articulating with two concave condyles Shape of articulation is ellipsoidal Allow flexion and extension |
| Synovial Joints: Condylar (Ellipsoidal) Joints Examples | In the wrist (radiocarpal), metacarpophalengeal, knee (tibiofemoral), and atlanto-occipital joints |
| Synovial Joints: Saddle (Sellar) Joints | Resemble a horse's saddle Allow flexion and extension, abduction and adduction, and circumduction but no axial rotation |
| Synovial Joints: Saddle (Sellar) Joints Examples | In the carpometacarpal joint of th thumb and between femur and patella |
| Synovial Joints: Ball-and-socket (Spheroidal) Joints | Formed by reception of globular head into a cup-sapped cavity Allow movement in many directions: flexion and extension, abduction and adduction, medial and lateral rotations, and circumduction |
| Synovial Joints: Ball-and-socket (Spheroidal) Joints Examples | In the shoulder and hip joints |
Created by:
mmarino001
Popular Anatomy sets