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Lab 11 & 12
Articulations and Movements-Microscopic Anatomy and Skeletal Tissue
| Question | Answer |
|---|---|
| Synarthrosis | immobile between adjacent bones |
| Synarthrosis | skull sutures |
| Amphiarthrosis | intervertebral disks & pubic symphysis |
| Amphiarthrosis | slightly moveable between adjacent bones |
| Diarthrosis | freely moveable between adj. bones |
| Diarthrosis | Hip, knee, elbow, finger, & all big joints |
| Synarthrosis | connected by Fibrous CT |
| Syndesmoses | Fibrous CT immovable joint between ulna & radius |
| Gomphoses | Fibrous CT immovable joint between teeth & jaws |
| Synchondroses | fixed (immovable) hyaline cartilage, ex: epiphyseal line |
| Symphyses | slightly movable fibrocartilage; ex: intervertebral & pubic symphysis |
| Chondrose | cartilage |
| Articulations | Joints; where 2 bones meet |
| Plane SJ | flat/slightly curved surfaces, allowing bones to slight against each other |
| Plane SJ | carpals & tarsals |
| Hinger SJ | back and forth in one direct; flexion (bending) & extension (straightening) |
| Hinge SJ | elbow & knee |
| Hinge SJ | One articulating surface is convex, and the other is concave. |
| Plane SJ | small movement; gliding |
| Pivot SJ | one bone has a rounded/pointed surfaced that fits into the other bone's ring/notch; puzzles fitting |
| Pivot SJ | C1, C2, ulna, & radius (tip) |
| Saddle SJ | they fit tg like a rider sitting on a saddle |
| Saddle SJ | back & forth and side to side movements, & rotation |
| Saddle SJ | bone of thumb |
| Condyloid SJ | One bone has an oval-shaped condyle (rounded end) that fits into a shallow, oval-shaped depression of another bone. |
| Condyloid SJ | radius & carpals |
| Condyloid SJ | similar to saddle but less rotation |
| Ball and Socket SJ | One bone has a rounded “ball” end that fits into a cup-like “socket” of another bone. |
| Ball and Socket SJ | shoulder & hip |
| Shoulder joint | Glenohumeral joint; between head of humeral and glenoid cavity |
| Shoulder joint | largest ROM joint |
| Elbow joint | uniaxial (one plane) movement hinge joint; bends (flexion) & straightens (extensions) the arm |
| Elbow joint | between humerus' trochlea & ulna's trochlear notch |