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
Myo-joints & muscles
| Question | Answer |
|---|---|
| Functional Joints | Synarthrotic- immovable joint (sutures between skull bones)/ Amphiarthrotic- slightly movable (joints between vertebrae)/ Diarthrotic- free moving (shoulder) |
| Structural Joints | Fibrous-held together by fiber/ Cartilaginous-held together by cartilage/ Synovial-contain all components of synovial joints |
| 4 components of a synovial joint | 1- articular cartilage/ 2- articular capsule/sleeve/ 3- synovial membrane/ 4- synovial fluid/ |
| 6 types of synovial joints (A-the movement, B-the shape, C-example) | 1- Plane/gliding- A-least movement/back&forth/B- between 2 flat surfaces/C- joint between sternum and clavicle 2- Condyloid/ellipsoidal A- circumsuction B- convex and concave C- wrist 3- Saddle A- greater range of circumduction B- saddle like C- thum |
| What are muscles | Organs composed of fiber-like cells that contract, allowing movement |
| 3 types of muscle tissue | 1)Skeletal- voluntary- attached to our bones and moves them/ 2)Smooth- involuntary- contracts to move food and fluid/ 3)Cardiac-involuntary- contracts and pushes blood throughout the body |
| Functions of muscles | 1)Stabilize joints 2)Maintain posture 3)Generates 85% body heat 4)Moves bones 5)moves food and fluid |
| Structure of a skeletal muscle- Endomysium | Each individual muscle cell is enclosed in a connective tissue sheath |
| Structure of a skeletal muscle- Perimysium | Each fascicles, or group of muscle cells, is wrapped in a connective tissue sheath |
| Structure of a skeletal muscle- Epimysium | Many fascicles, bound together to form a muscle, wrapped in a covering |
| Components of a skeletal muscle - Sarcolemma | Cell membrane. Controls what enters/exits the cell |
| Components of a skeletal muscle - Myofibrils | Structural components of a cell that contact and shorten |
| Components of a skeletal muscle - Myofilament | Thread-like protein structure |
| Components of a skeletal muscle- Myosin, Actin, Sarcoplasmic reticulum | Myosin-thick myofilaments/ Actin- thin myofilaments / Sarcoplasmic reticulum- tubes and sacs surround each myofibrils stores calcium |
| Steps involving a sliding filament mechanism | 1) ACh- attaches to its receptor sites in the sarcolemma, allowing the sodium in 2) sacolemma-cell membrane- regulates what enters the cell 3) sodium- alters the electrical charge w/in the cell and causes and electrical signal to travel along to the Sar |
Created by:
Khughes1127
Popular Massage Therapy sets