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Anatomy Lecture 8
Muscle Tissue
| Question | Answer |
|---|---|
| Basic properties of muscle tissue | Excitability, Contractility, Elasticity, Extensibility |
| Cardiac Muscle Shape | Y shaped or branched fibers |
| Cardiac Muscle Location | Heart mocardium |
| Cardiac Muscle # Nuclei | Uni or bi nucleated |
| Cardiac Muscle Control | Involuntary |
| Smooth Muscle Location | Walls of visceral organs |
| Smooth Muscle Shape | fusiform |
| Smooth Muscle Striations | Not striated |
| Smooth Muscle # nuclei | uninucleate |
| Skeletal Muscle location | connected to the skeleton |
| Skeletal Muscle cell shape | fiber-like and cylindrical |
| Skeletal Muscle # nuclei | multinucleated |
| Skeletal Muscle striations | striated |
| Muscle Type 1 | Skeletal Muscle |
| Muscle Type 2 | Cardiac Muscle |
| Muscle Type 3 | Smooth Muscle |
| Excitability | nerve can go to a muscle cell and excite it |
| Contractility | smooth muscle cell can shorten in length |
| Elasticity | after it lengthens it goes back to its original position |
| Extensibility | ability to stretch |
| Cardiac Muscle Striations | Striated 2 |
| Cardiac Muscle Special Features | Intercalated discs, auto-rhythmic |
| Smooth muscle control | involuntary |
| Smooth muscle special features | fatigue-resistant |
| skeletal muscle control | voluntary |
| Skeletal muscle special features | innervated at the neuromuscular junction, vascular |
| Functions of skeletal muscle pt 1 | movement, maintenance of posture, temperature reglation |
| Functions of skeletal muscle pt 2 | storage of materials, support abdominal organs, joint stabilization |
| Skeletal Muscle build 1 | Endomysium |
| skeletal muscle build 2 | perimysium |
| skeletal muscle build 3 | epimysium |
| skeletal muscle build 4 | deep fascia |
| skeletal muscle build 5 | tendon |
| Flat tendons are called... | aponeuroses |
| origin of a muscle is where... | less movable attachment site |
| insertion of a muscle is where... | more movable attachment site |
| Muscle Structure: MUSCLE GROUP | Connective Tissue Covering: DEEP FASCIA |
| MS: MUSCLE | CTC: EPIMYSIUM |
| MS: FASCICLE | ctc: PERIMYSIUM |
| ms: MYOFIBER | ctc: ENDOMYSIUM |
| ms: THICK AND THIN FILAMENTS | ctc: NONE |
| ms: MYOFIBRIL | ctc: NONE |
| ms: MYOSIN AND ACTIN PROTEINS | ctc: NONE |