| Question |
Answer |
| ability of a muscle to shorten with force |
contractibility |
| capacity of muscle to respond to a stimuli |
excitability |
| muscle can be stretchedd to its normal resting length and beyond to a limited degree |
extensibility |
| ability of muscle to recoil to original resting length after stretched |
elasticity |
| cell membrane of a muscle cell |
sarcolemma |
| cytoplasm within the muscle cell |
sarcoplasm |
| membranous network of channels and tubules within the muscle fiber, corresponding to the endoplasmic reticulum of other cells |
sarcoplasmic reticulum |
| contractile figers within muscle cells |
myofibril |
| the strucutral and functional unit of myofibril |
sarcomere |
| the pigmented comound in muscle tissue that stores oxygen |
myoglobin |
| when a typical skeletal muscle is teased apart and viewd microscopically, it can be seen to consist of many elongated, cylindrical cells called ________ |
muscle fibers |
| 1 muscle fiber= |
1 skeletal muscle cell |
| membranous channel that extends inward from a muscle fibe membrane and passes through the fiber |
transverse tubule |
| consists of a T-tubule and the segments of sarcoplasmic reticulum on either side |
triad |
| fibrous connective tissue that separates each muscle fiber in skeletal muscle |
endomysium |
| skeletal muscle is composed of |
muscle cells, connective tissue, blood vessels, nerves |
| skeletal muscle fibers are ____ |
long, cylindrical, multinucleated |
| length of skeletal muscle |
1mm-4cm |
| skeletal muscle develops from ____, numbers remain ____ |
myoblast, constant |
| connective tissue sheet |
fascia |
| forms layer under the skin |
fascia |
| holds muscles together and separates them into functional grps |
fascia |
| carries nerves, blood vessels and lymphatics |
fascia |
| continuous with connective tissue of tendons and periosteum |
fascia |
| ___-->___-->___-->____-->____ |
muscle, fascicle, muscle fiber, myofibrils, thick and thin filaments |
| connective tissue covering muscles provide ___, sites for distribution of ___ and ___, and a means of ___ to skeleton |
protection, blood vessels, neurons, attatchment |
Poultry
