Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
8 Cards in this Set
- Front
- Back
|
Sarcomere
|
-The filament do not extend the entire length of the myofibril. Instead they are compartments called sarcomeres.
-The basic CONTRACTILE UNIT within each myofibril |
|
|
Sarcomere continued
|
-Thick and thin filament overlap each other.
-The pattern consists of a variety of lines and bands that form a striations that make the muscle fiber look stripped |
|
|
Sarcomere Pattern
|
-M line
-Z line -H zone -A band -I band |
|
|
M line
|
-the middle of the sarcomere
-myosin tails are joined at the m line |
|
|
Z line
|
-separates each sarcomere from the next one
|
|
|
H zone
|
-area contains only thick filament
|
|
|
A band
|
-extends the entire length of the thick filament. Contains the region where the thin and thick filament overlaps
|
|
|
I band
|
-area contains only thin filaments. A Z line passes through the center of each I band
|
