Module 4: Muscle Tissue Flashcards
Muscles have ____ cell concentration
HIGH
Muscles are _____ vascular
HIGHLY
3 types of muscle
- Cardiac Muscle
- Skeletal Muscle
- Smooth muscle
Skeletal Muscle:
D, F, L:
D: Long, cylindrical, multinucleate cells. Obvious striations
F: Voluntary movement
L: In skeletal muscle, attached to the bone and sometimes skin
Cardiac Muscle:
D, F, L:
Branching, striated, generally UNINUCLEATE cells that join at specialized junctions called intercalated discs
F: Contractions propel blood into circulation, INVOLUNTARY control
L: The walls of the heart
Smooth Muscle:
D, F, L:
D: Spindle-shaped elongated cells with central nuclei. NO striations.
Cells arranged closely to form sheets
F: Propel food/urine/baby along internal passageways. INVOLUNTARY CONTROL
L: Mostly in the walls of hollow organs (DIGESTIVE TRACT)