Activity 11 MUSCLE TISSUE Flashcards
Exhibits a high degree of contractility
Muscular tissue
Components of the cell’s are generally elongated and their shortening brings out contraction.
Muscular tissue
This tissue is responsible for all the movements of the animal body through contraction
Muscular tissue
Three types of muscles of vertebrates
Smooth
Skeletal
Cardiac
Involuntary muscle present only in the heart
Cardiac
Voluntary muscle attached to the skeleton
Skeletal
Involuntary muscle of internal organs
Smooth
Cells in this tissue are uniform in size and fusiform in shape
Smooth muscle tissue (visceral or unstriated)
The oval nucleus is located in the
middle-expanded portion of the pinkish cytoplasm.
the fibers that have fused ends and have longitudinal lines
fibrillae
the contractile parts of the muscle fiber.
myofibrils,
The cells are cylindrical and very much elongated.
Skeletal muscle tissue
Condition in which several nuclei are found in each cell
Syncytium
exhibits dark and light bands or striations that are clearly seen by moving the fine adjustment.
Myofibril
The light bands on the muscle fiber are called
Isotropic bands
Dark bands are
Anisotropic bands
Type of muscle found in the heart
Cardiac muscle
This type of muscle is similar, to that of the skeletal muscle because the myofibrils are also striated. but the striation is finer than the skeletal muscle
Cardiac muscle
There is only one nucleus in each muscle cell and the nucleus is centrally located
Cardiac muscle
It has intercalated disk that allows ions to move quickly from cell to cell.
Cardiac muscle
a specialized cell junction
Intercalated disk
Another term for cardiac muscle
Striated involuntary muscle