LG 1.2 histology of muscle Flashcards
Where is skeletal muscle tissue located?
combined with connective tissues and neural tissues in skeletal muscles
What is the function of skeletal muscle tissue?
moves or stabilizes the skeleton; guards entrances and exits to the digestive, respiratory, and urinary tracts; generates heat; protects internal organs
Describe the morphology of skeletal muscle tissue
cells are long, cylindrical, striated and multinucleate
Where is cardiac muscle tissue located?
the heart
what is the function of cardiac muscle tissue?
circulates blood, maintains blood pressure
describe cardiac muscle tissue morphology
cells are branched, and striated, usually with a single nucleus; cells are interconnected by intercalated disks (communications)
What is the function of smooth muscle tissue?
moves food, urine and reproductive tract secretions; controls diameter of respiratory passageways; regulates diameter of blood vessels
Where is smooth muscle tissue found?
walls of blood vessels and in digestive, respiratory, urinary, and reproductive organs
describe smooth muscle tissue morphology
short, spindle-shaped, and nonstriated with a single, central nucleus.
name the 2 cell-types in nervous tissue.
- neurons 2. neuroglia
Name general duty of a neuron
transmit electrical signals
What functions do neuroglia provide?
- these are the supporting cells of the neural tissue.
2. they provide Nutrition, Defense, Nerve fiber insulation, Blood brain barrier
