Tissues- study quide Flashcards
What are the four types of tissues found in humans?
Nervous tissue-brain, spinal cord , nerves
Connective tissue-fat and other soft padding tissue, bone, tendon
Epithelial tissue- lining of GI tract organs and other hollow organs, skin surface(epidermis)
Muscle tissue- cardiac muscle, smooth muscle , skeletal muscle.
what are the characteristics of epithelial tissue?
*Epithelial tissue, also referred to as epithelium, refers to the sheets of cells that cover exterior surfaces of the body, line internal cavities and passageways, and form certain glands.
what are the characteristics of connective tissue?
Connective tissue, as its name implies, binds the cells and organs of the body together and functions in the protection, support, and integration of all parts of the body.
what are the characteristics of nervous tissue?
Nervous tissue is also excitable, allowing the propagation of electrochemical signals in the form of nerve impulses that communicate between different regions of the body
what are the characteristic’s of muscle tissue?
Muscle tissue is excitable, responding to stimulation and contracting to provide movement, and occurs as three major types: skeletal (voluntary) muscle, smooth muscle, and cardiac muscle in the heart.
what is a desmosome?
Desmosomes occur in patches on the membranes of cells.
The patches are structural proteins on the inner surface of the cell’s membrane.
The adhesion molecule, cadherin, is embedded in these patches and projects through the cell membrane to link with the cadherin molecules of adjacent cells.
These connections are especially important in holding cells together.
what is a desmosome?
Desmosomes occur in patches on the membranes of cells.
The patches are structural proteins on the inner surface of the cell’s membrane.
The adhesion molecule, cadherin, is embedded in these patches and projects through the cell membrane to link with the cadherin molecules of adjacent cells.
These connections are especially important in holding cells together.
what is a tight junction?
forms an impermeable barrier between cells
what is a tight junction?
forms an impermeable barrier between cells
what is a gap junction?
allows cytoplasmic communications to occur between cells
in epithelial tissue, a thin layer of fibrous material that anchors the epithelial tissue to the underlying connective tissue; made up of the basal lamina and reticular lamina
basement membrane
what are epithelial membranes?
mucous membranes, serous membranes, and the cutaneous membrane, in other words, the skin.
