Tissue Flashcards
Tissue
group or layer of similarly specialized cells that join together to perform certain specific functions
Histology
microscopic study of the structure, composition, and function of tissues
histologist
non-physician specialist who studies microscopic structure of tissues
Four main types of tissue
Epithelial, connective, muscle, nerve
Epithelial tissue
protective covering for all of the internal and external surfaces of the body. also forms glands
epithelium
specialized epithelial that forms the epidermis of the skin and the surface layer of mucous membranes
endothelium
specialized epithelial tissue that lines the blood and lamp vessels, body, cavities, glands, and organs
Connective tissue
support and connect organs and other body tissue
dense connective tissue
bone and cartilage, form the joints and framework of the body
adipose tissue
also known as fat, provides protective padding, insulation, and support
loose connective tissue
surrounds various organs and supports both nerve cells and blood vessels
liquid connective tissue
blood and lymph, transport nutrients and waste products throughout the body
Muscle tissue
contains cells with the specialized ability to contract and relax
Nerve tissue
contains cells with the specialized ability to react to stimuli and conduct electrical impulses
Aplasia
defective development, or the congenital absence, of an organ or tissue
a means without, -plasia means formation
Hypoplasia
incomplete development of an organ or tissue usually due to a deficiency in the number of cells
hypo means deficient, -plasia means formation
Anaplasia
change in the structure of cells and their orientation to each other
ana means backward, -plasia means formation
Dysplasia
abnormal development or growth of cells, tissues, or organs.
dis means bad, and -plasia means formation
Hyperplasia
enlargement of an organ or tissue because of an abnormal increase in the number of cells in the tissues
hyper beans excessive, -plasia means formation
Hypertrophy
general increase in the bulk of a body part or organ that is due to an increase in the size, but not in the number, of cells in the tissues
hyper means excessive, -trophy means development
