Histology Lab Flashcards
The four principal groups of tissue are
Epithelial, connective, muscle, nerve
Blood and lymph are typically considered a type of ____ tissue
Connective
Epithelial tissue is composed of
Sheets of tightly packed cells
Little intercellular substance
Epithelial tissue serves to
Prevent fluid loss, infection, and mechanical issue
Epithelial cells may appear as flat discs ____, square blocks _____, or masonry bricks ____.
Flat discs: squamous
Square blocks: cuboidal
Masonry: columnar
Glandular epithelial are
The epithelial that line organs and may absorb/secrete chemical solutions
Connective tissue primarily serves to
Support parts of the body and keep it together
Unlike epithelial tissue, connective tissue is spaced
Widely apart from each other
The most widespread connective tissue in the mammalian body is
Loose connective/aeroaler tissue
Fibers bind ___ tissue within the ECM
Epithelial
Adipose tissue help bind connective tissue to ECM. Additionally they
Store fat molecules
Fibrous connective tissue contains collagen fibers, which are responsible for
Maximizing non elastic properties and strength of tendons and ligaments
Cartilage contains a protein carbohydrate complex called
Chrondoiton sulfate
Osteoblasts are
Calcified cartilage that formed due to bone forming
Calcium, magnesium, and phosphate interact to form ___ in the collagen matrix
Hydroxyapatite
Blood is considered connective, it’s matrix is ___ rather than fibrous
Fluid
Muscle tissue is composed of
Long cells known as muscle fibers
Muscle fibers are made up of
Parallel bundles of fibers called myofibrils
The two major cells of muscle fibers are
Acting and myosin
The three types of muscle are
Smooth, skeletal, cardiac
Nerve tissue transfers
Information from one part of the body to another
Single nerve cells, or neurons, combine to form highly complex groups called
Ganglia
The cell bodies of individual neurons have extensions called
Dendrites and axons
Dendrites and axons send
Signals called nerve impulses to other tissue
The __ make up the CNS
Spin cord and brain
Multipolar neurons possess axons and dendrites, which
Communicate with other nervous system cells
Spaces between neurons are composed of
Smaller supporting glia
The central lumen of of the arteries and veins distinguish them from
Nerve fibers
A layer of ___ separate arteries and veins from other cells
Elastic connective tissue