Topic 2 Terms List Flashcards
Epithelial Tissue
Tightly packed cells that cover and line body surfaces, relies on diffusion for nutrition and waste removal
Connective Tissue
Widely scattered cells with plenty of intercellular space and substance (matrix)
Muscle Tissue
Excitable and Contractile Tissue
What are the 3 subclasses of Muscle Tissue?
Skeletal, Cardiac, and Smooth Muscle
Nervous Tissue
Excitable tissue used to send short-term signals to specific targets
Lumen
Surface
Apical Surface
Edge towards the external layer of the cell
Basal Surface
Bottom edge of the cell
Basement Membrane
Delicate membrane that the basal surface is attached to
What does simple mean?
1
What does squamous mean?
Squished
What does stratified mean?
Many Layers
What does cuboidal mean?
Cube Shaped
What does columnar mean?
Column Shaped
What does Pseudostratified mean?
False Layers, will look like there is multiple layers but there’s not
Cilia
Waves back and forth and can move things around
Keratinized
Has extra layer (thick skin)
Non-Keratinized
Doesn’t have the extra layer
Transitional Epithelium
Permits expansion and recoils after stretching
Endocrine Gland
Secretes product (hormones) directly into blood, no ducts
Exocrine Gland
Secretes through ducts, product goes to the surface
Merocrine
Product is released from the secreting vesicles by a process known as exocytosis
Apocrine
Loss of cytoplasm, along with loss of secreting product
Holocrine
Destroys the cell, was packed with secreting product then burst
Matrix
Things are embedded in or fills a space
Extracellular
Outside of cells
Elastin Fibers
Stabalize position of vertebrae, permits expansion and contraction of organs
Collagen Fibers
Branching bundles of indefinite length
Reticular Fibers
Form “stroma”
Ground Substance
Clear, colorless fluid that fills the space between cells and fibers
Fibroblasts
Secrete collagen proteins that are used to maintain a framework for tissues
Mesenchyme
Embryonic Connective Tissue
Loose CT
fills space between organs, cushions and stabalizes
What are the types of Connective Tissue?
Areolar, Adipose, Reticular
Areolar CT
Loosely organized elastic and collagen fibers
Adipose CT
accounts for most of the volume
Reticular CT
forms “stroma”