BSCI 2101 Exam 1 Chapter 4 Part 1 (4.1-4.4) Flashcards
(30 cards)
Unicellular Organism
independent little creatures in mutlicellular organism, cells form communities
Tissues
group of cells similar in structure and perform common/related function
Epithelial Tissue
Covers and Protects, sheet of cells that covers body surfaces/lines a body cavity
Connective Tissue
Supports bones and tendons
Muscle Tissues
Moves muscles and bones
Nervous Tissues
controls the body through the brain
Artifacts
tissues under microscope exposed to many procedures after original condition
Granular Tissue
create boundaries between different environments through protection, secretion, sensory reception
Apical Structure
not attached to surrounding tissue and exposed to outside of body/cavity of internal organisms
Basal Tissue
next to connective tissue, adjacent to basal lamina for selective filter
Desmosomes
keep cell together
Tight Junctions
to prevent passage of molecules and ions
Reticular Tissue
deep to basal, collagen protein fiber for underlying connective tissue
Epithelium
no blood vessels, supplied by nerve fibers
Single epithelia
single cell layer, absorption and filtration occurs, all of the same shape
stratified
- 2 cell layers stacked in high-abrasion where protection is important
Squamous cells
flat and scale like, with disc nucleus
Cudodial Cells
boxlike, tall and wide, spherical nucleus
Columnar Cells
tall and column-shaped, elongated to be cell base
Simple Squamous
Single layer of cells with disc-central nuclei and sparse nuclei
Simple Squamous Function
allow materials to pass through diffusion and filtration in sites where protection not important
Simple Squamous Location
kidney, air sacs, lungs, heart, blood vessels, lymphatic vessels
Endothelium
Silk, Friction reducing lining in lymphatic vessels in cardiovascular system
Mesolithium
found in serious membranes, line body cavity, covering organs