The Physiology of Epithelial and Connective Tissues

what is tissue?

epithelial tissue

Key physiological function: protection

key physiological function: permeability control and selective transport

key physiological function: secretion

key physiological function: rapid cell replacement

anatomy: highly cellular

anatomy: vascular

anatomy: polarity

tight junction

anchoring junction

gap junction

classification of epithelial tissue

simple squamous

simple cuboidal

simple columnar

pseudostratified ciliated columnar

goblet cells

why is simple squamous tissue ideally suited for lining alveoli in the lungs and capillaries?

A. Its thin, flat cells minimize diffusion distance for rapid exchange

B. Its thick layers protect against abrasion

C. Its tall, column-shaped cells allow secretion of mucus

D. Its thin, flat cells provide strong protection against mechanical stress

A pentose sugar is part of a monomer to build which type of macromolecule?

. Polysaccharide

. Glycogen

. Phosphorylated Glucose

. Nucleic Acid

What facilitates the movement of ions across the plasma membrane?

. Simple diffusion

. Channel Proteins

. Transport proteins

. Osmosis

specialized structure

cilia

- hair-like

- found in respiratory tract

- move substances across cell surface

microvilli

- finger-like

- found in intestinal lining

- increase surface to absorption and secretion

stratified squamous

transitional epithelium

glandular epithelium

glandular structure

connective tissue

key function: support and connection

key function: protection

key function: transport

anatomy: Abundant extracellular matrix

anatomy: ground substance

cell type: fibroblasts