Tissues Flashcards
Tissues
a group of cells that are connected by junctions that form tissues
Junctions
Glue to hold cells together
Histology
study of tissues
Epithelial
cells are packed together; see this in body surfaces, blood vessels, and lungs
Simple squamous
single flattened layer of cells; seen in lungs; diffusion (muscles moving from a > to < concentration); filtration: seen in kidneys to get rid of waste
Simple cuboidal
seen in ovaries; ducts of kidneys; lumen: open space in a duct or hollow organ
Simple columnar
can possess cilia; some cannot (non-ciliated) depending on location; ciliated: found in fallopian tubes (found in female reproductive); moves eggs; also found in trachea which moves out particles; non-ciliated: have microvilli instead (for absorption); seen in stomach + intestines
Goblet cell
secretes gland mucus + unicellular
Pseudostratifed columnar
Found: lungs, trachea; + bronchioles; nuclei are uneven illusion of multiple layers; all cells are attached to basement membrane; has cilia for movement; goblet cells to secrete mucus
Stratified squamous
multiple layers of flat cells; seen in layers of skin; cervix/mouth (oral cavity)
Skin cell
filled w/ keratin protein
Transitional
Shape shifter (cuboidal -> squamous); uterus (stretches during pregnancy); bladder (stretches when peeing)
Stratified cuboidal
made up of 2+ layers; found in mammary glands, sweat glands, pancreas, female reproductive system
Stratified Columnar
2+ layers; primarily in ducts of kidney, male/female reproductive