Chapter 42-Tissues Flashcards
(48 cards)
groups of cells that are similar in structure and function
tissues
3 germ layers
endoderm, mesoderm, ectoderm
embryonic tissues
germ layers
4 primary tissues
epithelial, connective, muscle, nerve
combinations of different tissues that form a structural and functional unit
organs
groups of organs that cooperate to perform the major activities of the body
organ systems
The vertebrate body contains ___ principle organ systems.
11
inner tube
digestive tract
outer tube
main vertebrate body supported by skeleton
outermost layer
skin and accessories
inside of the body there are ___ identifiable cavities
2
dorsal body cavity
within the skull and vertebrae
ventral cavity
extends anteriorly from the area bounded by the rib cage and vertebral column posteriorly to the area contained within the ventral body muscles and the pelvic girdle
thoracic cavity
contains the heart and lungs
abdominopelvic cavity
contains many organs including stomach, intestines, liver, kidneys, and urinary bladder
pericardial cavity
thin space within mesodermal layers around the heart
pleural cavities
two thin spaces around the lungs
peritoneal cavity
coelomic space
epithelial tissue
covers every surface of the vertebrate body; tightly bound together to provide protective barrier; posses regenerative powers replacing cells throughout life; can come from any of the three germ layers
Membrane that connects epithelial tissues to connective tissues
fibrous membrane
basal surface
secured side of the epithelium
apical surface
free side of the epithelium
Epithelia have inherent _________ which is important for their function.
polarity
2 general classes of Epithelial Tissue
simple and stratified
