Zusammenfassung der Ressource
Tissues
- Intercellular
Junctions
- Tight Junctions
- close space between cells by
fusing cell membranes
Anmerkungen:
- ex. cells that line the small intestine
- Gap Junctions
- Form tubular channels between
cells that allow the exchange of
substances
Anmerkungen:
- ex. Muscle cells of the heart and digestive tract
- Desmosomes
- Bind cells by forming "spot
welds" between cell
membranes
Anmerkungen:
- ex. cells of the outer skin layer
- Muscle
- Muscle tissue contracts, moving
structures attached to it. Muscle cells are
also called muscle fibers.
- Connective
- Connective tissue connect,
supports, protects, provides
frameworks, fills spaces, stores
fat, produces blood cells, protects
against infection, and helps
repair damaged tissues.
- Nervous
- Found in the brain, spinal cord,
and peripheral nerves
- Epithelial
- Characteristics: Lack blood
vessels, cells readily divide,cells
are tightly packed together