Cell to Organism Flashcards
What are the 4 basic tissue types in all animals?
- Epithelial
- Neural
- Muscular
- Connective
Name some properties of Epithelial Tissue.
Line ALL body cavities, organ surfaces and blood vessels
Partly Avascular therefore dependent upon diffusion for nutrients
Name some properties of Neural Tissue.
Excitability
Conductivity
Resistance to Fatigue
“All or None”
Name some properties of Muscle tissue
Contractility Extensibility Elasticity Excitability Highly vascularized
Name some properties of Connective tissue
Vascular and Avascular
More extracellular matrix than cells
Can Replicate
Name the 3 important cell to cell junctions
- Desmosomes
- Tight (adherens) junctions
- Gap junctions
_____ Anchor cells together
Desmosomes
_____ Block movement of molecules between cells
Tight junctions
_____ Allow communication between cells
Gap junctions
_____ is maintenance of a relatively constant condition in the internal environment.
Homeostasis
_____ is dynamic state of homeostasis with capacity to shift the parameters of homeostasis during specific states such as growth, severe immune challenge, pregnancy, lactation, aging.
Homeorrhesis
_____ can be subdivided into two categories: Anabolism and Catabolism
Metabolism
_____ uptake and storage of substrates by tissue for growth, adding to reserves (protein synthesis, lipid synthesis, glycogen synthesis)
Anabolism
_____ utilization and mobilization of nutritional substrates through breakdown of complex compounds to smaller more simple compounds.
Catabolism
_____ is the ambient temp range when circulatory adjustments are sufficient to maintain a steady homeothermic state
Thermoneutral zone
