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Ch 40 BIO
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What are the top part and the bottom part of epithelia called?
Apical surface and basal surface
What are the three types of connective tissue fibers?
Collagenous fibers, elastic fibers, reticular fibers.
Variation in animal body temp
Poikilotherm
: body temp varies with varying external environment
Homeotherm
: body temp relatively constant
Five general adaptations
help animals thermoregulate
1.Insulation
2.Circulatory adaptations
3.Cooling by evaporative heat loss
4.Behavioral responses
5.Adjusting metabolic heat production
Types of connective tissue
1. Connective tissue proper
-loose and dense
2. Special connective tissue
Loose connective tissue
Most widespread connective tissue in body. Binds epithelia to underlying tissues and holds organs in place. Consists of a loose weave of fibers.
Fibrous (dense) connective tissue
Dense with collagenous fibers that run in the same direction and are parallel to one another.
Special Connective Tissue
Blood, bone, cartilage
Cartilage
Consists of chondrin (extracellular gelatinous matrix) which may contain collagen. Interspersed with chondrocytes (which make the chondrin).
Bone
Collagen fibers of bone are surrounded by calcium salts. Haversion canal-> consists of blood vessels which supply osteocytes.
Cardiac muscle junctions are called what?
Intercalated disks.
Circadian rhythm
An animal's daily biological rhythm that changes certain homeostatic set points
Basal metabolic rate vs standard metabolic rate
Basal-> minimum metabolic rate for an endotherm
Standard->for ectotherm
Torpor
A physiological state of decreased activity and metabolism.
Author
mikepl103
ID
199241
Card Set
Ch 40 BIO
Description
Ch 40 bio
Updated
2013-02-16T19:06:37Z
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