Explain how the structure of the items relate to their functions.

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Presentation transcript:

Explain how the structure of the items relate to their functions. Q.Q. 4/24/19 Explain how the structure of the items relate to their functions.

Ch. 40 Intro to Animal Form and Function

Form and Function Anatomy- The study of structures Physiology- The study of functions - There is a strong correlation between form and function.

Animal Form and Function Tissues: Groups of cells with a common purpose Types of tissues: 1. Epithelial- Sheets of cells, tightly packed together - Covers the outside of the body and lines organs and body cavities

Types of tissues: 2. Connective- Bind and support other tissues (a web of fibers) Collagenous- Nonelastic, keeps the skin where it is supposed to be Elastic- Keeps skin resilient and stretchy Reticular- Connected to collagen and connects it to other tissues Blood is considered a connective tissue! Bone, cartilage and adipose (fat) tissue are connective tissues

Types of tissues: 3. Muscle- The most abundant tissue type in mammals *skeletal, smooth, cardiac 4. Nervous- Senses and transmit information; coordinates responses Organs and Organ Systems- Organizes tissues into major functions

Animals use energy to sustain form and function Metabolic rate- Amount of energy an organism uses in a given amount of time

Thermoregulation Strategies SOURCE of heat decides what strategy

Endotherms “warm-blooded” Endothermic (regulator)- Bodies mainly warmed by cellular respiration. Have a fast metabolism in comparison with ectotherms. Smaller animals metabolize faster.

Ectotherms “cold-blooded” - Ectothermic (conformer)- Gains heat from external sources (ie- the sun)

Hibernation, Torpor, and Estivation Survival mechanisms to conserve energy in animals during extreme temperatures Activity is low and metabolism is very slow. Hibernation- heavy, voluntary sleep in long winters (bats, squirrels) Torpor – lighter sleep than hibernation; not voluntary (bears) Estivation - lighter sleep to avoid extreme heat/ summer/desert (crabs, crocodiles) Differences