The Biology of Animals

The Biology of Animals - The Biology of Animals Structure...

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The Biology of Animals Structure and Function Chapters 25, 29, 30 Bio 213
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Read Chapter 25 Organization: Tissues, Organs, Systems
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Biological hierarchy Cells – we are done with those for awhile! Tissues group of similar cells that do a particular job or A group of similar cells that do a particular job or function Organs Two or more tissues that work together to perform a particular function
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What are the four tissue types? Epithelium Body coverings and linings Nervous eceives stimuli, conducts impulses Receives stimuli, conducts impulses Connective Cartilage, bone, adipose, blood Muscle Moves the body
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What are the organ systems of the body?? Integumentary (skin) Nervous Lymphatic Respiratory Muscular Skeletal Circulatory Endocrine Digestive Urinary Reproductive
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Homeostasis “Staying the same” Sensory receptors detect a stimulus Integrator control center Effectors response
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Negative Feedback Loop Built in mechanism to maintain homeostasis Response reverses the effect Positive feedback b End result is an amplifying affect
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Transport System Chapter 29 Circulatory System
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Systemic Circuit op that carries blood capillary beds of head and upper extremities (to pulmonary circuit) aorta (from pulmonary circuit) heart pillary beds of other Loop that carries blood to and from body tissues capillary beds of other organs in thoracic cavity capillary bed of liver capillary beds of intestines
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Location of the Heart Heart is about size of a fist es in thoracic cavity between Lies in thoracic cavity between the lungs Enclosed in the pericardium
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Layers of Heart Wall Pericardium; heart sac Myocardium iddle layer middle layer cardiac muscle Endocardium; the inner lining of the heart
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Heart Structure Each side has two chambers Upper atrium wer ventricle Lower ventricle Valves between atria and ventricles In vessels leaving the heart
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Heart Valves three cusps two cusps right AV valve (tricuspid) left AV valve (bicuspid or mitral valve) right semilunar valve Heart from above with atria removed left semilunar valve
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The Biology of Animals - The Biology of Animals Structure...

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