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The Human Body (Tissue (Definition: an assembly of many cells to carry out…
The Human Body
Tissue
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Epithelial: line the cavities and surfaces of blood vessels and organs throughout the body. Functions; secretion, selective absorption, protection, transcellular transport, and sensing
Connective: Biological Tissue. consists of fiber, ground substances, and cells
Muscular: 3 types; skeletal, cardiac, smooth. Functions; posture and body support, locomotion, heat production
Nervous: main tissue component in the brain and spinal cord. Functions; regulates and controls bodily functions
Cells
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Cell specialization: occurs when a cell contains certain organelles or structures that allow it to perform a specific set of functions in an organism
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Organs
Definition: a part of an organism that is typically self-contained and has a specific vital function
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Lungs
consist of elastic sacs with branching passages into which air is drawn, so that oxygen can pass into the blood and carbon dioxide be removed
Liver
large lobed glandular organ in the abdomen of vertebrates, involved in many metabolic processes.
Organ Systems
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Homeostasis: ability of the body to maintain a stable internal environment despite changes in external conditions
maintaining homeostasis: Regulation of body temperature, blood pressure, pH, and glucose concentration