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Explain how water levels in the body influence the thirst cycle; Identify the main route by which water leaves the body; Describe the role of ADH and aldosterone and their effect on body water levels; Define dehydration and identify common causes of dehydration
Figure 26.1.2 – Fluid Compartments in the Human Body: The intracellular fluid (ICF) is the fluid within cells. The interstitial fluid (IF) is part of the extracellular fluid (ECF) between the cells. Blood plasma is the second part of the ECF. Materials travel between cells and the plasma in capillaries through the IF.
There are 12 major anatomy systems: Skeletal, Muscular, Cardiovascular, Digestive, Endocrine, Nervous, Respiratory, Immune/Lymphatic, Urinary, Female Reproductive, Male Reproductive, Integumentary. Select a system below to get started.
By the end of this section, you will be able to: Explain how water levels in the body influence the thirst cycle. Identify the main route by which water leaves the body. Describe the role of ADH and its effect on body water levels. Define dehydration and identify common causes of dehydration.
Figure 1. Water Content of the Body’s Organs and Tissues. Water content varies in different body organs and tissues, from as little as 8 percent in the teeth to as much as 85 percent in the brain. Fluid Compartments
A human cell typically consists of flexible membranes that enclose cytoplasm, a water-based cellular fluid, with a variety of tiny functioning units called organelles. In humans, as in all organisms, cells perform all functions of life.
I. Define the terms: organ, organ system and organism. II. Name the eleven organ systems of the human body, identify the major organs, and give a major function of each system. III. Define and demonstrate the anatomical position. IV. Locate the anterior (ventral) and posterior (dorsal) surfaces for the body, hands, and feet.