HAN 200 Midterm: HAN 200 Midterm #1

• School: Stony Brook University
• Department: Health Sciences
• Course: HAN 200
• Professor: Diraine Glanville

Document Summary

They are discrete structures with at least two tissue types (more commonly, four tissue types) that have specialized functions responsible for a necessary activity that no other organ can perform. Extremely complex functions become possible: organ systems consist of different organs that work together closely to accomplish a common purpose. There are 11 organ systems in the body: Human cells can survive only a few minutes without oxygen: water 50-60% of body weight. Determines the set point, the level at which a variable is to be maintained. Body is erect with feet slightly apart, toes forward. Arms rest at sides of trunk, palms facing forward, thumbs pointing away from body: orientation and directional terms, superior (cranial) towards the head end or upper part of body; above. Inferior (caudal) away from the head, towards lower part of body; below: anterior (ventral) towards front of body; in front of, ventral and anterior are synonymous in humans, but not in four- legged animals.