These are the practice questions that we have created for this chapter. The form will grade itself, and show you any mistakes. These are different practice questions than you see in SI Review and in class!

We know about atoms and molecules and cells, so now we are ready to learn about complex multicellular life. Of course the multicellular species that is of the most interest to us is Homo sapiens, because that's us! The human body is incredibly complex, comprised of different kinds of tissues arranged to form a wide variety of organs and systems. What are these structures, what are they made of precisely, and how do they work? Learn all about this in my anatomy and physiology course!

In this episode of Crash Course, Hank introduces you to the complex history and terminology of Anatomy & Physiology.

Life is difficult to define, but there are characteristics of life that can be explored! Join the Amoeba Sisters as they explore several characteristics of life. Click "show more" to expand video details to see table of contents & additional information.

Paul Andersen introduces Anatomy and Physiology in this podcast. He starts by describing how the form of an object fits the function. He then explains the themes of homeostasis and hierarchy. He describes the four major types of tissues; epithelial, muscle, nervous and connective. He finally surveys all of the major organ systems in the human body.

Explore homeostasis with the Amoeba Sisters and learn how homeostasis relates to feedback in the human body. This video gives examples of negative feedback (temperature and blood glucose regulation) and positive feedback (events in childbirth).

Paul Andersen explains how feedback loops allow living organisms to maintain homeostasis. He uses thermoregulation in mammals to explain how a negative feedback loop functions. He uses fruit ripening to explain how a positive feedback loop functions. He also explains what can happen when a feedback look is altered. Diabetes mellitus is caused by an alteration in the blood glucose feedback loop.

Paul Andersen describes four important homeostatic loops in biology. He begins with a brief description of the elements of a homeostatic loop. He then describes how the hypothalamus helps us maintain a stable internal body temperature. He explains the role of the pancreas (insulin and glucagon) in regulating blood glucose. He explains how the thyroid and parathyroid glands (along with calcitonin and PTH) regulation blood calcium. He also explains how the pituitary gland (and ADH) help regulate the osmolarity of the blood.