Human Systems

This is a helpful website that gives a clearcut explanation of how vaccines produce immunity.

Provides virtual access to anatomy, microscope slides and dissection materials.

Alternate for earthworm dissection

Welcome to the companion Web site to "Life's Greatest Miracle," originally broadcast on November 20, 2001. A sequel to the most popular NOVA of all time, "Miracle of Life," the program once again uses the extraordinary microimagery of Swedish photographer Lennart Nilsson to track human development from embryo to newborn. Here's what you'll find online: Watch the Program If you missed the television broadcast of the Emmy award-winning program "Life's Greatest Miracle," you can watch it in its entirety here. Note: This program is rated TV-14,S. Viewer discretion is advised. (Available in QuickTime or RealVideo) Great Expectations: A Woman's Journal In this daily journal, follow along as a mother-to-be describes the joys and hopes, the trials and tribulations, of undergoing pregnancy and giving birth. Windows on the Womb Doctors today have myriad techniques for tracking the growth and health of a baby throughout pregnancy. Here, explore a bevy of currently available diagnostic and screening techniques, which are changing the nature of both pregnancy and parenthood. The Stem-Cell Debate In this essay drawn from his new book, Dartmouth ethicist Ronald Green, a one-time member of the National Institutes of Health's Human Embryo Research Panel, brings clarity, balance, and insight to the controversial issue of using human stem cells in biomedical research. How Cells Divide (Hot Science) Most of the time, when a cell in our bodies divides, each new cell carries a complete set of chromosomes. The cells involved with reproduction, however, carry only half after division occurs. In this step-by-step explanation, learn about mitosis and meiosis, the two types of cell division. How Is Sex Determined? (Hot Science) The sex of an egg cell is set as soon as it is fertilized, but what happens to that cell and the cells it divides into to make a baby boy or girl? Find out here.

Not sure if anyone already put it up.. but this is a site with info and a video on how the thyroid gland secretes thryoxine and its various reactions with other cells.

This quiz gives no background information, but may be useful for review.

This quiz tests you on the glands of the endocrine system and what they produce. It gives you options to choose from and corrects the quiz for you. (click score test, not correct it!)

Describes the importance of digestion and the process of digestion.

Explains what occurs in the digestive system, how it works and why it is important.

Short video with decent graphics that goes into the structure, location, and functions of the Endocrine system.

Great step-by-step review of the digestive track. Important terms and processes are highlighted and can be clicked for further explanation.

Some powerpoints that go over the endocrine system. They seem overly informative, yet still good to look over.

This gives a general description of the digestive system as well as the actual process.

This give a basic explanation of the endocrine system and the glands of the human body as well as a diagram. It is informative enough without giving an overwhelming amount of detail.

Very good website for a detailed overview of the digestive system. Very specific and has many good pictures.

(Note: the endocrine system starts at 1:08) This video does a good job of explaining the different parts of the endocrine system including hormones, the hypothalamus, the pineal gland, the thyroid gland, the parathyroid glands, the thymus gland, the pituitary gland, the adrenal glands, and the pancreas.

this video is goes into detail about how the endocrine system works, maintains homeostasis and other factors such as the different hormones and glands. * credits go until 15seconds

This video describes the pituitary gland, adrenal gland, various hormones, the hypothalamus, thyroid gland, and many others.

This video easily explains the function of the endocrine system. It tells you the six major types of glands that secrete hormones. Hormones are secreted into the capillaries that run through each major endocrine gland. It shows red blood cells moving through the capillaries. You can not see the hormones running through them though because they are in the solution in the blood plasma. Hormones can travel freely through the capillary walls and only influence specific target cells. Target cells have specific chemical receptors that can be on the surface or inside of the cell.

This web page has a diagram of the endocrine system as well as a chart showing each galnd and what hormones it secretes. Ends with some facts.

Shows the differences between the Endocrine and Nervous Systems, goes in depth about the glands, hormones, and and major organs.