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Anatomy of the Prostate Gland Facts about the prostate gland The prostate gland is about the size of a walnut. It's located just below the bladder, and it surrounds the urethra. This is a tube that carries urine and semen out of the body. The prostate is partly muscular and

Hormones During Pregnancy What is the role of hormones during pregnancy? Many hormone levels are affected in the body during pregnancy. Several hormones play major roles during pregnancy. These are: Human chorionic gonadotropin hormone (hCG). This hormone is made only during

Blood Donations and Blood Banking What is blood banking? A blood bank is a place where blood is collected and stored before it is used for transfusions. Blood banking takes place in the lab. This is to make sure that donated blood and blood products are safe before they are used

What Are Red Blood Cells? Red blood cells carry fresh oxygen all over the body. This is important to your health. Red blood cells are round with a flattish, indented center, like doughnuts without a hole. Your healthcare provider can check on the size, shape, and health of your

Safer Sex Guidelines What is safe sex? Having sex with only one partner who only has sex with you when neither of you has a sexually transmitted infection (STI) is believed to be safe. But many health care professionals believe that the only way to be truly safe is not to have

Pregnancy Click on the links below to learn more about this topic. Pregnancy Overview Anatomy: Fetus in Utero The First Trimester (0 - 12 Weeks) The Second Trimester (12 - 24 Weeks) The Third Trimester (24 - 40 Weeks) The Pregnant Mother Hormones During Pregnancy Weight Gain

Exercise: Before Starting an Exercise Program Talk with your provider It’s always important to talk with your healthcare provider before starting an exercise program. This is especially true if you currently have, or have had, any of the following: Diabetes Chest pain or pain in

Skin Tests What are skin tests? Skin tests may be done to diagnose rashes, moles, skin allergies, bacterial or fungal skin infections, and other diseases. Skin tests are also done to tell the difference between cancer (malignant) cells and noncancer (benign) growths. What are the

Genetic Disorders Associated with Congenital Heart Disease Click on the links below to learn more about these topics. Down Syndrome Marfan Syndrome 22q11.2 Deletion Syndrome© 2000-2025 The StayWell Company, LLC. All rights reserved. This information is not intended as a

Topic Index - Eye Care Eye Care Home Anatomy of the Eye Eye Care Specialists Eye Examinations Correcting or Improving Vision Eye Glasses and Contact Lenses Corrective Eye Surgeries for Refractive Errors Low Vision Devices Eye Disorders Overview of Eye Disorders Age-Related