DNA (deoxyribonucleic acid) The molecule that carries genetic information in all living systems (see genetic code). The DNA molecule is formed in the shape of a double helix from a great number of smaller molecules (see nucleotides). The workings of the DNA molecule provide the most fundamental explanation of the laws of genetics.
Getting an epidural. Watch one mom in labor get an epidural for pain relief. The medication is usually a combination of a local anesthetic and a narcotic. Local anesthetics block sensations of pain, touch, movement, and temperature, and narcotics blunt pain without affecting your ability to move your legs.
What is an epidural blood patch? An epidural blood patch is an injection of your blood into the epidural space. The epidural space is not an injection into the spinal cord itself. The spinal cord and spinal nerves are in a âsackâ containing clear fluid (cerebrospinal fluid). The area outside this âsackâ is called the epidural space.