MMRV (measles, mumps, rubella, and varicella) vaccine - what you need to know
All content below is taken in its entirety from the CDC MMRV (Measles, Mumps, Rubella and Varicella) Vaccine Information Statement (VIS): www. cdc. gov/vaccines/hcp/current-vis/mmrv. html
The organs of the central nervous system (brain and spinal cord) are covered by connective tissue layers collectively called the meninges. Consisting of the pia mater (closest to the CNS structures), the arachnoid and the dura mater (farthest from the CNS), the meninges also support blood vessels and contain cerebrospinal fluid. These are the structures involved in meningitis, an inflammation of the meninges, which, if severe, may become encephalitis, an inflammation of the brain.
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Brain structures
The structures of the brain include: the brainstem, consisting of the spinal cord, the medulla oblongata, the pons and the midbrain; the cerebellum; the cerebrum (one half, or hemisphere shown), and the diencephalon.
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Gray and white matter of the brain
The tissue called "gray matter" in the brain and spinal cord is also known as substantia grisea, and is made up of cell bodies. "White matter", or substantia alba, is composed of nerve fibers.
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Central nervous system
The central nervous system is made up of the brain and spinal cord. The brain functions to receive nerve impulses from the spinal cord and cranial nerves. The spinal cord contains the nerves that carry messages between the brain and the body. Spinal cord injury can occur when there is damage to the cells within the spinal cord or when the tracts of nerves that run up and down the spinal cord are severed.
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Rabies
The central nervous system is made up of the brain and spinal cord. The brain functions to receive nerve impulses from the spinal cord and cranial nerves. The spinal cord contains the nerves that carry messages between the brain and the body. The rabies virus spreads through the nerves, first causing flu-like symptoms such as fever and malaise. As the disease advances to the brain, it causes anxiety, confusion, brain dysfunction, progressing to hallucinations, delirium, and insomnia. If left untreated, rabies is nearly always fatal.
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Nervous system
Peripheral Neuropathy is not a distinct disease, but the manifestation of many conditions that damage the peripheral nerves (nervous tissue other than the brain and spinal cord). Symptoms depend on whether sensory nerves (the nerves that transmit sensory information from the body to the brain and spinal cord) or motor nerves (the nerves that transmit impulses from the brain and spinal cord to the body) are affected. If the sensory nerves are damaged, sensation may be diminished, lacking or abnormal. Damaged motor nerves impair movement or function. Peripheral neuropathy may be caused by direct or indirect injury, or by a systemic cause such as a metabolic disorder.
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Central nervous system
The central nervous system is made up of the brain and spinal cord. The brain functions to receive nerve impulses from the spinal cord and cranial nerves. The spinal cord contains the nerves that carry messages between the brain and the body.
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CSF smear
Cerebral spinal fluid (CSF) is a clear fluid that circulates in the space surrounding the spinal cord and brain. CSF protects the brain and spinal cord from injury by acting like a liquid cushion. CSF is usually obtained through a lumbar puncture (spinal tap). During the procedure, a needle is inserted usually between the 3rd and 4th lumbar vertebrae and the CSF fluid is collected for testing.
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Lumbar puncture
Cerebral spinal fluid (CSF) is a clear fluid that circulates in the space surrounding the spinal cord and brain. CSF protects the brain and spinal cord from injury by acting like a liquid cushion. CSF is usually obtained through a lumbar puncture (spinal tap). During the procedure, a needle is inserted usually between the 3rd and 4th lumbar vertebrae and the CSF fluid is collected for testing.
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CSF chemistry
Cerebrospinal fluid (CSF) is a clear fluid that circulates in the space surrounding the spinal cord and brain. CSF protects the brain and spinal cord from injury by acting like a liquid cushion. CSF is usually obtained through a lumbar puncture (spinal tap). During the procedure, a needle is inserted usually between the third and fourth lumbar vertebrae and the CSF fluid is collected for testing.
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Ventriculoperitoneal shunt - series
Ventriculoperitoneal shunt - series
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Pregnancy care - Animation
It's always important to take good care of your health, but never more so than when you're pregnant. You're not only caring for your own body, you're also nurturing and growing a new human being. Let's talk about pregnancy care. During the nine or so months of your pregnancy, you'll see a lot of your ob/gyn. In fact, you should visit your doctor once a month during the first seven months of your pregnancy. Then you should see your doctor once every 2 or 3 weeks until your ninth month, and finally every week until you deliver. You might also see your regular doctor, a nurse midwife, or, if you have any complications, a perinatologist who specializes in high-risk pregnancies. That might sound like a lot of visits, but the goal is to keep a close eye on both you and your growing baby. Your doctor will check your baby's heart rate, and measure how quickly you're gaining weight. You'll likely have at least one ultrasound, where you can actually get to see your baby and find out the gender, unless you want it to be a surprise. Throughout your pregnancy, your doctor will monitor you for any health problems, such as high blood pressure or diabetes. At your regular prenatal visits, your doctor can give you advice about what to eat and how much to exercise. You can also ask about all those weird symptoms you've been having, like morning sickness, food cravings, and the constant urge to use the bathroom. There are a few things you need to do while you're pregnant to make sure you and your baby are healthy. First, you have to take 400 micrograms of folic acid every day. Folic acid is especially important right before you get pregnant, and during the first trimester of your pregnancy because it helps your baby's brain and spinal cord form. Taking folic acid can help prevent birth defects like spina bifida. One thing you need to avoid is alcohol. When you're craving a glass of wine or beer, have some sparkling water, grape juice, or ginger ale instead. Alcohol can be very dangerous for your baby. Also don't take any medicines without talking to your doctor first. That includes over-the-counter medicines like aspirin and cold relievers. Caffeine is okay, but only in moderation. Limit yourself to one cup of coffee, instead of your regular two or three. Don't smoke and stay away from anyone who is smoking. Cigarette smoke deprives your baby of oxygen. It can stunt your child's growth, and lead to birth defects such as a cleft lip or palate. If you're pregnant and you haven't seen a doctor yet, now is the time to call. The sooner you get prenatal care, the more likely that your baby will be born healthy. Let your doctor know if you have a condition like diabetes, seizures, or high blood pressure, or if you've been exposed to a sexually transmitted infection, chemicals, or radiation. Get medical help right away during your pregnancy if you have a fever, painful urination, vaginal bleeding, or severe stomach pain. Call if your water breaks, or you're not feeling your baby moving and it's near the end of your pregnancy.
NICU consultants and support staff - Animation
If your newborn needs to be admitted to the neonatal intensive care unit, or NICU, a group of different medical professionals will be there to help. Here's a rundown of some of the consultants and support staff you can expect to meet in the NICU. Each person who works in the NICU has a different specialty: Your bedside NICU nurses work most closely with your baby, providing care and observing closely for important changes. A neonatologist specializes in the health problems of newborns. They supervise and coordinate care. A cardiologist is trained to diagnose and treat diseases of the heart and blood vessels. If a baby has a heart defect, a cardiovascular surgeon will perform the surgery to fix it. An infectious disease specialist treats babies who have serious infections, including infections of the blood, brain, or spinal cord. A neurologist diagnoses and treats conditions of the brain, nerves, and muscles. You might see a neurologist if your baby has seizures, or is born with a nervous system condition like spina bifida. When the problem needs to be corrected with surgery, a neurosurgeon will perform the operation. An endocrinologist diagnoses and treats hormone problems, such as diabetes. Gastroenterologists are expert at treating digestive problems of the stomach and intestines. A hematologist-oncologist treats blood disorders and cancer. An infant might see this type of doctor for a problem with blood clotting. A nephrologist focuses on diseases of the kidneys and urinary system. If your baby was born with a kidney problem, you will talk to this doctor about treatments, and possibly the need for surgery. Pulmonologists treat newborn lung problems, such as respiratory distress syndrome. You might see this doctor if your baby was born with a breathing condition. Then you'll work with a respiratory therapist to treat the problem. If you had a very high-risk pregnancy, you'll work with a maternal-fetal medicine specialist. This doctor can help if your baby was born prematurely, or you had twins or other multiples. Babies who are born with eye defects see an ophthalmologist, a doctor who diagnoses and treats eye problems. If your newborn needs x-rays, an x-ray technician will take the test, and a radiologist will read the results. Sometimes babies are born with or at risk for developmental delays. If that is the case, a developmental pediatrician will test your child, and help you find the right care once you leave the NICU. The pediatrician may recommend that you see an occupational or physical therapist to assess your baby's reflexes, movement, and feeding. While you're in the NICU, you'll also see a neonatal nurse practitioner. This specialist will work closely with your doctor to make sure your baby gets just the right care. Being in the NICU can feel scary and new at first. Don't be afraid to ask questions. Your NICU medical team is there to care for your baby, and to make sure you're prepared to take over that care once you get home.
Brain components - Animation
The brain is composed of more than a thousand billion neurons. Specific groups of them, working in concert, provide us with the capacity to reason, to experience feelings, and to understand the world. They also give us the capacity to remember numerous pieces of information. There are three major components of the brain. The cerebrum is the largest component, extending across the top of the head down to ear level. The cerebellum is smaller than the cerebrum and located underneath it, behind the ears toward the back of the head. The brain stem is the smallest and is located under the cerebellum, extending downward and back toward the neck. The cerebral cortex is the outside portion of the cerebrum, also called the “gray matter”. It generates the most complex intellectual thoughts and controls body movement. The cerebrum is divided into left and right sides, which communicate with each other through a thin stalk of nerve fibers. The grooves and folds increase the cerebrum’s surface area, allowing us to have a tremendous amount of gray matter inside of the skull. The left side of the brain controls the muscles on the right side of the body and vice versa. Here, the left side of the brain is highlighted to show the control over right arm and leg movement, and the right side of the brain is highlighted to show the control over left arm and leg movement. Voluntary body movements are controlled by a region of the frontal lobe. The frontal lobe is also where we shape emotional reactions and expressionsThere are two parietal lobes, one on each side of the brain. The parietal lobes are located behind the frontal lobe towards the back of the head and above the ears. The taste center is located in the parietal lobes. All sounds are processed in the temporal lobe. They are also important for learning, memory, and emotion. The occipital lobe is located at the back of the head behind the parietal and temporal lobes. The occipital lobe analyzes visual information from the retina and then processes that information. If the occipital lobe becomes damaged, a person could become blind, even if his or her eyes continue to function normally The cerebellum is located at the back of the head underneath the occipital and temporal lobes. The cerebellum creates automatic programs so we can make complex movements without thinking. The brain stem is located underneath the temporal lobes and extended down to the spinal cord. It is critical for survival because it connects the brain with the spinal cord. The top portion of the brainstem is called the midbrain. The midbrain is a small portion of the brain stem located at the top of the brain stem. Just below the midbrain is the pons, and below the pons is the medulla. The medulla is the part of the brain stem closest to the spinal cord. The medulla, with its critical functions, lies deep within the head, where it is well-protected from injuries by an extra-thick section of overlying skull. When we are asleep or unconscious, our heart rate, breathing and blood pressure continue to function because they’re regulated by the medulla. And that concludes a general overview of the components of the brain.
Review Date:
7/8/2023+
Reviewed By:
Linda J. Vorvick, MD, Clinical Professor, Department of Family Medicine, UW Medicine, School of Medicine, University of Washington, Seattle, WA. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team. Editorial update 04/28/2025.
