sex cells, egg or sperm

gas exchange

when oxygen moves from your lungs into your blood  and carbon dioxide moves out of your blood into your lungs

gastroesophageal reflux disease (GERD)

stomach acid or, occasionally, stomach content, flows back into your food pipe (esophagus)



a test in which a gastroscope (a long flexible tube) is passed through your mouth into your upper digestive tract. It allows your doctor to look at the lining of your esophagus, stomach and the first part of your small intestine

gavage feeding

feeding of your infant through a feeding tube


family traits, study of blood relatives

genital area

private parts, vagina, penis

genital herpes simplex

herpes (sores) in the genital area


the time when a baby is developing inside its mother before it is born

gestation means the period of time a baby is carried in the uterus. This is counted from the first day of your last menstrual period. Early-term gestation is between 37 to 39 weeks; full-term gestation is between 37 and 41 weeks; late-term gestation is between 41 and 42 weeks; and post-term gestation is 42 weeks or more

gestational Age

number of completed weeks of pregnancy between conception and birth

gestational diabetes

a type of diabetes that happens during pregnancy

a condition that develops during pregnancy when blood sugar levels become too high because the mother doesn't produce enough insulin. Gestational diabetes can be treated, and it usually disappears after pregnancy.




inflammation of your gums


eye disease, increased eye pressure

glomerulonephritis (nephritis)

when the glomeruli (tiny filters that clean your blood) are damaged.

glomerulus (glomeruli)

tiny filter in your kidneys that cleans out waste and extra water from your blood. More than one is called glomeruli


sugar in your blood


slowly, over time

graft (arterio-venous graft)

a vein and an artery in your arm are joined with a piece of special tubing, for dialysis



group B streptococcus

kind of bacteria that many people naturally have in their intestinal tract. It is usually harmless in adults. If you're a healthy adult, there's nothing you need to do about group B strep. If you're pregnant, get a group B strep screening test during your third trimester

kind of bacteria that can be found in the vagina that can be picked up by the baby as he or she passes through during childbirth, causing a very serious infection in the newborn . Testing for group B streptococcus is usually scheduled between weeks 35 and 37. The practitioner will use vaginal and rectal swabs, and if the result is positive, the treatment is to administer either IV antibiotics during labour or oral antibiotics during the last weeks of pregnancy.



audible sound made by an infant during exhalation that indicates breathing problem.


rules, steps to follow, directions

Guillain-Barre syndrome (GBS)

a disease that makes it hard to move

is a rapid-onset muscle weakness caused by the immune system damaging the peripheral nervous system