Neural-tube Sentence Examples
In the female the same growth of epithelial cords into the mesenchyme of the genital ridge takes place, but each one is Neural tube.
The primordium of the neurochord (neural or medullary plate) referred to above becomes closed in from the surface by the overgrowth of surrounding epiblast, and its edges also bend up, meet, and finally fuse to form a tube, the medullary or neural tube.
An important fact to note is that the blastopore is included in this overgrowth of epiblast, so that the neural tube remains for some time in open communication with the archenteron by means of a posterior neurenteric canal.
It is still longer before the neural tube completes its closure in front, exhibiting a small orifice at the surface, the anterior neuropore.
To do any less is to unnecessarily put the developing fetus at risk for neural tube birth defects.
However to prevent neural tube defects, supplemental folate must be taken early in gestation.
Neural tube defect, for example, is a birth defect in which the neural tube that forms the spinal cord does not close completely.
Pregnant women whose diets are deficient in folic acid have a greater chance of having a baby with neural tube defects (NTD), such as spina bifida.
The neural tube of the embryo develops into the brain, spinal cord, spinal column, and the skull.
Some of these children have other defects such as cardiac anomalies, chromosomal abnormalities, kidney and genital anomalies, and neural tube defects, such as spina bifida.Advertisement
Abnormally high AFP may indicate that the fetus has an increased risk of a neural tube defect, the most common and severe type of disorder associated with increased AFP.
For example, a deficiency in folic acid during the early stages of pregnancy may lead to neural tube defects such as spina bifida.
This so-called neural tube develops into the spinal cord, and at one end, the brain.
Many different types of brain defects are caused by improper closure of this neural tube.
Defects in skull closure are thought to cause some cases of encephalocele, while defects in neural tube closure may cause others.Advertisement
Failure of neural-tube closure below the level of the brain prevents full development of the surrounding vertebral bones and leads to spina bifida, or a divided spinal column.
Prenatal diagnosis of neural tube defects causing anencephaly or meningomyelocele is possible through ultrasound examination and maternal blood testing for alpha-fetoprotein, which is almost always elevated.
Folic acid is a vitamin that has been shown to reduce the incidence of neural tube defects.
The Centers for Disease Control and Prevention recommends that all women of childbearing age consume 0.4 mg of folic acid daily to prevent neural tube defects.
Alpha fetoprotein test-A screening blood test that can be done after the sixteenth week of pregnancy to evaluate the possibility of spina bifida and other neural tube defects in the fetus.Advertisement
Folic acid in early pregnancy helps prevent neural tube defects such as spina bifida.
This procedure enables an obstetrician to determine any chromosomal disorders or open neural tube defects, such as spina bifida, that the unborn fetus may have.
Folate intake during pregnancy also protects against neural tube birth defects, which can result in spina bifida and anencephaly.
One of folic acid's most important functions takes place during pregnancy as the fetus develops its neural tube.
The neural tube is where the development of the central nervous system occurs, and when it does not properly form and close, the baby may be born with neurological birth defects, known as neural tube defects.Advertisement