20 Questions
What is the term used to describe the study of birth defects?
Teratology
What is a teratogen?
A substance that induces or amplifies abnormal embryonic or fetal development
Which of the following is an example of an infectious agent that can cause birth defects?
Cytomegalovirus
What is the effect of ionizing radiation on the conceptus?
It can produce any type of birth defect
What is an example of a maternal condition that can cause birth defects?
Hormonal imbalance
What is an example of a numerical chromosomal abnormality?
Trisomy 21
What is a result of a mutation?
A change in the function of a gene
What is an example of a genetic cause of birth defects?
Trisomy 21
What is the term used to describe the study of the causes of birth defects?
Teratology
What is an example of a physical teratogen?
Ionizing radiation
What is the primary cause of malformations?
Environmental and genetic factors
What is the typical time period during which most malformations occur?
During the 3rd/8th weeks of gestation
What is the result of an intrinsically abnormal developmental process?
Malformation
What is the term for a morphologic defect that results from exposure to teratogens?
Disruption
What is the cause of clubfeet (equinovarus)?
Compression in the amniotic cavity
What is the term for an abnormal form, shape, or position of a part of the body?
Deformation
What is the result of mechanical forces on the body?
Deformation
What is the term for a partial disruption of the abdominal wall in the area supplied by the right omphalo-mesenteric artery?
Gastroschisis
What is the result of fetal constraint associated with oligohydramnios?
Deformation
What is the term for the abnormal development of an organ or part of an organ?
Malformation
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
