Trimesters of Pregnancy Flashcards
In the first trimester of pregnancy, what begins to develop?
All tissues, organs, and organ systems begin to develop.
During the first trimester, the embryo is vulnerable to the effects of _____?
Alcohol, tobacco, drugs, environmental influences and environmental pollution.
How long does it take for an embryo to become a fetus?
At the end of 8 weeks, the embryo is called a fetus. All the organ systems begin to form.
Why is the 2nd trimester significant?
The fetal (fetus) heartbeat can be heard using a stethoscope.
During the third trimester, the fetus grows at a rapid rate. What ability does the fetus acquire?
The fetus now might respond to sounds in the environment.
What is the procedure called ultrasound?
A procedure where sound waves are bounced off the fetus.
What is the purpose of ultrasound?
To determine if the fetus is growing properly, the position of the fetus in the uterus, and the gender of the fetus.
What is amniocentesis?
Where a needle is inserted through the abdomen of the pregnant female.
What is removed and analyzed during an amniocentesis?
The amniotic sac is removed and analyzed.
What is a karyotype?
A chart of chromosome pairs.
How many X chromosomes do males and females have?
Females have two X chromosomes while males have one X chromosome and one Y chromosome.
What is a catheter?
A small tube that is inserted through the vagina and cervix.
What is specialization?
The adaptation of an organ or part to serve a special function or to suit a particular way of life.
What is in vitro fertilization?
Helps with fertility or prevents genetic problems and assists with the conception of a child.
