Chapter 2

Question 0

Embryonic Period

Answer 0

3rd-8th week: basic forms of all body structure.

Question 1

Germinal Period

Answer 1

1st two weeks after conception: rapid cell division and beginning of cell differentiation.

Question 2

Fetal Period

Answer 2

9th week until birth: fetus grows in size and matures in functioning.

Question 3

Placenta

Answer 3

Organ that surrounds the developing embryo and sustains life via the umbilical chord.

Germinal Period

Question 4

Implantation

Answer 4

Developing organism burrows into the placenta that lines the uterus (10 days after conception)

Germinal Period

Question 5

Primitive Streak

Answer 5

Becomes the neutral tube and later the brain and spinal column.

The Embryonic Period

Question 6

Prenatal Environment

Answer 6

Mother’s sounds diet and behavior become relevant for the fetus.

Question 7

Apgar Scale

Answer 7

Quick assessment of newborn’s heart rate breathing muscle tone color and reflexes.

Question 8

Teratogens

Answer 8

Substances and conditions that can impair prenatal development and result in birth defects or even death. Not all teratogens can be avoided. Structural abnormalities are obvious at birth.

Question 9

Behavioral Tertogens

Answer 9

Affect the child’s developing brain: developmental retardation, hyperactivity, learning disabilities. Don’t become evident for months or years.

Question 10

Cerebral Palsy

Answer 10

Damage to the brain’s motor centers: speech and/or muscles are impaired. Often a result of genetic vulnerability.

Question 11

Anoxia

Answer 11

Lack of oxygen: over time can lead to brain damage or death.

Question 12

Age of Viability

Answer 12

Age at which a preterm newborn may survive outside the womb with medical care

The Fetal Period