Biology Forums - Study Force

Identify the accurate statement regarding prenatal development and birth
 
  The development of the central nervous system is completed during the
  embryonic period.
  In the last months of prenatal life, the lungs begin to expand and contract and
  the valves of the heart undergo final maturation.
  A baby cannot be both preterm and small-for-date.
  A 36-week fetus will not yet have developed sufficient lung function to survive
  on its own.

Question 2

Which of the following is the most reliable indicator of viability in a premature infant?
 
  cardiovascular function
  weight
  brain maturity and function
  lung development

Question 3

Once a fetus has developed to a point that it can survive outside the uterus, it has reached the age of
 
  survival.
  viability.
  neurogenesis.
  longevity.

Question 4

With excellent medical care, a fetus can survive if it is born as early as
 
  16 weeks after conception.
  22 weeks after conception.
  27 weeks after conception.
  30 weeks after conception.

Question 5

The critical factor in attaining the age of viability is
 
  weighing at least 5 pounds (2.3 kg).
  having adequate brain development.
  having functioning digestive and respiratory systems.
  surviving at least 28 weeks past conception.

Question 6

The age of viability refers to the point when the preterm newborn:
 
  can survive outside the uterus.
  begins to move.
  will be born with any defects.
  has developed all its major organs.

Answer to q. 1

In the last months of prenatal life, the lungs begin to expand and contract and
the valves of the heart undergo final maturation.

Answer to q. 2

brain maturity and function

Answer to q. 3

viability.

Answer to q. 4

22 weeks after conception.

Answer to q. 5

having adequate brain development.

Answer to q. 6

can survive outside the uterus.