When a Baby Is Born,what Change(s)do NOT Need to Occur

question 36

Multiple Choice

When a baby is born,what change(s) do NOT need to occur in fetal circulation for it to survive?

• A)The oval opening (foramen ovale)must close.
• B)The arterial duct must close.
• C)The umbilical arteries and veins close.
• D)Blood must be able to pass from the right side to the left side.
• E)Fetal blood must be shunted toward the lungs after tying off the umbilical cord.

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Definitions:

Triple Bond

A chemical bond in which three pairs of electrons are shared between two atoms, making it stronger and shorter than single and double bonds.

Molecular Formula

A notation that shows the type and number of atoms in a molecule but not their structural arrangement.

1-Hexyne

A colorless, flammable liquid hydrocarbon with a triple bond in its structure, part of the alkyne group, used in organic synthesis.

Condensed Structural Formula

A method of describing the elements or molecules that comprise a compound and the way in which they are bonded to each other, using lines for bonds and showing minimal detail.