VonneB7732 VonneB7732

21-01-2024
Biology

Answered

Oxygenated blood from the placenta returns to the fetus in the
A) allantois.
B) umbilical vein.
C) umbilical arteries.
D) decidua capsularis.
E) umbilical capillaries.

Answer :

Other Questions

Which of the following is not one of the extraembryonic membranes? A) yolk sac B) amnion C) allantois D) chorion E) umbilical cord

Which of the following is false concerning the allantois? A) It derives partly from endoderm. B) It projects into the umbilical cord. C) It stores nitrogenous w

The extraembryonic membrane that forms the fetal portion of the placenta is the A) yolk sac. B) amnion. C) allantois. D) chorion. E) decidua.

The inner cell mass of the blastocyst will A) form the placenta. B) form the morula. C) form the embryo. D) form blood vessels of the placenta. E) provide nutri

The mesoderm and the trophoblast combine to form the A) amnion. B) amniotic sac. C) chorion. D) allantois. E) inner cell mass.

The placenta is a source of which of the following hormones? A) hCG B) relaxin C) placental lactogen D) progesterone E) All of the answers are correct.

The stage of labor during which the fetus emerges from the vagina is called the ________ stage. A) emergence B) dilation C) placental D) expulsion E) fetal

A blastocyst is a(n) A) extraembryonic membrane. B) solid ball of cells. C) hollow ball of cells. D) portion of the placenta. E) origin of the urinary bladder.

During implantation, the A) trophoblast erodes a path through the endometrium. B) inner cell mass begins to form the placenta. C) maternal blood vessels in the

By the end of gestation, maternal blood volume normally increases by almost ________ percent. A) 20 B) 25 C) 50 D) 80 E) 100