TABLES FOR EXAM

Question 1

Postnatal structure and function in fetus of foramen ovale

Answer 1

Fossa ovalis. Diverts blood from right atrium to left atrium

Question 2

Postnatal structure and function in fetus of ductus arteriosus

Answer 2

Ligamentum arteriosum. Divert blood from pulmonary trunk to aorta

Question 3

Postnatal structure and function in fetus of ductus venous

Answer 3

Ligamentum venosum. Carry blood from umbilical vein through the liver into IVC

Question 4

Postnatal structure and function in fetus of umbilical arteries

Answer 4

Median umbilical ligaments. Paired vessels carry blood from fetus to placenta

Question 5

Postnatal structure and function in fetus of umbilical vein.

Answer 5

Ligamentum teres. Single vessel carries oxygenated blood from placenta to fetus.

Question 6

Most important during 8 weeks

Answer 6

Head nearly as large as body. First brain waves in brain stem. Limbs present. Ossification begins. Spontaneous contractions occur. 30mm

Question 7

Most important 9-12 weeks

Answer 7

Head still dominant, body elongating. Retina present. Liver prominent. Bile secretion. Lungs begin to develop. Sex can be determined from the genitals. 90mm

Question 8

Most important in 17-20 weeks

Answer 8

Mother can feel fetal movements. Fetal position assumed. 190mm

Question 9

Most important 21-30 weeks

Answer 9

Myelination. Body is lean and well proportioned. Bone marrow becomes sole site of blood cell formation. Testes descend to scrotum in month 7. 280mm

Question 10

Most important 30-38 weeks

Answer 10

Fat accumulates in hypodermis. 360mm / 7lb.