Module 3: Section 28.04
Match the structure with its function: Ductus venosus.
Allows blood to bypass the liver
Which of the following is not from the same germ line as the others?
Brain
Match the structure with its function: Umbilical cord.
Carries blood to and from the placenta
Match the structure with its function: Foramen ovale.
Connects blood flow of right atrium to left atrium
Match the structure with its function: Fossa ovalis.
Depression on the wall of the atrial septum
Identify the structure associated with fetal circulation indicated by "A."
Ductus arteriosus
Identify the structure associated with fetal circulation indicated by "C."
Ductus venosus
Match the organ with the correct germ layer from which it forms: Brain.
Ectoderm
Match the organ with the correct germ layer from which it forms: Liver.
Endoderm
Identify the anatomical structure at "A."
Establishes the longitudinal axis
Identify the anatomical structure at "B."
Fashions structures of the nervous system and the skin epidermis
Match the developmental event: Eighth to the ninth month.
Fat laid down in subcutaneous tissue.
Match the developmental event: End of 8 weeks.
Fingers and toes formed
Identify the structure associated with fetal circulation indicated by "B."
Foramen ovale
Which structure represents the interatrial shunt?
Foramen ovale
Match the structure with its function: Ligamentum venosum.
Formed when the ductus venosus collapses
Identify the anatomical structure at "D."
Forms the epithelial linings of the digestive, respiratory, and urogenital systems, and associated glands
Identify the anatomical structure at "C."
Forms virtually everything else besides the nervous system, skin, digestive, respiratory, and urogenital systems, and associated glands
Match the embryonic term with its correct characteristic: Gastrula.
Has three primary germ layers and embryonic membranes
All except which of the following statements about the foramen ovale are true?
It allows blood to pass directly from the right atrium into the left ventricle.
Match the organ with the correct germ layer from which it forms: Bones.
Mesoderm
Match the developmental event: 13-16 weeks.
Most bones are distinct and joint cavities become apparent.
Match the developmental event: 17-20 weeks (fifth month).
Mother feels spontaneous muscular activity of the fetus.
Match the structure with its function: Umbilical vein(s).
One in number
Which of the following occurs 17-20 weeks into pregnancy, during the fetal period?
Quickening (fetal movement) occurs.
Match the developmental event: 9-12 weeks.
Sex is detectable by genitals.
Match the developmental event: Seventh month.
Testes reach scrotum in males.
Which of the following occurs eight weeks into pregnancy?
The head of the fetus is nearly as large as the body.
Match the structure with its function: Ligamentum arteriosum.
The remnant of the vessel that connected the pulmonary artery to the aorta and pulmonary trunk
Match the structure with its function: Umbilical artery(ies).
Two in number
Identify the structure associated with fetal circulation indicated by "E."
Umbilical arteries
Identify the structure associated with fetal circulation indicated by "D."
Umbilical vein
The heart begins to beat in the developing offspring __________.
at about 3 1/2 weeks
The function of the ductus arteriosus is to __________.
bypass the pulmonary circuit
The first major event of organogenesis is __________.
neurulation
