This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Which factors contribute to maintaining a patent ductus arteriosus during fetal life? 1. Large ... (Read 82 times)

drink

  • Hero Member
  • *****
  • Posts: 554
on: Jul 16, 2018
Which factors contribute to maintaining a patent ductus arteriosus during fetal life? 1. Large amounts of fetal hemoglobin 2. Low PaO2 3. Presence of LDH 4. Presence of prostaglandins
 
  a. 1, 2, and 3
  b. 2 and 4
  c. 3 only
  d. 1, 2, 3, and 4

Question 2

In the fetal heart, the foramen ovale allows blood to flow between which two structures?
 
  a. Bypass the liver and enter the inferior ve-na cava.
  b. Pulmonary artery to aortic arch.
  c. Right atrium to left atrium.
  d. Right atrium to left ventricle.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

samiel-sayed

  • Sr. Member
  • ****
  • Posts: 337
Reply #1 on: Jul 16, 2018
Answer to Question 1

ANS: B
The relatively low PO2 and various prostaglandins in fetal blood cause the ductus arteriosus, a muscular vessel attached to the trunk of the pulmonary artery and the aorta, to dilate and the pulmonary arteries to constrict.

Answer to Question 2

ANS: C
Approximately 50 of this blood is shunted from the right atrium into the left atrium through an opening in the interatrial septum called the foramen ovale.


drink

  • Member
  • Posts: 554
Reply 2 on: Jul 16, 2018
Wow, this really help

ktidd

  • Member
  • Posts: 319
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

Most strokes are caused when blood clots move to a blood vessel in the brain and block blood flow to that area. Thrombolytic therapy can be used to dissolve the clot quickly. If given within 3 hours of the first stroke symptoms, this therapy can help limit stroke damage and disability.

Did you know?

In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

Did you know?

A recent study has found that following a diet rich in berries may slow down the aging process of the brain. This diet apparently helps to keep dopamine levels much higher than are seen in normal individuals who do not eat berries as a regular part of their diet as they enter their later years.

Did you know?

Excessive alcohol use costs the country approximately $235 billion every year.

Did you know?

There are approximately 3 million unintended pregnancies in the United States each year.

Martin Van Buren, sitting uncomfortably for this engraving, would eventually ascend to the presidenc Martin Van Buren, sitting uncomfortably for this engraving, would eventually ascend to the presidenc
Patent medicines contained a name brand that clearly identified the product and claimed to cure just ... Patent medicines contained a name brand that clearly identified the product and claimed to cure just ...
Different hand positions and working surfaces for massage applications on large muscles. A. Flat ... Different hand positions and working surfaces for massage applications on large muscles. A. Flat ...
Venn diagram representation of 17,067 medium and large clusters of protein Venn diagram representation of 17,067 medium and large clusters of protein
Plant life cycle Plant life cycle
Major Events in the History of Life Major Events in the History of Life
Video: Introduction to Photolithography - WC, BLF, PA, Hard and Soft baking

For a complete list of videos, visit our video library