Table of Contents
- 1 Where does the umbilical vein lead to in a pig?
- 2 What is the function of the umbilical arteries in a fetal pig when it is in utero?
- 3 What organ does the umbilical vein lead to in the fetus?
- 4 Where does the umbilical vein drain?
- 5 Where do the fetal pigs come from for dissection?
- 6 Where do you cut the umbilical cord on a pig?
- 7 Are there any blood vessels in the umbilical cord?
Where does the umbilical vein lead to in a pig?
After completing the cuts, locate the umbilical vein that leads from the umbilical cord to the liver. You will need to cut this vein in order to open up the abdominal cavity. Your pig may be filled with water and preservative, drain over the sink if necessary and rinse organs.
How many umbilical arteries are there in a fetal pig?
two arteries
umbilical arteries: two arteries, carry deoxygenated blood from fetus to placenta. umbilical vein: a single large vein, carries oxygenated blood from placenta to fetus. allantoic duct: channels urine to the allantois, an extra-embyronic sac.
What is the function of the umbilical arteries in a fetal pig when it is in utero?
The umbilical arteries carry blood from the fetus to the placenta. The umbilical vein carries blood from the placenta back to the fetus.
Do fetal pigs have umbilical cords?
Fetal pigs receive their nourishment from their mother through the umbilical cord. 6. Identify the first part of the small intestine, the U-shaped duodenum, which connects to the lower end of the stomach.
What organ does the umbilical vein lead to in the fetus?
The fetus is connected by the umbilical cord to the placenta, the organ that develops and implants in the mother’s uterus during pregnancy. Through the blood vessels in the umbilical cord, the fetus receives all the necessary nutrition, oxygen, and life support from the mother through the placenta.
Where is the thymus located in a fetal pig?
The thymus gland lies along both sides of the trachea from the larynx towards the heart.
Where does the umbilical vein drain?
The umbilical vein is an important part of the fetal circulation. Unlike regular veins in adulthood, the fetal umbilical vein carries oxygenated blood from the placenta into the growing fetus….Umbilical vein.
| Drains from | Small venules of the placenta |
|---|---|
| Drainage area | Placenta |
Where is the stomach located in a fetal pig?
Stomach – the pig’s stomach is located on the right side, tucked under the liver. Spleen – the spleen is not part of the digestive system; it helps filter the pig’s blood. It is a thin finger-like organ lying on the stomach and matching it in color.
Where do the fetal pigs come from for dissection?
Fetal pigs are the unborn piglets of sows that were killed by the meat packing industry. These pigs are not bred and killed for this purpose, but are extracted from the deceased sow’s uterus. Fetal pigs not used in classroom dissections are often used in fertilizer or simply discarded.
What do the umbilical arteries do?
The umbilical arteries carry deoxygenated blood from fetal circulation to the placenta. The two umbilical arteries converge together about at 5 mm from the insertion of the cord, forming a type of vascular connection called the Hyrtl’s anastomosis.
Where do you cut the umbilical cord on a pig?
Insert one blade of scissors through the body wall on one side of the umbilical cord and cut posteriorly to the base of the leg as shown in the first photograph below. Continue cutting from the anterior end of this cut so that it resembles an upside-down U.
What was the histology of the umbilical cord of the pig?
Jordan HE. The histology of the umbilical cord of the pig, with special reference to the vasculogenic and hemopoietic activity of its extensively vascularized connective tissue. (1919) Amer. J Anat. 26 (1): 1-28. This 1919 paper by Jordan describes the histology of the umbilical cord of the pig.
Are there any blood vessels in the umbilical cord?
The connective tissue contains many arterioles, venules, and capillaries. Only one of the post-embryonic human umbilical cords in my collection, a full-term specimen, contains any blood-vessels besides the usual umbilical arteries and vein.
Where does the most oxygenated blood in the fetus go?
Therefore, the most highly oxygenated blood in the fetus is in the umbilical vein. Blood from the umbilical vein gets mixed with the rest of the systemic circulation and returns to the right atrium.