Fetal Pig Anatomy: Urinary Bladder Blood Vessels

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In summary, the blood vessels that run on either side of the urinary bladder in the fetal pig are the umbilical arteries. This can be determined by tracing the path back to the heart, where the major vessel that the umbilical arteries branch off of enters the ventricles, indicating that the blood flow is away from the heart.
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pharaoh
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What blood vessels run on either side of the urinary bladder in the fetal pig?

is it umbilical vein or umbilical artery?
 
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Umbilical arteries. Now, what you need to think through is how you'd have figured that out based on the anatomy if nobody told you the answer. What other vessel do the umbilical arteries branch off of? And what MAJOR vessel is that a branch from? And where does that major vessel enter/exit the heart? Whether a major vessel enters or exits the heart will tell you the direction of blood flow. Remember, Arterial blood flows Away from the heart and venous blood returns to the heart. When in doubt, trace the path back to the heart and see if it enters the atria or exits the ventricles.
 
  • #3


Both the umbilical vein and umbilical artery run on either side of the urinary bladder in the fetal pig. The umbilical vein carries oxygenated blood from the placenta to the fetus, while the umbilical artery carries deoxygenated blood from the fetus to the placenta. These blood vessels are essential for the exchange of nutrients and waste products between the mother and the developing fetus. Additionally, the umbilical vein and artery are connected to the hepatic portal vein and the inferior vena cava, respectively, which play important roles in the fetal circulation. Further study of the anatomy and function of these blood vessels in the fetal pig can provide valuable insights into the development and functioning of the urinary system in mammals.
 

1. What is the function of the urinary bladder in a fetal pig?

The urinary bladder is responsible for storing urine produced by the kidneys before it is eliminated from the body. In fetal pigs, the urinary bladder is not functional as it is not yet able to regulate waste products.

2. How is the urinary bladder connected to the rest of the urinary system?

The urinary bladder is connected to the ureters, which are tubes that carry urine from the kidneys, and the urethra, which is responsible for eliminating urine from the body.

3. What blood vessels supply the urinary bladder in a fetal pig?

The urinary bladder is supplied by the internal iliac arteries, which branch off from the abdominal aorta. These arteries bring oxygenated blood to the bladder for its nourishment.

4. Are there any major differences in the urinary bladder anatomy between fetal pigs and adult pigs?

Yes, there are some differences in the size and positioning of the urinary bladder between fetal pigs and adult pigs. In fetal pigs, the bladder is smaller and located more towards the front of the body, whereas in adult pigs it is larger and located more towards the back of the body.

5. How does the urinary bladder develop in a fetal pig?

The urinary bladder develops from the cloaca, a common opening for the digestive, urinary, and reproductive systems in fetal pigs. It begins to form around day 25 of gestation and continues to develop throughout the fetal stage.

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