What does the thymus look like in a fetal pig?
What does the thymus look like in a fetal pig?
The thymus gland lies along both sides of the trachea from the larynx towards the heart. The thymus gland is the site of T lymphocyte (white blood cell) maturation, and thus plays an important role in immunity. The thymus consists of a right and left lobe which are joined by connective tissue.
Why is the thymus gland larger in fetal pigs?
In the young pig, the thymus is large because it is a critical in the development of the immune system. Later in life, the thymus decreases in size and becomes fairly unimportant.
What is the function of the thymus gland in a fetal pig?
Thymus gland: an endocrine (hormone-secreting) gland that helps regulate the immune system. It’s a large, spongy structure covering the ventral surface of the trachea and often extending into the thoracic cavity adjacent to the heart.
How does the thymus gland differ between pigs and humans?
Thymus – the thymus is found in the same areas in pigs as in humans. However, it is much larger than most students1 expect. This is not a difference of pigs from other mammals. All mammals have a large (enormous) thymus gland during the fetal stage.
Why does a vasectomy not affect urine flow fetal pig?
Answer: A vasectomy has no effect on libido, erections, or urination. The amount of semen a man ejaculates will not change after a vasectomy; the only difference is that there are no sperm in the ejaculate. The testicles will also continue to produce testosterone at the same rate.
What causes heart attacks in fetal pigs?
Notice that the surface of the heart is covered with blood vessels called coronary arteries. These are part of the coronary circulation, a set of arteries and veins whose only job is to nourish the heart tissue. Blockage in these vessels causes heart attacks.
What feature of the human cecum is lacking in a pig?
The caecum has no known function in the pig. It is a vestigial organ, like the appendix in humans.
What color is the thymus gland?
Structure. The thymus is an organ that sits beneath the sternum in the upper front part of the chest, stretching upwards towards the neck. In children, the thymus is pinkish-gray, soft, and lobulated on its surfaces. At birth it is about 4–6 cm long, 2.5–5 cm wide, and about 1 cm thick.
How do you tell a male pig from a female?
The anus on both male and female is located right under the base of the tale. On the female there is a vulva just below that, and she will urinate out the rear of her body. A male will not have that second opening, and he will urinate from under his body.