Why is the fetal pig a good specimen to dissect?

Why is the fetal pig a good specimen to dissect?

A fetal pig dissection is helpful for anatomy studies because the size of the organs makes them easy to find and identify. It is also interesting to do because a lot of the internal anatomy is similar to humans!

What is the function of the anterior vena cava in a fetal pig?

It is a blood vessel that drains blood from important body organs and parts, such as the brain, face, and neck and return it to the superior vena cava.

What is the purpose of dissecting a fetal pig?

How are fetal pigs for dissection obtained?

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 is the function of the small intestine in a fetal pig?

The small intestine is a long coiled tube found directly below the stomach. Digestion of food is completed in the small intestine. As digested food passes through the small intestines, nutrients and water are absorbed by the villi projections.

What is the vena cava function?

A large vein that carries blood to the heart from other areas of the body. The vena cava has two parts: the superior vena cava and the inferior vena cava. The superior vena cava carries blood from the head, neck, arms, and chest.

What is the anterior vena cava?

The anterior vena cava, also known as the precava, drains the head end of the body, while the posterior vena cava, or postcava, drains the tail, or rear, end. In humans these veins are respectively called the superior and inferior venae cavae.

What is the purpose of dissecting?

1. It is dissection alone which allows us to recognize and relate body structure in three dimensions. Dissection is a complex procedure to learn morphology which requires all of the senses. T h e exercise of dissection provides the feel for the fabric of the body and it improves our manual dexterity.

What is the function of the lungs in a fetal pig?

The fetal pigs lungs are flatter than those of a human. Techniques are being mastered to transplant porcine(pig) lungs into humans. The lungs have the responsibilty of removing carbon dioxide and adding oxygen to blood that will then be distributed back to the body through the capillaries.

Where does the fetus develop in a pig?

Uterine Horns point where uterus & uterine tubes meet; connect body of uterus & ovaries; in the pig, fetus develops here Uterus V-shaped structure formed by the joining of the two uterine horns; in the human, where the fetus develops in a human, NOT in the pig

What kind of nervous system does a pig have?

Peripheral nervous system – Nerves leave the brain and the spinal cord and transmit the electrical impulses throughout the body. This system is the voluntary one that is under the pig’s control. Autonomic nervous system – This is the involuntary nervous system of the pig with separate nerves controlling a wide range of involuntary functions.

Where does progesterone come from in a pig?

Corpus luteum – The corpora haemorrhagica becomes consolidated and forms the corpus luteum. This is the body that produces progesterone, the female hormone that maintains pregnancy. Cryptorchid – A male pig whose testes have not descended through the inguinal canals.

What do you call inflammation of the cervix in a pig?

Cervix – The neck of the womb. Inflammation of the cervix is called cervicitis. Cervicitis is not common in the pig, but erosion of the thick folds occurs in old sows and can cause infertility. The calculation is based on a given period of time.