Fetal Pig

The cranial cavity consits of the nervous system in general. It is located on the dorsal/anterior of the fetal pig. It pertains to the anterior section of the human body. The major organs in the cranial cavity are the brain and the spinal cord. Both of theses are parts of the nervous system. The function of that system is to take physical stimuli from environments and process them and respond to what is happening. Both the brain and spinal cord receive information from sensory nerves. Three major parts of the brain are the Cerebrum, the cerebellum and the medulla oblongata.

The cerebrum is the largest of the three, it has right and left hemispheres. It is used for the interpretation of impulses and coordination of voluntary movements. It is divided into frontal, temporal and parietal regions. Mostly used for learning and memory.

The cerebellum’s main function is to control the reflexes for skeletal muscle movements. It also helps with your balance.

The circulatory system consists of the spleen. The spleen stores, releases and recycles blood cells. The umbilical cord transports nutrients and oxygen and eliminates waste. The umbilical arteries carry blood from the fetus to the placenta. The umbilical veins transports most oxygen enriched blood into the fetus.

The pelvic cavity holds in it the reproductive system and the excretory system.

The Cardiovascular system’s main organ is the heart. The heart is made up of many tings. The ventricles pump blood out of the heart to the lungs and body. It is larger than the atrium. The atriums (cranial to the ventricles) differ in color and texture, they receive blood form the body and lungs and pass it to the ventricles. The coronary arteries supply the hear with blood and the vena cave brings deoxygenated blood to the right atrium. The pulmonary artery is located ventral to the pig. Blood leaves it from the right ventricle and channels the blood from there to the lungs. The brachiocephalic trunk carries blood to the right forelimb, upper body, brain and head.

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