What is the pericardium in a fetal pig?
Pericardium, the covering of the heart, lining the pericardial cavity which is the sac containing the heart, bathing it in fluid and keeping it separate from the expanding lungs during breathing.
What is the function of the descending aorta in a fetal pig?
function: to carry oxygenated blood from the aorta to small arteries in the chest and abdomen. has two sections: the abdominal aorta and the thoracic aorta.
What is the function of the left atrium in a fetal pig?
The left atrium collects blood returning from both lungs. It is also thin walled and small when compared to a ventricle. After filling, the atrium contracts forcing blood through the open left AV valve and into the left ventricle.
What is the function of the glottis in a fetal pig?
Dorsal to this is an opening, the glottis, which leads into the larynx, part of the respiratory system. During swallowing the epiglottis forms a kind of lid over the glottis and deflects the food away from the glottis. When the epiglottis fails to do this, the food enters the glottis and choking results.
What is the function of the aorta in a pig?
The aorta carries oxygenated blood under high pressure as it leaves the left ventricle of the heart. Three main arteries leave the aortic arch to supply blood to the upper (more rostral) body, and blood flows caudally (orange arrow) in the aorta to supply the lower (more caudal) body.
What is the job of the aorta in a pig?
The largest most visible vessel is the aorta, it arches from the heart and branches toward the head and curves around to go to the lower part of the body – where it is called the abdominal aorta. The aorta supplies the body with fresh blood.
What is the function of a pig heart?
The heart is located in the thoracic cavity nestled between the lungs on the body’s midline. Pigs like other mammals have a four-chambered heart. The right side of the heart pumps blood to the lungs (pulmonary circulation), and the left side pumps blood out to the rest of the body (systemic circulation).
What is the function of a pig’s eye?
Purpose: The pig eye is similar to the human eye in terms of anatomy, vasculature, and photoreceptor distribution, and therefore provides an attractive animal model for research into retinal disease.
What is the function of the trachea in a pig?
It is a tubular organ formed by cartilage rings which is a part of the respiratory system, and goes from the larynx to the bronchi. Its function is to allow air exchange between the lung and the outside.
What are the functions of the pericardium in a pig?
Parietal Pericardium lines pericardial cavity Visceral Pleura covers surface of lungs Parietal Pleura lines pleural cavity Messentaries sheets of connective tissues, suspend organs, provide bridges for ducts, veins, holds together coils of small intestine Thymus Gland
Where are the lungs located in a fetal pig?
Obtain a fetal pig and identify the structures listed in the first photograph. The left lung contains three lobes and the right lung contains four. Each lung is located in a body cavity called a pleural cavity. Figure 16. Diaphragm. Figure 17. Diaphragm and lungs. Figure 18. Esophagus, larynx, trachea, bronchus, lung.
What do you need to know about fetal pigs?
You have already seen the pharynx, hard palate, soft palate, epiglottis, glottis, trachea, and larynx. Follow the trachea to where it branches into two bronchi and observe that each bronchus leads to a lung. The left lung contains three lobes and the right lung contains four.
How is the diaphragm used in a fetal pig?
The diaphragm isn’t used by the fetal pig because gas exchange occurs through the umbilical cord. The diaphragm in adult pigs moves up and down changing air pressure in the chest cavity causing air to move into and out of the lungs. The lungs haven’t been used by the fetus so they have never contained air.
Parietal Pericardium lines pericardial cavity Visceral Pleura covers surface of lungs Parietal Pleura lines pleural cavity Messentaries sheets of connective tissues, suspend organs, provide bridges for ducts, veins, holds together coils of small intestine Thymus Gland
Where does blood flow in a fetal pig?
Pulmonary arteries — The main pulmonary trunk divides into these vessels. In the adult, the pulmonary arteries carry deoxygenated blood to the lungs. 9. Ductus arteriosus — This short vessel in the fetal pig passes from the pulmonary artery to the aortic arch.
How to study the terms of fetal pig dissection?
Start studying Fetal Pig Dissection Terms & Functions. Learn vocabulary, terms, and more with flashcards, games, and other study tools. HomeBrowse Create Search Log inSign up Upgrade to remove ads Only $2.99/month Fetal Pig Dissection Terms & Functions STUDY Flashcards Learn Write Spell Test PLAY Match Gravity Created by sweetheart240624
The diaphragm isn’t used by the fetal pig because gas exchange occurs through the umbilical cord. The diaphragm in adult pigs moves up and down changing air pressure in the chest cavity causing air to move into and out of the lungs. The lungs haven’t been used by the fetus so they have never contained air.
Pericardium — This is a membrane similar to the pleura. This visceral pericardium is the thin, shiny membrane on the surface of the heart.
What is the function of the fallopian tubes in a fetal pig?
Tubes that carry the ovum from the ovary to the uterus; also called fallopian tubes or oviducts. two short branches located at the lower end of the trachea that carry air into the lungs.
What is the function of the pharynx in a fetal pig?
At the base of the tongue, the oral cavity ends and the pharynx begins. The pharynx is the common passageway for the digestive and respiratory tracts because both air and food must pass through this structure.
What is the function of the oviducts in a pig?
The oviduct is about 6-10 inches long and acts as the site of fertilization. There are two uterine horns. Each is 2-3 feet in length in the non-pregnant sow. They act as a passageway for sperm to reach the oviduct and are the site of fetal development.
Which muscles does the brain control?
The biggest part of the brain is the cerebrum. The cerebrum is the thinking part of the brain and it controls your voluntary muscles — the ones that move when you want them to.
How does the circulatory system work in a pig?
Pigs like other mammals have a four-chambered heart. The right side of the heart pumps blood to the lungs (pulmonary circulation), and the left side pumps blood out to the rest of the body (systemic circulation). After oxygenation, the blood travels back to heart via the pulmonary veins and enters the left atrium.
