Pre-Lab Questions:
The term "fetal" means/refers to the developing young in the uterus.
These fetal pigs are obtained by pigs that were killed in the meat packing industry.
These pigs have vessels that are double injected with red and blue latex to preserve their body.
Pigs are frequently used for educational dissections because they are very easy to dissect and label/recognize all their different body parts.
The Umbilical Arteries carry the pig's blood from its fetus to its placenta. It is at the pig's placenta where it exchanges waste in return for nutrients with the mother's blood. The Umbilical Vein transports the blood back from the placenta to the fetus.
Activity #1- External Anatomy
Our pig is a male because the urogenital papilla
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Two characteristics of our pig's auricles are that they are flat and external. Our pig's ear holes are narrow and the ear itself is pointy. We believe our pig has pointy or sharp ears is because it makes them alert and also makes it easier for them to hear a predator coming and also so they can hear a longer distance.
Activity #2- Respiratory System
The two cavities of the Respiratory System are the Nasal Cavity and the Oral Cavity. The Oral Cavity includes the external nostril, hard palate, soft palate, teeth, esophagus, epiglottis, tongue, mandible, and the glottis. The Nasal Cavity includes the nose, mouth, larynx, trachea, lungs, and the diaphragm.
The function of the Pharynx is to swallow food. The function of the Larynx is to allow the pig to make sounds and speak. The main function of the trachea is to provide a clear airway for air to enter and exit the out the lungs.
The function of the diaphragm is to allow and make it possible for the pig to breath.
Activity #3- The Circulatory
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Activity #4- The Digestive System
The front part of the roof of the mouth is called the hard palate and the the back part of the mouth is called the soft palate.
The mouth, throat (pharynx), esophagus, stomach, small intestine, and large intestine all make up the caudal digestive system.
The function of the liver in a fetal pig is to make bile to break down fats. It also filters poison and drugs out of the blood.
Activity #5- The Urogenital System
The Excretory System and the Reproductive System combine to make up the Urogenital System.
Kidneys, Ureters, Urinary Bladder, and Urethra are the four main organs that make up the Urinary System. The Kidneys filter blood and produce urine. The Ureters function is to transfer urine to the urinary bladder from the kidneys. The Urinary Bladder is responsible for gathering and hold urine until it has to be excreted out the body.The Urethra is responsible for transporting and excreting urine from the urinary bladder to the outside of the
Chapter 6: Mary Roach explains the use of cadavers for weapon experiments. Although it was sometimes ineffective for evidence evaluation scientist replaced them with animals such as pigs to receive better data. Changes like these were made to have more efficient experiments and have easier removal.
Located deeper into the throat of the sea lion are its larynx and trachea. The larynx of the sea lion serves four important functions. It facilitates swallowing, facilitates breathing, prevents food from ge...
Introduction: The purpose of this lab is to have a better understanding of the internal and external anatomy. The reasons for performing this lab is that pigs are similar to humans because they have skin, omnivores and as fetus they receive nutrients from an umbilical cord connected to the mother. As well as the similarities to human organ systems. The hypothesis of this lab is if the fetal pig has a similar organ system of a human and assuming those organs will be in the same locations as in a human then the organ systems should operate in the same fashion. Based on what I’ve learned from this lab and what I’ve learned during lecture I predict that the fetal pigs nervous and circulatory system would operate and look the same way as in a human.
The respiratory system has the function of getting rid of carbon dioxide and acquiring oxygen. It works closely with the circulatory system to feed the body the proper amounts of oxygen it needs to function efficiently. The respiratory system of an American Mink is very similar to that of a human in spite of the fact that there are some minor modifications. Both Humans and Minks have two lungs, the right lung is larger and has three lobes and the left lung has two lobes. The reason why the left lun...
In Labs 22 through 26, my lab partner and I were assigned a fetal pig to perform a dissection on in order to understand anatomy, the study of an organism’s structure1, and physiology, the study of the functions and activities of a living organism2. Throughout these labs, we studied the structure of the fetal pig and performed experiments to understand four system processes: digestion, cardiovascular, respiratory, and excretory. Dissecting an organism, physically moving and seeing the different portions of the organism, especially of a fetal pig, is very important. This helps in the understanding of the skeletal structure and what series of physical and chemical processes the mammalian species body performs in order to survive.
The larynx prevents food and liquids from traveling down the air path ways which could result in choking. From the larynx, Bronchi trachea splits into two bronchi each leading to a lung, each lung is divided into lobes. The right lung has three lobes and the left has two lobes. The right lung is slightly larger than the left lung. The two lungs are mainly made of up connective tissue, which gives them their soft and spongy texture. The bronchi branch are smaller and are called bronchioles which are divided many more times in the lungs. The lungs is made up of connective tissue, blood, lymphatic tissue, air pathways and alveoli are at the end of the branches inside of the lungs. The alveoli sends oxygen and removes carbon dioxide. This is a basic view of how the respiratory system functions and if the respiratory system doesn’t do its job then this could lead to infectious diseases of the respiratory
Mouth: The process of digestion starts in the mouth. Where the food is broken down into small pieces and these pieces can be easily absorbed.
Thus the reason fetal monitoring is important in the case of
The pharynx is a large cavity behind the mouth and between the nasal cavity and larynx. The pharynx serves, as an air and food passage but cannot be used for both purposes at the same time, otherwise choking would result. The air is also warmed and moistened further as it passes through the pharynx. The larynx is a short passage connecting the pharynx to the trachea and contains vocal chords. The larynx has a rigid wall and is composed mainly of muscle and cartilage, which help prevent collapse and obstruction of the airway.
I used to think wild pigs were just that, normal pigs that went out into the world alone, but I was wrong they are actually a lot different! Did you know the Binomial Nomenclature or scientific name of the wild pig is Sus Scrofa and that they are considered mammals and are thus part of the Mammalia family. They’re hair color differentiates between brownish-red to black, and they are 3.6-4.9 feet long. Though they aren’t as tall as a bear they are 3 feet in height at adulthood and can weigh as much as 400 pounds. They usually live 1-2 years but can live up to 9-10 years of age. They are also thinner than they’re domestic cousins and have much rougher hair that is known to sometimes stick up they’re spin in a threatening manner to make themselves look bigger. The long spear-like tusks protruding from they’re mouths are actually teeth that are on the top of their mouths, these tusks curve like a hook to protrude from the mouth at an actual angle. The females are almost always smaller than their male counterparts and as the males and females age this difference becomes more substantial and more visible. When they are born the pigs have a yellowish strip of color running down their sides that goes away after 4 weeks. Depending on their environment they also can have spots of different colors that allow the pigs to blend into their environments. Pigs teeth aren’t always pre...
All play a role in removing waste from your body. Your kidneys filter waste from your blood and regulate the concentrations of many substances. Tubes called ureters carry urine from your kidneys to the bladder, where it’s store until it exits your body through the urethra.
Kidney Function Introduction and definition of terms: The kidneys are the main organs in the urinary system. They filter waste products out of blood from the renal artery. These are then excreted. Useful solutes are reabsorbed into the blood. They also have a major homeostatic role in the body, and help to control the water content (osmoregulation) and pH of the blood.
There are three parts that make up the respiratory system; muscle, lungs and the airway (respiratory system 2017). Although, there are three main parts the main organ is the lungs. The respiratory system delivers air to the alveoli, while giving and removing Carbon dioxide. Asthma is one of the many respiratory diseases. From personal experience, Asthma can affect one’s life in many ways. Asthma is when your airway is inflamed and produces a lot of mucus which makes it hard for one to breathe. Many are affected by respiratory diseases, because it effects their everyday
The first step was to obtain the White Rat and to tie it in the supine position, anterior surface facing up in side the dissection pan. To tie the animal, we used butcher’s twine and secured the front and hinds legs using a “lasso” technique, careful not touch the sharp claws. To make the first insicion I had to locate the Xifoid Process of the rat (distal aspect of the sternum). Once I had located the Xifoid Process, I had to use forceps to pull the skin of the animal’s abdomen up and use the scissors to cut. The first incision is made from stem to sternum, cutting through the errectos abdomen muscle down to the groin. The second incision ion is perpendicular to the first below the diaphragm. Because of this technique we were able to open the abdominal cavity first. The third and forth incisions were made bilaterally above the legs. The last two incisions were made in upside down “V” shape on the collarbone, to expose the thoracic cavity. This dissection was both sharp, because of the use of the scissors and scapel and blunt because of the use of the probe and forceps to move organs and skin to expose other organs not yet identified.
There are two articulators that combine in the production of a consonant : an active organ (articulator) which is a movable one that moves towards the second organ (articulator) which is a passive one (or unmovable one) to form a blockage in the passage of the airstream and cause an audible friction. This blockage may be complete or partial (Omar, 1997:132-135). Since, there is a complete blockage at some points in the vocal tract i.e. , the oral cavity, nasal articulation requires a free passage of airstream which is the nose (i.e., the nasal cavity) (Robins, 2014: 84). Consonants are articulated either with a total obstruction of the air passage or with a narrow oral passage so that the air 43 escapes with friction. Consonants are classified depending on the state of the glottis (the vocal cords) during their articulation, the place of articulation and the manner in which a sound is articulated (Al-Hattimi, 2010: 272 and Todd, 1987:14).