We must carefully and accurately dissect the pig so we can identify all important parts. We must use caution when carrying and cleaning sharp dissection tools.
Forceps and probe Observations Using a ruler, measure the length of the pig from the snout to the tail. Use graph to estimate the age of the fetal pig.
Liquid gushes out Analysis What is the function of the umbilical cord?
The flexible cordlike structure connecting a fetus at the abdomen with the placenta and containing two umbilical arteries and one vein that transport nourishment to the fetus and remove its wastes.
B State the function of the following organs: Mixing and partial digestion of the food produces a pulpy fluid mix -chyme that passes into the intestine for further digestion and absorption.
Liver — The liver regulates most chemical levels in the blood and excretes a product called bile, which helps to break down fats, preparing them for further digestion and absorption.
All of the blood leaving the stomach and intestines passes through the liver. The liver processes this blood and breaks down the nutrients and drugs in the blood into forms that are easier to use for the rest of the body.
More than vital functions have been identified with the liver. Small intestine — digestion of food and absorption of the products of digestion.
Enzymes located in the glycocalyx of the microvillus of the entrecotes complete the breakdown of most sugars and proteins. Absorption of the monosaccharide and amino acids as well as water and electrolytes from the hyme.
Gall bladder — is to store bile and concentrate. Bile is a digestive liquid continually secreted by the liver. The bile emulsifies fats and neutralizes acids in partly digested food.
Pancreas — The pancreas is a small organ located near the lower part of the stomach and the beginning of the small intestine.
This organ has two main functions. It functions as an exocrine organ by producing digestive enzymes, and as an endocrine organ by producing hormones, with insulin being the most important hormone produced by the pancreas Large intestine — reabsorption of electrolytes and water and elimination of undigested food and waste.
Absorption of electrolytes and water. Barrier — separates the lumen of the digestive tract, which is continuous with the environment, from the body of the organism, immunologic barrier.
Secretion large amounts of mucus. Spleen — The spleen is formed by reticular and lymphatic tissue and is the largest lymph organ. The spleen lies in the left hypochondriac region of the abdominal cavity between the fundus of the stomach and the diaphragm.
It is purplish in colour and varies in size in different individuals, but it is usually about mm C What is the function of the mesentery? The primary mesenteries are dorsal and ventral, although the dorsal mesentery is often interrupted and moved to one side or the other with the organs and the ventral mesentery is reduced to the membranes of the liver and bladder.
Mesenteries running from organ to organ are usually called ligaments. D Why does the left ventricle contain more muscle than the right ventricle?
The left ventricle is much more muscular than the right as it has to pump blood around the entire body, which involves exerting a considerable force to overcome the vascular pressure.
As the right ventricle needs to pump blood only to the lungs, it requires less muscle. E Why do the lungs feel spongy? When we breathe in, air is drawn through the nose or mouth, into the throat, and down the windpipe trachea into the chest.
The windpipe branches into two tubes called bronchi, one going to each lung. Inside the lungs, the bronchi branch out many times, like a tree, to form smaller bronchi and then thousands of tiny tubes.
These tiny tubes are called bronchioles and end up at tiny, bubble-like air sacs. These air sacs make the lungs spongy. F What function do the cartilaginous rings of the trachea serve?
Cartilaginous rings conveys inhaled air from the larynx to the bronchi G Make labelled diagrams of the following: More essays like this:Shingrix, the vaccine approved last year to prevent shingles, has proved so popular that its maker, GlaxoSmithKline, has not been able to produce it quickly enough.
Fetal Pig Dissection Lab Answers Introduction Pigs, one of the most similar animals to humans, have been used to inform and teach students about the circulatory, respiratory, and digestive system through a procedure called a dissection for many years. Gmail is email that's intuitive, efficient, and useful.
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