Once you have removed the cornea, place it on the board (or cutting surface) and cut it with your scalpel or razor. Listen. Hear the crunch? That’s the sound of the scalpel crunching through layers of clear tissue. The cow’s cornea has many layers to make it thick and strong.
Purpose To dissect a fetal pig and examine the structures and arrangements of the digestive, respiratory and circulatory system. Discussion 1 a) dorsal and ventral dorsal is the backside and towards the back ventral is belly side or towards the belly b) proximal and distal proximal is away from extremities, towards the body distal is away fro the body toward extremities c) medial and lateral medial refers to the middle lateral refers to the side. d) posterior and anterior posterior refers to the tail end or towards the tail anterior refers to the head or head end. 2. i) the first incision will be from umbilical cord towards the head the second incision will be from the anterior side of the umbilical cord down each side of the umbilical cord towards tail end. the third incision is a cut from the base of the neck to the shoulders the fourth incision will be from the base of the abdomen towards the hind leg the fifth incision will be a bit before the umbilical cord across the abdomen.
Remove the skin of the lower wing in the same way that you removed the skin from the upper wing. Leave the skin on the wing tip. Using scissors, remove any tissues covering the muscle. Use a blunt probe to separate the individual muscles from each other without tearing them. Label the following structures of your specimen: Bicep muscle Tricep muscle Forearm muscle Tendon Part B: Straighten the chicken wing and hold it horizontally above the tray.
Examine the lungs, trachea, and bronchus 8. Make a midsagital cut down the trachea and separate the two lungs 9. Remove the heart 10. Remove the fat surrounding the lungs 11. Make a mid-coronal cut separating the anterior portion of the lung from
Grab the pin and place them one on each side, as much as you want to see the whole earthworm’s insides. This is the part where we start to investigate and start analyzing the earthworm from the inside. Make sure to take notes and observe the external and internal structures of earthworm anatomy. Start locating the digestive tract. Refer to the figure below; identify the pharynx, esophagus, crop, gizzard, and intestine.
The brain is smashed with a hook put up the nose and pulled out. The heart is left in because when you reach the underworld, a ceremony called the weighing of the heart is performed. The god Anubis weighs the heart, then, if your heart is pure, you will be able to enter the afterlife. But, if your heart is heavy, you would be eaten by Ammut. The stomach, lungs, liver, and intestines are packed in natron salt to dry them out.
Avary Johnson BILOL 104 Assignment 1 Chapter 28 Introducing Invertebrates Pg.547 #8 Describe the parasitic flatworms, and give the life cycle of both blood fluke that causes Schistosomiasis and the pork tapeworm. They are flukes and tapeworms of parasitic flatworms which are highly modified for the parasitic mode of life. The flukes and tapeworms both utilize a secondary or intermndiate host to transport species from primary host. The primary host is infected with the sexually mature adull ; the secondary host contains the larval stage or stages. The life cycle of a blood fluke schistosoma is a micrograph of the schistosoma which the infection of humans is caused by blood flukes the schistosoma is an extremely prevalent disease in Egypt and the blood fluke- schistosoma occurs in the middle east.
Obtain a preserved sheep brain and rinse it thoroughly in water to remove as much preserving fluid as possible. 2. Examine the surface of the brain for the presence of meninges. If they are present locate dura mater, arachnoid mater, and pia mater. 3.
Fetal Pig Dissection -External Anatomy -The incision, exposing the thoracic & abdominal cavities -Digestive System -Respiratory System -Urogenital System -Nervous System Virtual Pig Dissection: The following website has both tutorials and online quizzes. Check it out to better understand the dissection and to study for quizzes & the exam. http://www.whitman.edu/biology/vpd/  Mar 11-9:45 PM 1 2 OBJECTIVE: Clean your pig, locate external anatomy, open the thoracic/abdominal cavities 1 start at the neck 2 33 44 5♂ note that there are different cutting directions for male and female pigs 5♂ 5♀ You need to be able to... -explain what it means to be an ungulate -identify the pigs scientific name -identify dorsal, ventral, anterior, posterior, trunk, head & tail -determine male from female pigs -identify the thoracic cavity & the abdominal cavity Mar 11-10:03 PM 2 HUMANS OBJECTIVE: Students will investigate the digestive system, starting at the mouth and moving along the digestive system to the anus You need to be able to... -explain how digestion starts in the mouth (mechanical and chemical) -explain the function of different teeth shapes -What is the difference between the soft and hard palates Mar 13-11:43 AM 3 OBJECTIVE: Students will investigate the digestive system, starting at the mouth and moving along the digestive system to the anus You need to be able to... -trace & name the digestive tract in order from mouth to anus -know the function of each organ -explain how different organs interact with each other Mar 13-10:14 AM 4 RESPIRATORY SYSTEM OBJECTIVE: Students will investigate the respiratory system, from mouth/nose to diaphragm, identifying the structure and studying the function of each aspect of the system You need to be able to... -trace & name the respiratory system in order from mouth/nose to
The pancreas secretes trypsin and chymotripsin. The liver and gall bladder secrete bile, used for the emulsification of fats. The second section of the small intestine, the jejunum, is where the majority of food is absorbed into the bloodstream. The last section of the small intestine, the ileum, is where the remainder of nutrients is absorbed. What is not absorbed by the small intestine passes into the large intestine, which includes the colon and rectum.