Fetal Pig Dissection Lab Essay

2279 words - 9 pages

Mendez 1
Caroline G. Mendez
Mrs. Sturgis
Period C
Anatomy
11-17-2014
Fetal Pig Dissection Lab Analysis Questions
1. The word "gestation" comes from the Latin "gestare" meaning "to carry or to bear."
Gestation period means fetal development period from the time of conception until birth. For
humans, the full gestation period is normally 9 months.
2. The approximate age of my pig Porkers measured with the yarn is 41 days.
3. There are 15 digits visible.
4. The walls of both veins and arteries have three layers of tissues, but veins are much thinner
and less elastic than arteries. Veins also have valves that help in the process of returning
blood to the heart by preventing blood from flowing reverse. Arteries transport oxygenated
blood away from the heart and veins transport de-oxygenated blood back towards the heart.
Arteries have:
-thick muscular wall
-much elastic tissue
-small lumen relative to diameter
-not permeable
-valves in pulmonary artery and Aorta only
-blood under high pressure (10-16kPa)

Mendez 2
-blood moves in pulses
-blood flows rapidly
Veins have:
-thin muscular wall
-little elastic tissue
-large lumen relative to diameter
-not capable of constriction
-not permeable
-valves throughout all veins
-blood under low pressure (1kPa)
-no pulses
-blood flows slowly
5. A fetus, especially a fetal pig, gets rid of its waste products through the umbilical cord. The
waste products in the blood stream of the fetus is passed into the blood stream of the mother.
Then the mother gets rid of the waste herself for the both of them. Fetal pigs, like all
mammals, filter waste through the placenta. Fetuses develop with an amniotic sac, placenta
and an umbilical cord. These three components serve the same function across mammalian
development. The amniotic sac houses the embryo and the placenta, which are attached via
the umbilical cord. The mother's blood passes through the placenta and cord carrying
nutrients, and then the waste product is carried back out through the cord to be filtered by the
placenta. The filtered blood is then returned to the mother. The fetus doesn't produce urine or
fecal matter, even after the development of the digestive and urinary tract, because it doesn't

Mendez 3
yet digest food. Instead, all nutrients are received and expelled via the bloodstream. The
placenta serves as a filter between the mother and fetal pig's blood streams so that the two are
never in direct contact. However, the placenta cannot filter out all undesirables, such as some
drugs, or in the case of people, alcohol. After the baby is born, the umbilical cord attached to
the placenta is cut, and the piglet begins typical digestive processes to ingest nutrients and
expel waste. The placenta is also birthed by the mother following the piglet, as it is no longer
needed.
6. External features mammals are classified into are listed in the following sentences.
Mammals are a class of vertebrate, air-breathing animals whose females are characterized
by the...

Find Another Essay On fetal pig dissection lab

morphological change Essay

2180 words - 9 pages . In this research 21,861 animals had been examined and found the highest prevalence of hydatid cysts (5.10 %) followed by buffaloes (3.81%), pig (0.87%) and sheep (0.075%). (Pednekar, 2009, Schramm, 2011). Another article had study on morphological development and characterization of aromatase and estrogen receptors alpha and beta in fetal ovaries of cattle. In this study the aim was to understand the role of estradiol-17β in fetal ovarian

Embryonic Stem Cell Research Provides Revolutionary and Life-saving Breakthroughs

3827 words - 15 pages chronic disabilities waiting on a cure, scientists in a lab experimenting with a petri dish. These cells offer unimaginable opportunities for regenerative medicine because they can retain the ability to differentiate. Stem cells are classified as either adult or embryonic. Embryonic stem cells can reproduce any cell in the body, whereas adult stem cells can only produce somatic cells within their own tissue type. Somatic simply means a cell that

Classification Of Vegetarians

3835 words - 15 pages as for animal rights, is a lifestyle for Sarah. A story she told me during one of our interviews was she has never dissected anything. For a Biology lab assignment, here at IUP Kittanning, the students were going to dissect a fetal pig. Sarah said she went and talked with the professor and got a packet of papers to do instead so she could be excused from the lab. Sarah also had to take a separate test. The rest of the Biology students took the

Experiments on Animals Should Not be Banned

2962 words - 12 pages : ?The vaccines for polio, which would otherwise disable or kill thousands of American children each year ?Drug treatments to replace surgery for babies with a common heart defect ?Fetal surgery for desperately ill babies still in the womb ?Drug treatment to help prevent severe newborn jaundice and resulting brain damage ?Surfactant therapy to help premature babies breathe properly ?Establishing the effectiveness of drug treatment for

Biology

7536 words - 30 pages ( sagittal3. Interpret this lab description: "Make a ventral, superficial, median incision from anterior to posterior through the skin of your fetal pig."On the belly side (ventral) make a shallow (superficial) incision cutting the skin along the midline (median) from the front end near the neck (anterior or cephalic end) to the bottom end below the umbilical cord (caudal or tail end).*Note: This description would be slightly different for humans

The Use of Mifepristone to Terminate a Pregnancy

4306 words - 17 pages The Use of Mifepristone to Terminate a Pregnancy The medication "mifepristone" was invented in France by Dr. Etienne-Emile Baulieu in 1980. It is widely know as "RU-486" throughout North America. The letters is taken from the initials of the pharmaceutical company Roussel-Uclaf. The "486" is an arbitrary lab serial number. 1 It was first introduced in France, where it is called Mifegyne. ® It has been used, in combination with prostaglandin

When the Bubble Burst

1539 words - 6 pages By the time I arrived state side from my second tour in the Middle East the housing bubble had already burst. I noticed a drastic change in the way that many of my friends and family were living. Several of my friends that worked in real estate had sold their boats and seconds houses. My own stock portfolio had lost a third of its value. My sister and her husband had defaulted on their home mortgage leaving them scrambling for a place to live. I

phase diagram

4456 words - 18 pages Naphthalene to the Durene sample. The group followed the provided tables when creating the mixtures for each run. While the lab procedure called for the experiment to take two weeks the group completed the experiment in one lab period. The group then proceeded to export its data to a flash drive from the GLX. However, after exporting only three trials, the GLX froze and would no longer operate. All of the group’s data was lost, and the group

Revolutionary Work of Art

1890 words - 8 pages Walter Benjamin emphasizes in his essay, “The Work of Art in the Age of its Technological Reproducibility” that technology used to make an artwork has changed the way it was received, and its “aura”. Aura represents the originality and authenticity of a work of art that has not been reproduced. The Sistine Chapel in the Vatican is an example of a work that has been and truly a beacon of art. It has brought a benefit and enlightenment to the art

Enlightenment Thought in New Zealand Schools

1594 words - 6 pages In this essay I will be looking at how the political and intellectual ideas of the enlightenment have shaped New Zealand Education. I will also be discussing the perennial tension of local control versus central control of education, and how this has been affected by the political and intellectual ideas of the enlightenment. The enlightenment was an intellectual movement, which beginnings of were marked by the Glorious Revolution in Britain

Psychological Egoism Theory

2240 words - 9 pages The theory of psychological egoism is indeed plausible. The meaning of plausible in the context of this paper refers to the validity or the conceivability of the theory in question, to explain the nature and motivation of human behavior (Hinman, 2007). Human actions are motivated by the satisfaction obtained after completing a task that they are involved in. For example, Mother Teresa was satisfied by her benevolent actions and

Similar Essays

Disecting A Fetal Pig Lab Report

1060 words - 5 pages IntroductionThe dissection of the fetal pig in the laboratory is important because pigs and humans have the same level of metabolism and have similar organs and systems. Also, fetal pigs are a byproduct of the pork food industry so they aren't raised for dissection purposes, and they are relatively inexpensive.Procedure - as in the text bookPurpose:The purpose of such activity is to dissect the fetal pig and observe various

Alternatives For Animal Dissection Essay

1118 words - 4 pages should provide the money for the science department since it pays for the equipments and specimens for the dissections. The amount of money the school needs depends what alternatives to use. Using clay models of the specimens cost approximately $5,100 (frog) to $13,920 (fetal pig) for a class set if it was ordered on Ward's Science. For the virtual dissection software, it ranges from $55 to $417 on Ward's Science. Having dissections in

They Made Us Many Promises Essay

2866 words - 11 pages points for the lab.Some of the laboratories use stains and chemicals which can damage clothing, so please dress accordingly to laboratory. Neither UIC nor the Biology Department will assume any responsibility for damaged clothing. Also, there will be a fetal pig dissection that encompasses two of the lab sessions. If you have religious or ethical objections to this, please contact Michael Muller as soon as possible. An alternate exercise may be

Meet, Meat Industry Essay

1519 words - 6 pages about the meat people eat, so lab grown should be an easy transition onto the shelves. The bioengineering required to make "invitro meat" is an offshoot of the technologies being developed to grow tissue from stem cells for medical transplants. Researchers in the Netherlands grew a small amount of pork from harvested pig cells, so lab produced meat could be on the menu within five years (Grose 1). These are not meat substitutes, or ‘‘artificial’’ meat