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Pig Body Systems

The basic anatomy of a pig

Jimmy Mosqueda

on 18 September 2012

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Transcript of Pig Body Systems

Pig Body Systems

Jimmy Mosqueda
Karen Rubio
Victor Zamora Skeletal System! Pig Endocrine System Pig Skeleton parts.

protects the brain

Rib Cage
protects heart and lungs

protects blood vessels


suppport, leg movement

hinge joint in ankle

support, protects organs

protect spinal cord, motion, transmitting body weight

hinge joint, ball joint

form joints A pig's endocrine system functions similarly
to that of a human being. It has 9 major organs ,
Each performing a different function or aiding
another organ in a similar function. This system mainly
releases various hormones to control the pig's homeostasis.
The endocrine system contains the hypothalamus, the
adrenal glands, the ovaries, the pancreas, the parathyroids,
the pituitary glands, testicles, and the thyroid glands. Circulatory System Sources Muscular System There are three types of muscle in the pig:

Involuntary or smooth muscle - Found in the digestive and genital systems and the blood vessel walls.
Cardiac muscle - The heart consists largely of this muscle. It is involuntary.
Voluntary or skeletal muscle - This is the main muscle mass forming the muscular-skeletal system. These muscles are attached to the surface membrane covering bones called the periosteum. The circulatory system consists of the heart which is a four chamber suction and pressure pump that moves blood through two separate systems, one to and from the lungs and the other around the body. The blood returns to the heart from the body through a series of veins, which terminate in two large veins called the anterior and posterior vena cava. Blood returns from the lungs through the pulmonary veins. The top two chambers or auricles receive the blood from the veins and pass it into the strong muscular bottom chambers called the ventricles. Oxygen depleted blood from the body enters the right auricle, where it is then pumped into the right ventricle leaving by two pulmonary arteries that deliver the still un-oxygenated blood to the lungs. Oxygenated blood from the lungs is then returned through the pulmonary veins to the left auricle, where it is pumped to the left ventricle and finally out through the main artery, the aorta, to be transported around the body. If the lungs are damaged by disease such as pneumonia, they cannot oxygenate the blood efficiently, the tissues become starved of oxygen and cannot function properly. Respiratory System The function of the respiratory system is to
provide oxygen. The respiratory system of the pig commences at the nostrils which lead into two nasal passages. These contain the dorsal and ventral turbinate bones. The respiratory tract is lined by a smooth membrane. Pigs are intelligent animals.

Like humans, pigs are omnivores, meaning they eat both plants and other animals.

A pig’s snout is an important tool for finding food in the ground and sensing the world around them.

Pigs have an excellent sense of smell.

There are around 2 billion pigs in the world.

Humans farm pigs for meat such as pork, bacon and ham.

Some people like to keep pigs as pets.

Wild pigs (boar) are often hunted in the wild.

In some areas of the world, wild boars are the main source of food for tigers.

Feral pigs that have been introduced into new areas can be a threat to the local ecosystem.

Pigs can pass on a variety of diseases to humans.

Relative to their body size, pigs have small lungs. Piggy Facts :) http://www.sciencekids.co.nz/sciencefacts/animals/pig.html Pig Integumentary System The pigs integumentary system has the same function as a human's. To protect the body and prevent water loss. The outter most layer is the epidermis. Under that lies the dermis, anf the bottom most layer is the fatty layer. Their skin was also used to make footballs! Digestive System The function of the digestive system is to turn food to energy. http://crazyasacoolfox.blogspot.com/2009/11/pigs-really-are-clean-animals.html http://boards.elsaelsa.com/topic/taurus-moon -Mouth: Breaks down food
-Esophagus: Tube from mouth to stomach
-Stomach: Muscular gland lined sac that receives ingesta from the esophagus and conducts physical and chemical digestion
-Small Intestine: Digest proteins, carbohydrates and fats. http://www.funnypica.com/top-50-funny-pig-pictures/funny-pig-03/ Pig Immune System The immune system is the same for almost every single mammal in existence. Certain cells are assigned a job to attack foreign an unknown bacteria and viruses. Sometimes these cells do fai, resulting in an ill pig. Of course, the immune system can always be helped or boosted by giving a pig scheduled vaccines. Nervous System It consists of the brain, the spinal cord, the peripheral nervous system, and the autonomic nervous system. In the autonomic system, actions take place without the pig having to constantly think about it, such as breathing, whereas in the peripheral, a pig must send messages to muscles in its legs to walk. Thepigsite.com
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