![]() The function of the pig’s nictitating membrane is to protect the pig’s eye.Īnother name for the chest region of the pig is the thorax.Īnother name for the belly region of the pig is abdomen. The function of the pig’s vibrissae is to be a sensory facilitator, it helps the pig to feel its way around in the dark. The function is to catch noises for the eardrum. Moist and warm air goes in and out of the external nares.Īnother word for pinna is auricle. The two external characteristics which distinguish mammals from other animals are hair during development and the females having mammary glands with openings to nourish their youth. Arteries lead from the heart, veins lead to the heart.Ī fetus gets rid of its waste products through the umbilical cord.Įxternal features that are used to separate mammals into orders are method of movement and teeth. Sixteen digits are present, four on each toe.Īn artery is a reddish-pink color, a vein is a darker color. The approximate age of the pig is 100 days. The gestation period refers to the length of embryonic development of a fetus prior to birth. Which type is seen in pigs? Dogs? Deer? Humans? Explain the difference between digitigrade, plantigrade, and unguligrade locomotion. What does the urethral opening excrete in males? Females?ġ9. Describe the major differences between a male and female pig's urogenital opening(s).ġ6. What is another name for the "belly " region of the pig?ġ4. What is another name for the chest region of the pig?ġ3. What is the function of the pig's nictitating membrane?ġ2. What is the function of the pig's vibrissae? Explain completely.ġ1. What is another word for pinna? What is its function?ġ0. What goes in and out of the external nares?ĩ. Name the two external characteristics which distinguish mammals from other animals.Ĩ. What type of external features are used to separate mammals into orders?ħ. How does a fetus get rid of its waste products?Ħ. What differences can be observed in the structure of an artery and a vein?ĥ. What is the approximate age of your pig?Ĥ.
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