Lab Quiz (Fetal Pig)

Front 1

Conservation of water is a critical problem faced by terrestrial organisms. Given the water requirements for digestion, how is the digestive tract anatomy adapted to life on land?

Back 1

Colon reabsorbs more water

Front 2

Speculate about the outcome if food passes too slowly or too rapidly through the colon.

Back 2

Too slow=too much water, constipation

Too fast=not enough water absorbed, too much in feces, diarrhea

Front 3

In terrestrial vertebrates, what is the advantage of having the surfaces for oxygen and carbon dioxide exchange embedded deep in the lung tissue?

Back 3

Prevents water loss

Front 4

What differences would you expect to see in the appearance of lung tissue in adult and fetal pigs? Explain.

Back 4

Fetal pigs=more deflated, less spongy (still in mother)

Front 5

The trachea is composed of rings of cartilage, while the nearby esophagus is composed of muscle and lacks cartilage. How are these structural differences related to the functions of each?

Back 5

Trachea=cartilage prevents collapsing

Esophagus=muscles push food down

Front 6

More than any other organ in the body, the liver is most often damaged by excessive intake of substances such as alcohol, anabolic steroids, vitamin A, acetaminophen, and some prescription drugs, a condition called toxic hepatitis. Why would this be?

Back 6

Liver filters.

Toxic hepatitis-Liver would not be able to handle the toxins in the blood because it is filtered by the lungs.

Front 7

Scientists have concluded that a four-chambered heart is necessary to support the high metabolic rates seen in 'warm-blooded' animals (endotherms)--that is, birds an mammals. In 2000, scientists at North Carolina State University reported that a 66-million-year-old dinosaur found in South Dakota appeared to contain a fossilized heart with two ventricles, as one would find in a four-chambered heart. What does this discovery suggest about the metabolism of this dinosaur and the position of this species of dinosaur in the evolutionary tree?

Back 7

After reptiles, before birds.

Metabolism of dinosaur=dinosaur could be cold-blooded with higher metabolic rate,

Front 8

Know the anatomy of the heart.

Back 8

.

Front 9

Know the respiratory system.

Back 9

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