Frog Dissection Lab Report



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Frog Dissection Lab Report


  1. What do you think is the function of the nictitating membrane, and why?


  1. Trace the path of food through the human digestive tract.

  1. Aka: oral cavity

  1. Physically forms the food bolus




  1. Long tube

  1. Food storage tank

  1. 21 feet long



  1. 5’ long; 2” in diameter

  1. Last way out














  1. Trace the path of blood through the human circulatory system, starting at the right atrium.

1.

Superior & Inferior ?

2.




3.

Valve

4.




5.

Valve

6.

(blood vessel)

7.

(external respiration occurs here)

8.

(blood vessel)

9.




10.

Valve

11.




12.

Valve

13.

(largest artery in the body)

14.




15.




16.

(internal respiration occurs here)

17.




18.




19.

Superior & Inferior ?



  1. Trace the path of air through the human respiratory system.

1.

cavity

2.

(another name for nostril)

3.

cavity

4.

(throat)

5.

(Voicebox)

6.

(wind pipe)

7.

(name for superior portion of left lung)

8.

(Main air tree)

9.

(smallest branch of respiratory tree)

10.

(external respiration occurs in these grape-like sacs)

11.

(chest cavity muscle)




  1. Suppose in a living frog the spinal nerve extending to the leg muscle were cut. What ability would the frog lose? Why?



  1. The abdominal cavity of a frog at the end of hibernation season would contain very small fat bodies or none at all. What is the function of the fat bodies in the frog & to some extent in the human?


  1. Structures of an animal’s body that fit it for its environment are adaptations. What adaptations do humans have that set us apart from other mammals?



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