Download Frog 3322 Dissection Assessment sheet

Name:__________________________
Group:___________ Block:____________
Rana pipiens Dissection Assessment Sheet 3322
Directions: When you are ready to identify a group of organs (in the groups below), call
your teacher over. Each individual member of each group must identify the organs. If an
individual misses an organ, they must wait until the next circulation to identify that group
again to receive credit.
EXTERNAL ANATOMY
Group 1: Directional Terms
Dorsal______
Ventral______
Group 2: External
Eye ____
Superior______
Inferior______
nictating membrane ______ tympanic membrane _____
External nares _____
Label the external anatomy diagram
1. Describe how a frog jumps.
2. Are the hind legs or forelegs more important in jumping?
3. Is the skin of the frog smooth or rough?
4. Is the skin of the frog moist or dry?
5. Describe the color of the dorsal and ventral surfaces of your frog.
6. How many digits (fingers) are on each of the frog’s hands?
7. How many digits are on each of the frog’s feet?
8. Is your frog male or female? How can you tell?
9. How are the feet of a frog adapted for swimming?
10. How is the coloration of the frog an adaptation to their habitat?
11. How is the location of the nares and adaptation to living in water?
Group 3: Oral Cavity
Internal nares_____ vomerine teeth ______
Eye sockets_____
Label the Diagram
tongue _____
eustation tubes_____
Glottis _____ Maxillary teeth _____
1. Where is the tongue attached to the mouth?
2. Where is the nictating membrane attached?
3. The tip of the tongues is very sticky. What would be an advantage of this?
INTERNAL ANATOMY
Cut/pinned properly (10 points) ____________
Do you have ovaries? ______________ If so carefully remove the eggs and put them in the
waste container.
Group 4: Digestive System
Liver _____
Gallbladder _____
Stomach _____
1. How many lobes does the liver contain?
2. What is the shape of the stomach?
3. Describe the mesentery that holds the intestines.
Small intestines _____
Mesentery _____
Large intestines _____
Group: 5 Digestive System part 2
Espohagus _____
pancreas _____
spleen _____
Cloaca _____
Gullet opening ______
Anus _____
Go to the teacher’s desk and measure the length of the digestive system that has been laid out
for you. Examine the stomach’s contents.
1. How long is the digestive system?
2. What do you note about the contents of the stomach?
Group 6: Respiratory System
Lungs ______
Trachea ______
Glottis ______
1. What happens when air is pumped into the lungs?
Group 7: Circulatory System
Heart ______
Coronary Artery ______
Group 8: Urogential System
Testes _____
Ovaries ______
Fat bodies ______
ANALYSIS AND CONCLUSION
Write a paragraph summarizing what you learned during this lab. In your discussion, list
three adaptations that allow frogs to transition from living in the water to living on land. This
should be in complete sentences and typed.
Lab Extension: Answer each question, typed, on separate paper. This is the culminating
activity of your Anatomy unit. You may include diagrams, but must also explain your
thoughts in words.
1. Explain how the digestive system (mouth, pharynx, esophagus, stomach, small and large
intestines, rectum) converts macromolecules from food into smaller molecules that can be
used by cells for energy and for repair and growth. In your answer, describe the different
parts of the digestive system, what type of digestion occurs there and how each contributes
to gaining energy for growth and repair.
2. Explain how the circulatory system (heart, arteries, veins, capillaries, red blood cells)
transports nutrients and oxygen to cells and removes cell wastes. Describe how the kidneys
and the liver are closely associated with the circulatory system as they perform the
excretory function of removing waste from the blood. In your answer, discuss how kidneys
remove nitrogenous wastes, and how the liver removes many toxic compounds from blood.
3. Explain how the respiratory system (nose, pharynx, larynx, trachea, lungs, alveoli)
provides exchange of oxygen and carbon dioxide. Include where gas exchange actually
takes place and the role of the capillaries that rest on the alveoli.
4. Explain how the nervous system (brain, spinal cord, sensory neurons, motor neurons)
mediates communication among different parts of the body and mediates the body’s
interactions with the environment. Identify the basic unit of the nervous system, the neuron,
and explain generally how it works. You may include a diagram in this answer to help you,
but you also need to put your thoughts into words.
5. Explain how the muscular/skeletal system (skeletal, smooth and cardiac muscles, bones,
cartilage, ligaments, tendons) works with other systems to support the body and allow for
movement. Also include a brief discussion on how bones produce blood cells and how they
work with the endocrine system in storing and releasing calcium.
6 Explain how the sexual reproductive system allows organisms to produce offspring that
receive half of their genetic information from their mother and half from their father and
that sexually produced offspring resemble, but are not identical to, either of their parents.
Include in your answer, a brief overview of fertilization.
7. Discuss how communication between cells is required for coordination of body functions
in reference to the nervous system and endocrine system. Explain how the nerves
communicate with electrochemical signals, hormones circulate through the blood, and
some cells produce signals to communicate only with nearby cells.
8 . Recognize that the body’s systems interact to maintain homeostasis. Describe the basic
function of a negative feedback loop.