External features ventral dorsal coloration record the colors of the dorsal and ventral sides of your frog. Froguts is a subscription service, but there is a free demo of a basic frog dissection available. To determine the frogs sex, look at the hand digits, or fingers, on its forelegs. To become acquainted with the internal anatomy of the frog 3. Apr 09, 2015 keep in mind that 6 students have already been assessed using this rubric. The frogs heart is the small triangular organ at the top. To explore other aspects of the frog, you may need to subscribe. In this lab, you will dissect a frog in order to observe the external and internal structures of. Displaying all worksheets related to frog dissection. Draw the frog s front foot and the back foot on the diagram. Ventricle chamber of a frogs heart that pumps blood out of the heart to the lungs and other parts of the body. Truncus arteriosis large artery in a frog that carries blood away from the ventricle into branches that lead to all parts of the body. The dissection is simple, only requiring dissecting scissors, and can be completed in 1 or 2 class periods depending on your preference. Frog dissection frog dissection part 1 frog dissection part 2 frog life.
Humans and frogs both belong to the phylum chordata. Cloacal opening opening of cloaca through which undigested food, urine, eggs, and sperm are passed. And you can do it all without taking a real frog apart. Apr 22, 2015 the insides of a frog represent the general form of a vertebrate, everything is in there, the lungs, heart, stomach, intestines. Locate the frog s eyes, the nictitating membrane is a clear membrane that is attached to the bottom of the eye. Opening up the frog 1 lay frog on dorsal side on its back 2 insert scissors just above anal opening 3 make incisions as shown, but not too deep.
Describe each organsystem as program guides you 1 frog skin 2 nictitating membrane 3 external nares 4 tympanum 5 leg. Compare the length of your frog to other frogs your frog cm frog 2 frog 3 frog 4 frog 5 average l e n g th 5. Introduction will be provided by instructor during lab. Mouthparts of the frog eye socket gullet glottis tongue maxillary teeth internal naris nostril vomerine teeth opening to eustachian tube opening to vocal sacs external. Head the anterior end of the frog extending to and including the eardrums. While the way their bodies work is nowhere near identical to a. On the outside of the frogs head are two external nares, or nostrils. Observe several frogs to see the difference between males and females.
This was made to go with the glencoe frog dissection lab, but could most likely be use. Hsts high school science lesson on frog dissection includes external and internal anatomy, as well as printable pdf diagram to label. For more detailed dissection instructions and information, check out carolina dissection kits. Although you may feel intimidated at the thought of dissecting an animal, you can have a profound learning experience if you. Before we proceed while dissecting, be respectful of your lab partners and of the specimen you are about to explore, observe and learn from. Frog brain and bones an extra task for students who finish the dissection early, remove the brain of the frog and expose the femur. Name the organs that make up various systems of the frog. Apr 03, 2016 frog internal anatomy covers only the internal anatomy, useful for splitting the dissection of if you are short on time and want to skip the external anatomy. The name is appropriate because amphibians spend their immature lives in water and their adult lives primarily on land. I would like to briefly explain the layout of the site. Unlike a mammal heart, it only has three chambers two atria at the top and one ventricle below. Use scissors to lift the abdominal muscles away from the body cavity. This lab report contains lots of questions over sections of study and lines for students to fill in the answers.
Remember, there is a difference in a frog s front and back feet. Below is a brief survey of the internal and external anatomy of the frog. The insides of a frog represent the general form of a vertebrate, everything is in there, the lungs, heart, stomach, intestines. This large plain preserved grass frog dissection specimen has a 4 to 4. Internal anatomy complete the dissection according to your virtual lab notes. Worksheets are alternate frog dissection work, frog dissection lab report, frog dissection work, underlying, netfrog dissection name, zoology name pigeon dissection, frogs anatomy and physiology, the world of amphibians. On the outside of the frog s head are two external nares, or nostrils.
As members of the class amphibia, frogs may live some of their adult lives on land, but they must return to water to reproduce. Frog dissection diagram and labeling the exploring nature. What do you think is the function of the nictitating membrane, and why. If you frog is female, remove the oviducts and ovisacs and place them on. Review for frog dissection learn with flashcards, games, and more for free. Helps to destroy old red blood cells and produces antibodies to help fight infected cells and cancerous cells. Objectives 1 describe the form and function of various organs found in frogs 2 identify and name the organs that make up various systems of the frog. On your frog diagram, label the major external body parts parts of the face, abdomen, thorax, limbs and digits. Student guide to the frog dissection the biology corner this simple. Use this printable frog dissection diagram with labeled parts. Figure 1 hand digits of male and female frog name class date frog dissection skills practice lab. Use these descriptions and the picture to identify each of the following external structures. Labeled diagram nonfiction text structure text features.
Mark with a circle the location the pins should go. Virtual dissection external anatomy photos dissection photos external frog diagram and slicing should be made away dissection instructions 1. Scissors serve better because the point of the scissors can be pointed upwards to prevent damaging organs underneath. Urogenital system of the frog digestive system and other parts of the frog. Frog dissection external anatomy of the frog mouthparts of the frog the frog heart. The frog s heart is the small triangular organ at the top. It also includes a verbal quizzing checklist and a matching anatomy to organs diagram at the end. To learn and practice dissection technique materials and equipment dissection tray dissection kit preserved. Mammalian heart dissection guide illustrated by leah hofgesang 470219676 2015 wards science all rights reserved. This simple worksheet can supplement a lab or dissection of the frog. A male frog usually has thick pads on its thumbs, which is one external difference.
In this lab, you will dissect an frog in order to observe the external and internal structures of the frog anatomy sexing your frog. Frog dissection academic bullfrog intro video virtual options. Although many differences exist between humans and frogs, the basic body plans are similar. Use these descriptions and the picture to identify each of the following. The science documents section contains all the worksheets, diagrams. To locate the structures, organs and systems of the frog 4. Mouthparts of the frog eye socket gullet glottis tongue maxillary teeth internal naris nostril vomerine teeth opening to eustachian tube opening to vocal sacs external anatomy of the frog hindlimb foot ventral forelimb tympanic membrane posterior dorsal nictitating membrane anterior eye mouth external nares hand the frog hean ventral view. This plain grass frog specimen provides a great dissection experience at a low cost. Place the frog in the dissecting pan ventral side up. This lesson could be extended to examine amphibian reproduction and evolution. Frogs are classified as amphibians or animals that live a double life.
Studentfriendly interactive notes, a visual ppt, and a quiz are included in this frog dissection product. Locate and label the upper jaw or maxilla and the lower jaw or mandible. Frog anatomy coloring worksheet biology libretexts. Answer the postlab questions when cleaned up and done. Dissecting a frog is a common and important experience in introductory biology or anatomy. Male frogs are also usually smaller than female frogs. When looking at the frog, it is located on the right side.
Not able to find exactly what i needed for frog dissections myself, i created this product as a complete guide for my miniunit on frog dissections. In this investigation you will observe the external features of a preserved frog and identify parts of its external anatomy. By studying the anatomy of the frog, you will better understand the human body systems. Urogenital system of the frog digestive system and other parts. To assess the function of structures from observing the actual anatomy of the organism 5. Before we proceed while dissecting, be respectful of your lab partners and of the specimen you are about to explore. If your frog is male, remove the testes and mullerian tubes if present, and place them on your sheet. You can see how all the organs and body parts relate to each other.