The organ that is the first major site of chemical digestion: _ĥ. The membrane holds the coils of the small intestine together: _Ģ.This organ is found under the liver, it stores bile: _ģ. Label the parts of the urogenital system.ġ. System - urine, sperm and eggs exit here. The bladder stores urine.Ĭloaca - mentioned again as part of the urogenital In males, theyīladder - An empty sac located at the lowest part Structures that look similar, but serve no actual purpose. May see a curly structure around the outside of the kidney, these are Oviducts - females do not have testes, though you The top of the kidneys, they are pale colored and roundish. Testes - in male frogs, these organs are located at Often the top of the kidneys have yellowish stringy fat bodies attached. The lower back of the frog, near the spine. Kidneys - flattened bean shaped organs located at You will need to know the structures for both the male and female frog _ cm Intestine length _ cm Urogenital SystemĪnd excretory system is combined into one system called the urogenital system. Record the measurements below in centimeters. Intestine: Remove the small intestine from the body cavity and carefully Remains of the frog's last meal in there.
Stomach: Cut the stomach out of the frog and open it up. STOP! If you have not located each of the organs above, do not continue on Open the frogs mouth and find the esophagus, poke your probe into it The esophagus is the tube that leads from the frogs mouth to the stomach. It upward, where it gets smaller is the beginning of the esophagus. Esophagus-Return to the stomach and follow Spherical object serves as a holding area for blood.ġ2. Spleen-Return to the folds of the mesentery, this dark red Sewer.) The opening to the outside of the doy is the anus.ġ1. Sperm, eggs, and urine exit the frog's body. The large intestine leads to the cloaca, which is the last stop before solid wastes, Intestine-As you follow the small intestine down, it will Of digested nutrients occurs in the small intestine. They will carry absorbed nutrients away from the intestine. Note the blood vessels running through the mesentery, The ileum is held together by a membrane called Of the small intestine is called the duodenum, the curled portion It it a gland that often falls apart during the preserving process so it many not be visible on your frog. Pancreas - This structure is located on the inside curve of the stomach. The exit of digested food from the stomach to the small intestine.Ĩ. The stomach is the first major site of chemical digestion.įrogs swallow their meals whole. Stomach-Curving from underneath the liver There will be a small green sac under the liver. Gall Bladder -Lift the lobes of the liver, Lungs - Locate the two spongy lungs by looking behind the heart and liver.Ħ.
A single ventricle located at the bottom of the heart. The leftĪnd right atrium can be found at the top of the heart. Heart - at the top of the liver, the heart is a triangular structure. The live secretes a digestive juice calledīile which is needed for the proper digestion of fats.Ĥ. The right lobe, the leftĪnterior lobe, and the left posterior lobe. This brown colored organ isĬomposed of three lobes. Largest structure of the the body cavity. Peritoneum A spider-web like membrane that covers many of the organs, most easily seen covering the heart. Just on the inside of the abdominal wall.Ģ. Need to be removed to see the other structures. Yellow color, if you have a particularly fat frog, these fat bodies may Bodies -Spaghetti shaped structures that have a bright orange or
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