Frog muscle lab report

Biology - Animal Physiology Lab Fall Writing a Physiology Lab Report Your write-up for Bio should be a clear and concise report of the purpose of the experiments you did, the way in which they were performed, the resulting data, and your conclusions based on these data. In other words, your report should read like a scientific research article.

Frog muscle lab report

Modern Biology, Holt Background: As members of the class Amphibia, frogs may live some of their adult lives on land, but they must return to water to reproduce. Eggs are laid and fertilized in water.

The third lid, called the nictitating membrane, is transparent. Inside the mouth are two internal nares, or openings into the nostrils; two vomerine teeth in the middle of the roof of the mouth; and two maxillary teeth at the sides of the mouth.

Also inside the mouth behind the tongue is the pharynx, or throat. In the pharynx, there are several openings: The digestive system consists of the organs of the digestive tract, or food tube, and the digestive glands.

From the esophagus, swallowed food moves into the stomach and then into the small intestine. Bile is a digestive juice made by the liver and stored in the gallbladder. Bile flows into a tube called the common bile duct, into which pancreatic juice, a digestive juice from the pancreas, also flows.

The contents of the common bile duct flow into the small intestine, where most of the digestion and absorption of food into the bloodstream takes place.

Indigestible materials pass through the large intestine and then into the cloaca, the common exit chamber of the digestive, excretory, and reproductive systems.

The respiratory system consists of the nostrils and the larynx, which opens into two lungs, hollow sacs with thin walls. The walls of the lungs are filled with capillaries, which are microscopic blood vessels through which materials pass into and out of the blood. The circulatory system consists of the heart, blood vessels, and blood.

The heart has two receiving chambers, or atria, and one sending chamber, or ventricle. Blood is carried to the heart in vessels called veins.

Veins from different parts of the body enter the right and left atria. Blood from both atria goes into the ventricle and then is pumped into the arteries, which are blood vessels that carry blood away from the heart.

The kidneys are organs that excrete urine. Connected to each kidney is a ureter, a tube through which urine passes into the urinary bladder, a sac that stores urine until it passes out of the body through the cloaca. The organs of the male reproductive system are the testes, sperm ducts, and cloaca.

Those of the female system are the ovaries, oviducts, uteri, and cloaca.

U.S. Senate Commitee on Banking, Housing and Urban Development

The testes produce sperm, or male sex cells, which move through sperm ducts, tubes that carry sperm into the cloaca, from which the sperm move outside the body. The ovaries produce eggs, or female sex cells, which move through oviducts into the uteri, then through the cloaca outside the body.

Nerves branch out from the spinal cord. Voluntary muscles, which are those over which the frog has control, occur in pairs of flexors and extensors.

The Power Hour News

When the extensor of that body part contracts, the part straightens. In this lab, you will dissect a frog in order to observe the external and internal structures of frog anatomy.Skeletal Muscle, Summation and Tetanus Note: The lab presented here is intended for evaluation The equipment used to evoke and record contractions from the frog Gastrocnemius muscle using the IXTA.

Warning: The muscle preparation used in this experiment is functional for a limited period of time. Experiment AM Skeletal Muscle. PhysioEx™ Content Information Description PhysioEx™ Laboratory Simulations in Physiology is easy-to-use laboratory simulation software that consists of 12 exercises containing 63 physiology lab activities that can be used to supplement or substitute wet labs.

PhysioEx allows students to repeat labs as often as they like, perform experiments without harming live animals, and. 5 Oct 19 Exp. 6 Resting Potentials of Frog Muscle Cells / Quiz during Lecture Oct 14 continued 4 Oct 12 Exp.

5 Neuromuscular Transmission in Frog / Lab Report 1 due in lecture.

Frog muscle lab report

Frog Dissection Lab Report Background Knowledge In the virtual dissection, it demonstrated to us how to properly pin down the frog, cut the top layer and bottom layer of skin into flaps pin those down, take out the organs and showed us the different organs that the frog had.

Frog Heart Experiment Rob MacLeod, Brian Birchler, and Cris Lapierre February 10, 1 Purpose and Background Purpose: To examine the e ects of pre-tension, temperature, and various drugs on the frog heart muscle.

Frog Skeletal Muscle Lab I. updated 23 Oct at am. The objective of this exercise is for students to 1) determine the stimulus parameters necessary to demonstrate threshold, twitch, recruitment, multiple summation, incomplete tetanus, fused tetanus, fatigue, and the latent period.

Wood Bison Species Profile, Alaska Department of Fish and Game