What is the purpose of rat dissection?
Dissections help researchers get a 3-dimensional picture of how the systems of a body work together. Now you’ll have the opportunity to see how the respiratory, digestive and circulatory system are arranged spatially.
Where is the heart located on a rat?
thoracic cavity
The heart is centrally located in the thoracic cavity. The two dark colored chambers at the top are the atria (single: atrium), and the bottom chambers are the ventricles. The heart is covered by a thin membrane called the pericardium.
What are the four bones in the hindlimb of the rat?
What are the four bones in the hindlimb of the rat? femur, patella, tibia, and fibula.
What are the safety precaution that need to be considered prior to rat dissection?
Wear goggles, apron, and latex or nitrile gloves when dissecting.
- Specimens are soaked in a formalin solution that contains a very small percentage of formaldehyde.
- Never ingest specimen parts or remove them from the classroom.
- Sharp instruments, such as scissors and scalpels, will be used to cut tissue.
What holds the kidneys in place in rats?
Renal arteries and veins supply the kidneys with blood. 2. Locate the delicate ureters that attach to the kidney and lead to the bladder. The urethra carries urine from the bladder to the urethral orifice (this orifice is found in different areas depending on whether you have a male or female rat).
What is the largest organ in a rat and why?
The liver attached to the caudal surface of the diaphragm, is the largest internal organ of the body. It has four lobes, two of which are partially divided. Unlike most mammals, including mice and carnivores, the rat does not have a gal bladder.
What muscle is removed to expose the femur in a rat?
Procedure: Exposing the bones of the leg Carefully tease away the biceps femoris and gastrocnemius to expose the 3 leg bones: Tibia, Fibula, and Femur and the small patella (kneecap).