httpheartlabrobartscadissectdissectionhtm amp httpspsk12arusmassengaleheartdissectionhtml Lets put a name to its parts The mammal heart has two atria and two completely separated ID: 921260
Download Presentation The PPT/PDF document "Heart Dissection Images and text from" is the property of its rightful owner. Permission is granted to download and print the materials on this web site for personal, non-commercial use only, and to display it on your personal computer provided you do not modify the materials and that you retain all copyright notices contained in the materials. By downloading content from our website, you accept the terms of this agreement.
Slide1
Heart Dissection
Images and text from
http://heartlab.robarts.ca/dissect/dissection.htm & http://sps.k12.ar.us/massengale/heart_dissection.html
Slide2Let’s put a name to its parts!
The mammal heart has two atria and two completely separated
ventricles.The left side of the heart handles only oxygenated blood and the right side receives and pumps only deoxygenated blood
Slide3Let’s start the dissection: External Structure
The heart is now in the pan in the position it would be in a body as you face the body.
Right
LeftFront or Ventral Side of the HeartIt is very important that you figure out the correct orientation of the heart, try to find the aorta, you may actually see the three branches, remember that the wall of the aorta will be very thick.
The left ventricle wall should also be much harder than the right ventricle, squeeze it to find out!!!
Slide4Make sure you know what angle you are viewing your heart, this is the anterior view.
Aorta
Slide5External StructureTake a picture of your heart and label the chambers listed below:Left atria – upper chamber to your rightLeft ventricle – lower chamber to your rightRight atria – upper chamber to your leftRight ventricle – lower chamber to your left
Slide6External Structure
Using popsicle sticks label the different veins and arteries before taking a picture. This will help you with labeling.
Take a picture of the broad end of the heart (superior view)
and label the veins and arteries on your diagram
pulmonary artery
AortaPulmonary veinVena Cava
Slide7More Help (posterior view)
Slide8More Help (posterior view)
Slide9Superior View (More Help)
Slide10Internal StructureHold the heart with the anterior view facing you. Make a coronal (frontal) cut through the heart. Stop cutting when your knife reaches the top portions of the atriaExamine the internal structure.Find where the inferior and superior vena cava enter the right atrium and where the aorta leaves the left ventricle.Examine the left ventricle. Notice the thickness of the ventricular wall (it pumps blood to the whole body!)Locate the valves between the atriums and ventricles.
Take a picture of your dissection and label:
Slide11Slide12BE STILL MY BEATING HEART!
Please Clean up:
Place all of the heart pieces into a zip lock bag
Clean all dissection tools with HOT! Water and soapClean tray with hot water and soapClorox all surface areasPlease respond to all conclusion questions.