Name: _______________________________

BLOOD VESSELS LAB

Instructions: Italicized questions require use of the Nelson text, pp. 250-253 and pg. 257.

  1. Obtain a microscope and microscope slide of "Artery, Capillary, and Vein". The vessels have been stained to make them more visible.

  2. Identify the artery, vein, and capillary. Start out on low power and move to medium and high power when necessary. State one visible feature which helps you identify each type of vessel.


  3. Focus in on the artery. The tunica intima is a very thin, squiggly, dark blue/purple line. The tunica media lies just outside the tunica intima. It is a pinkish colour. Observe this layer on medium and high power noting the concentric (circular) rings.


  4. Draw a cross section of an artery on blank white paper and attach to this lab (pencil only, use a ruler to label the 3 major layers and the lumen).

  5. Focus in on the vein.


  6. Focus in on the capillary.
  7. You may have to search around on the slide using medium or high power looking for a very small hole. Often, capillaries can be found in the purple masses of muscle and connective tissue near the edge of the slide.


  8. Complete the table (use Fig. 5 on pg. 254).

    Description
    Name of Blood Vessel
     carries blood into arm 
     carries blood out of arm 
     carries blood into head 
     carries blood out of head 
     carries blood into upper leg 
     carries blood out of upper leg 
     carries blood carries blood into kidney 
     carries blood out of kidney 
     carries blood into liver 
     carries blood out of liver 

  9. Complete the table (use Fig. 2 on pg. 257).

    Blood Vessel
    Chamber of Heart Connected To?
    Oxy. or Deoxy. Blood?
     pulmonary artery  
     pulmonary vein  
     aorta  
     superior vena cava  
     inferior vena cava