Laszlo Vass, Ed.D. Version 42-0008-01-01
Please explain the purpose of this lab. Include in your explanation the major concepts you learned and any safety concerns associated with the lab.
Learning the structural and functional differences among arteries, veins, and capillaries.
Identify the major arteries arising from the aorta through observation and dissection of a preserved specimen. identify the major veins draining into the superior and inferior vena cava through observation and dissection of a preserved specimen
Exercise 1: Microscopic Structure of Blood Vessels Observations Sketch your slide in the space below and label the structures indicated in the procedure. Be sure to include a description of the structures you observed on the slide
A. Describe the three layers of the wall of an artery.
The slide looks like a river with few whirlpools. And “whirlpools” has three layers they are:
1 Tunica intima. 2 Tunica Media. 3 Tunica Adventitia.
B. How do arterial walls differ from venous walls?
Arterial walls are made of elastic material and are always open. Venous wall are mainly smooth muscle, and are usually collapsed.
C. What is the function of valves in the peripheral veins?
The valves help the blood to go in one direction against gravity up towards the heart and prevent it from relaxing down.
D. Why are arteries deeper than veins in the body?
Blood is the fluid carried by the vascular system.
It consists of formed elements (blood cells) and liquid (plasma). Arteries are vital for the continuation of blood flow to the body, they are deeper in the body so they are protected
In addition to that - they are also kept warmer that way - to allow for the best blood flow
Exercise 2: Identifying the Major Arteries and Veins on a Cat Questions
A. From the
References: http://www.mayoclinic.com/health/deep-vein-thrombosis/DS01005 http://www.nhlbi.nih.gov/health/health-topics/topics/dvt/ http://www.webmd.com/dvt/tc/deep-vein-thrombosis-treatment-overview