NURS 1220
University of Windsor
Lab # 2
CARDIOVASCULAR SYSTEM: BLOOD VESSELS
AND THE LYMPHATIC SYSTEM
NURS 1220 – BLOOD VESSELS AND LYMPHATIC – Lab# 2
REFERENCE: any anatomy atlas/textbook and available references in lab; this
includes the PowerPoint slideshow on BB.
ACTIVITY ONE: Fetal Pig
Identify the following structures on the fetal pig.
o Ascending aorta
o
o Aortic arch
o
o Brachiocephalic artery
o Coronary artery
o
o Right Subclavian artery
o
o Right Common Carotid artery
o
o Left Common Carotid artery
Left Subclavian artery
Descending Aorta (thoracic
aorta)
Diaphragm
Abdominal aorta
Renal artery (left and right)
Hints for looking at the Fetal Pig:
1. Place the pig on the dissecting tray on its back.
2. Tie a piece of string around the “wrist” of one of the front legs. Run the string
under the dissecting tray and tie it around the wrist of the other front leg. Pull
the string so that the legs are spread apart. Don’t tie this too tight as
adjustments may be necessary as the chest cavity is opened. Do the same with
the hind legs.
3. Locate the heart. Turn the heart onto the dorsal side without removing it.
4. Locate the superior and inferior venae cavae (the two veins that bring blood
to the heart from the body).
5. Locate the right and left pulmonary veins. (The veins that bring blood to the
heart from the lungs).
6. Carefully dissect around the heart, picking away the connective tissue
between the blood vessels. Locate the pulmonary artery, on the ventral side
of the heart, as it leaves the right atrium.
7. Locate the aorta, the largest and most important artery; it can be found just
beneath the pulmonary artery as it leaves the left ventricle.
ACTIVITY THREE: Blood Vessel Slide
Look at the prepared blood vessel slide set on 400x total magnification, identify
the artery and vein. Be able to differentiate between the different vessels.
Questions
1. Blood is carried away from the heart by ______________________, which
divide into smaller vessels called _____________________. The vessels where
gases/nutrients are exchanged between the blood and the body’s cells are the
___________________________. These drain into the venules, which unite to
form increasingly larger vessels called ___________________.
2. Compare and contrast the blood vessel function and structure by completing
the table below. Examples have been given.
Blood Vessel
Arteries
Function
Carries blood away from the
heart
Structure of Wall
Capillaries
Veins
Three layers: all thinner than
in arteries.
3. Label the following blood vessel figure using appropriate vocabulary (name of vessel,
layers of walls)
4. List the general function of the following vessels. An example has been given.
Structure
Inferior vena cava
Pulmonary arteries
Superior vena cava
Pulmonary veins
Aorta
Coronary
arteries/veins
Function
Returns deoxygenated blood to heart from lower body
5. Label the following figure.
6. Match the following actions with the correct answer. Answers may be used more than once.
a. lymph
b. lymphatic capillaries
c. lymphatic vessels
______
Contains macrophages
______
Begin blindly near blood capillaries
______
a.k.a. lymphatics
______
Fluid ‘lost’ to the interstitium
______
Empty into the right and thoracic ducts
______
Remove foreign materials from lymphatic fluid
d. lymph nodes
7. Fill in the blanks regarding lymphatic vessels/organs
Lymph from the left arm would return to the heart through the __________________________. The
major job of the ____________________is to destroy worn-out red blood cells and return some of the
products to the liver. The lymphoid tissues which trap and remove bacteria in the lymph are called
______________________.