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Name: ________________________________
Period: _________
Cow Heart Dissection
1) Obtain a heart, gloves, apron, and dissecting tools.
2) With your group, determine which side of the cow heart you have.
3) Try to determine what areas of the heart you can identify. Working with
other groups can help you figure out what portion of the cow heart you
have.
Discussion
4) Which part of the cow heart did your group have? How do you know?
5) What areas of your heart could you identify?
6) Why are cow, pig, and sheep hearts used to study the anatomy of the
human heart?
7) Which body system does the heart belong to?
8) How many chambers are found in the mammalian heart?
9) Which chambers are located at the apex (top) end of the heart?
10) Which are the pumping chambers of the heart
11) What are the receiving chambers of the heart?
12) How do the walls of the atria compare to the walls of the ventricles and
why are they different?
13) What is the function of the septum?
14) Why are the walls of the right and left ventricles different thickness?
15) How many valves are found in the heart?
16) What is the purpose of heart valves?
17) Vessels that carry blood away from the heart are called ____________,
while _____________ carry blood toward the heart.
18) What is the purpose of the coronary artery? What do you think happens if
this vessel gets blocked?
19) What tissue comprises the bulk of the myocardium?
20) What is the name of the sac surrounding the heart?
21) What is the lining of the heart called?
22) What bone protects the heart anteriorly?
23) What is the scientific term for the “heart strings” that extend from the AV
cusps to the papillary muscles? What do you think the function of this
structure is?
24) Using words, trace blood flow through the major blood vessels, the body,
heart, and lungs starting AND ending with deoxygenated blood returning
from the body.