Download SVHS ADVANCED BIOLOGY NAME: PERIOD: 1 2 3 4 5 6 D.R.

SVHS ADVANCED BIOLOGY
NAME: ____________________
PERIOD:
1 2 3 4 5 6
D.R. # 15.3 – STRUCTURE OF THE HEART
After reading page 366 titled “HEART WALL”;
1. Name and explain the role of each layer of the heart wall.
Label the diagram of the wall using Figure 15.2
a.
b.
c.
2. Intercalated discs are unique to heart muscle.
Explain the location and role of the intercalated discs.
3. Explain where gap junctions occur and the
role they play.
4. Explain what happens to a person who suffers
from pericarditis.
5. Explain why the unborn baby must have a
foramen ovale in the heart.
6. Label the structures of the heart using Figure
15.3. Include septum
Label the intercalated discs, cell nuclei, and
striations.
7. What significance regarding heart attack patients did the presence of cells with a “Y” chromosome have
in heart transplants?
8. Why are the foramen ovale and the ductus arteriosus not needed after birth?
After reading page 370 titled “VALVES OF THE HEART”;
9. Name structure #15 shown in the diagram. Describe it’s
function.
_____________________________
Function:
10. Name structure #17
and describe it’s function.
____________________
Function:
11. Name structure #14. ________________________
12. Explain how the bicuspid valve (mitral) differs in structure compared to the tricuspid valve.
13. Explain what MVP stands for (its not most valuable player!). Describe the condition, how common it is, and
who is most likely to have this condition.
14. Label each heart below with either “systole” or “diastole”. Systole is the contraction of the ventricles and
diastole is the relaxation and filling of the ventricles. By looking at a the position of the valves determine
which stage each picture show.
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