Grade 11 Heart Dissection Worksheet
A worksheet for Grade 11 science students to review the anatomy and function of the mammalian heart, preparing for or following a heart dissection lab.
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Grade 11 Heart Dissection Worksheet
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Carefully read each question and provide thorough answers. Refer to your knowledge of heart anatomy and physiology, as well as any prior dissection experience or preparation materials.
Study the diagram of the human heart below and answer the questions that follow.
1. Describe the general external appearance of the mammalian heart, including its approximate size and color in a preserved specimen.
2. Identify two major blood vessels that enter the right atrium of the heart and state the type of blood they carry.
1. The wall separating the two upper chambers of the heart is called the .
2. The valve located between the right atrium and the right ventricle is the valve.
3. The thickest wall in the heart belongs to the , which pumps blood to the entire body.
4. Oxygenated blood leaves the left ventricle and enters the , the largest artery in the body.
1. Which of the following statements correctly describes the function of the pulmonary artery?
It carries oxygenated blood from the lungs to the left atrium.
It carries deoxygenated blood from the right ventricle to the lungs.
It carries oxygenated blood from the left ventricle to the body.
It carries deoxygenated blood from the body to the right atrium.
2. Which structural feature prevents the atrioventricular valves from inverting when the ventricles contract?
Semilunar valves
Chordae tendineae
Papillary muscles
Both b and c
1. The left side of the heart pumps deoxygenated blood to the lungs.
True
False
2. The pericardium is a protective sac that surrounds the heart.
True
False
1. During a heart dissection, you observe that the wall of the left ventricle is significantly thicker than the wall of the right ventricle. Explain the physiological reason for this difference in thickness.
2. Hypothesize what would happen to blood flow if the chordae tendineae in the bicuspid valve were damaged.