Heart anatomy worksheet with diagram and labeling exercises.

Let’s go step by step through each question on the worksheet. I’ll use simple language and make sure each answer is correct before writing it down.

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1. The top chambers of the heart are called the ________.
→ The heart has 4 chambers: two on top, two on bottom. Top ones = atria (singular: atrium).
✔ Answer: atria

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2. The bottom chambers of the heart are called the ________.
→ Bottom chambers pump blood out — they’re stronger. Called ventricles.
✔ Answer: ventricles

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3. ________ circulation refers to the path blood takes from the heart to the lungs.
→ Blood goes to lungs to get oxygen → that’s pulmonary circulation. (“Pulmo” = lung)
✔ Answer: Pulmonary

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4. ________ circulation refers to the path blood takes from the heart to the body.
→ After getting oxygen in lungs, blood goes to whole body → systemic circulation. (“System” = body systems)
✔ Answer: Systemic

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5. Vessels that carry blood away from the heart: ________
→ Arteries always carry blood *away* from heart (even if it’s deoxygenated, like pulmonary artery).
✔ Answer: arteries

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6. Vessels that return blood to the heart: ________
→ Veins bring blood *back* to heart (even if it’s oxygen-rich, like pulmonary vein).
✔ Answer: veins

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7. The valve that lies between the left atrium and left ventricle: ________
→ Left side uses “mitral” or “bicuspid” valve. Both names are correct, but “mitral” is more common in worksheets.
✔ Answer: mitral (or bicuspid — either is fine, but we’ll go with mitral as listed in word bank)

Wait — looking at word bank: “mitral” is there. Also “bicuspid” isn’t in word bank? Let me check:

Word bank includes: cusps, pulmonary, systemic, semilunar, arteries, atria, mitral, vena cava, veins, aorta, ventricles, chordae tendineae, tricuspid, septum, coronary

So “mitral” is available → use that.

✔ Final for #7: mitral

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8. The valve that lies between the right atrium and right ventricle: ________
→ Right side = tricuspid valve (three flaps). Word bank has “tricuspid”.
✔ Answer: tricuspid

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9. A large vessel that returns blood to the right atrium; superior and inferior: ________
→ Superior vena cava (from upper body), inferior vena cava (from lower body) → both empty into right atrium.
✔ Answer: vena cava

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10. Muscular area that divides the left and right side of the heart: ________
→ Wall between left and right sides = septum. Prevents mixing of oxygenated/deoxygenated blood.
✔ Answer: septum

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11. Large vessel that carries blood out of the heart from the left ventricle: ________
→ Left ventricle pumps to entire body → via aorta. Biggest artery.
✔ Answer: aorta

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12. Body system that circulates the heart and blood vessels: ________
→ This is tricky wording. It says “circulates the heart and blood vessels” — actually, the cardiovascular system circulates *blood*, not the heart itself. But likely they mean the system made of heart + blood vessels → cardiovascular system. But wait — word bank doesn’t have “cardiovascular”.

Look again at word bank: ...coronary is there. Coronary refers to heart’s own blood supply. Not this.

Wait — maybe they meant: “Body system that includes the heart and blood vessels” → that’s the circulatory system. And “circulatory” IS in the word bank!

Yes! Question #12: “Body system that circulates [blood through] the heart and blood vessels” → circulatory system.

✔ Answer: circulatory

*(Note: Sometimes called cardiovascular, but since “circulatory” is in word bank, that’s what they want.)*

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13. Valve that exits the aorta, aortic: ________
→ Valve at exit of left ventricle into aorta → aortic valve. Type of semilunar valve. Word bank has “semilunar”.

Actually, question says: “Valve that exits the aorta, aortic: ________” — probably means the valve located at the beginning of the aorta → aortic valve → which is a type of semilunar valve.

But word bank has “semilunar” — and also “aortic” isn’t in word bank? Wait, no — “aortic” is part of the question stem.

Looking: “Valve that exits the aorta, aortic: ________” — awkward phrasing. Probably means: “The valve at the exit of the left ventricle into the aorta is called the ________ valve.” → That’s the aortic valve → which is a semilunar valve.

Since “semilunar” is in word bank, and “aortic” isn’t an option to fill in (it’s given in the question), they probably want “semilunar”.

But let’s read carefully: “Valve that exits the aorta, aortic: ________”

Hmm — maybe typo? Should be “valve that exits the left ventricle into the aorta”?

In standard terms: The aortic valve is a semilunar valve. So if they say “aortic: ________”, they might expect “semilunar” as the type.

Alternatively, perhaps they just want “aortic” — but “aortic” is already written in the question.

Wait — look at question 14: “Tendons that hold the valves in place: ________” → chordae tendineae.

Question 15: “Flaps of the valves are called: ________” → cusps.

So for #13: “Valve that exits the aorta, aortic: ________” — I think they mean: “The valve associated with the aorta is the ________ valve.” → But “aortic” is already stated. Maybe they want the type → semilunar.

Actually, re-reading: “Valve that exits the aorta, aortic: ________” — this is poorly worded. Likely, they mean: “The valve that blood passes through when exiting the left ventricle into the aorta is the ________ valve.” → Answer: aortic. But “aortic” is not in the blank — it’s in the question.

Perhaps it’s: “Valve that [is at the exit of] the aorta, [called] aortic: ________” — still confusing.

Alternative interpretation: Maybe “exits the aorta” is wrong — should be “enters the aorta” or “exits the heart into the aorta”.

Given context, and word bank, the best fit is semilunar, because the aortic valve is a semilunar valve, and “semilunar” is in the word bank.

Also, pulmonary valve (to lungs) is also semilunar.

So for consistency, #13: semilunar

But let’s see question 14 and 15 — they are about parts of valves.

Perhaps #13 is asking for the name of the valve → but “aortic” is given, so maybe they want “semilunar” as classification.

I think safest is to go with semilunar.

Wait — another thought: In some curricula, they teach: “The aortic valve is a semilunar valve.” So if the question says “aortic: ________”, they may want “semilunar”.

Yes.

✔ Answer: semilunar

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14. Tendons that hold the valves in place: ________
→ Chordae tendineae — string-like tendons attached to AV valves (tricuspid and mitral) to prevent flipping. Word bank has it.
✔ Answer: chordae tendineae

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15. Flaps of the valves are called: ________
→ The actual leaflets/flaps inside valves are called cusps. E.g., tricuspid has 3 cusps, bicuspid/mitral has 2. Word bank has “cusps”.
✔ Answer: cusps

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Now, double-check all answers against word bank to ensure we used only words provided:

Word bank:
cusps ✔ (#15)
pulmonary ✔ (#3)
systemic ✔ (#4)
semilunar ✔ (#13)
arteries ✔ (#5)
atria ✔ (#1)
mitral ✔ (#7)
vena cava ✔ (#9)
veins ✔ (#6)
aorta ✔ (#11)
ventricles ✔ (#2)
chordae tendineae ✔ (#14)
tricuspid ✔ (#8)
septum ✔ (#10)
coronary ← not used?
circulatory ✔ (#12)

“Coronary” wasn’t used — that’s okay, sometimes extra words are given.

All answers match word bank except possibly #13 — but “semilunar” is correct for aortic valve type.

Final list:

1. atria
2. ventricles
3. Pulmonary
4. Systemic
5. arteries
6. veins
7. mitral
8. tricuspid
9. vena cava
10. septum
11. aorta
12. circulatory
13. semilunar
14. chordae tendineae
15. cusps

Perfect.

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Final Answer:
1. atria
2. ventricles
3. Pulmonary
4. Systemic
5. arteries
6. veins
7. mitral
8. tricuspid
9. vena cava
10. septum
11. aorta
12. circulatory
13. semilunar
14. chordae tendineae
15. cusps