What do the nine pictures show?

Three diagrams in three styles: a labeled cross-section of the heart, the same section with blank labels, and a blood-flow diagram with arrows.

How does the blood-flow diagram show oxygen?

Solid arrows mark blood without oxygen entering the heart, and outlined arrows mark oxygen-rich blood leaving through the aorta.

What is the difference between the three styles?

The textbook style is a fine black line drawing with no fill, the color-coded style has a soft pastel fill in each part, and the pen sketch has varied line weight and light hatching.

Can I ask for a different heart, such as a fish heart?

Yes. A direction such as fish heart is a request the picture will try to follow, not a guaranteed result.

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/human-heart-diagrams · classroom

Human heart diagram: labeled heart, blank labels, blood flow

Human heart diagrams — a cross-section of the human heart with the right and left atria, the right and left ventricles, the aorta, the vena cava, the pulmonary artery and veins and the four valves, each named on a leader line, a clean textbook line diagram, fine uniform black ink outline, no shading, no fills

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every sample — three subjects, three styles ↓

Reading 1Labeled heart

Reading 2Blank labels

Reading 3Blood flow

A human heart diagram for biology exams and for explaining circulation. The labeled cross-section names the atria, ventricles, aorta, vena cava, pulmonary vessels and the four valves. The second picture has empty label lines. The third traces blood flow with arrows for blood without oxygen and blood rich in oxygen. Type a direction, such as fish heart, and the picture will try it.

a biology exam revision sheet
a nursing or first-aid teaching aid
a worksheet on blood flow
a classroom poster on circulation

Frequently asked questions

What do the nine pictures show?: Three diagrams in three styles: a labeled cross-section of the heart, the same section with blank labels, and a blood-flow diagram with arrows.
How does the blood-flow diagram show oxygen?: Solid arrows mark blood without oxygen entering the heart, and outlined arrows mark oxygen-rich blood leaving through the aorta.
What is the difference between the three styles?: The textbook style is a fine black line drawing with no fill, the color-coded style has a soft pastel fill in each part, and the pen sketch has varied line weight and light hatching.
Can I ask for a different heart, such as a fish heart?: Yes. A direction such as fish heart is a request the picture will try to follow, not a guaranteed result.

About toile

This page is a showcase and a starting point: nine samples already rendered, three readings of the pack crossed with three styles, each shown at the size and ratio it was made for. Take any of them further on the wall with a few words, or ask for all nine again under your own direction; a sign-in keeps what you make, and it is free while Toile is new. The recipe behind each sample — the subject, the style, the palette, the framing — travels with the image rather than staying private to the render: it is in the alt text of every sample and in the page's own structured data, so a search engine reads the same handles a person would.