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Anatomical Heart Amigurumi Pattern

Anatomical Heart Amigurumi Pattern
4.8β˜… Rating
6-8 Hours Time Needed
3.9K Made This
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Intermediate Level

Ideal for those with basic knitting experience, featuring slightly more advanced stitches and techniques to expand your skills.

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All-Day Adventure

Requires 8-10 hours, ideal for a full day of immersive knitting.

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Cute Companion

An adorable friend to cherish, handcrafted with love to bring comfort and joy for years to come.

About This Anatomical Heart Amigurumi Pattern

This anatomical heart pattern brings medical accuracy to the world of amigurumi! You'll create a detailed replica of the human heart complete with all major blood vessels in their anatomically correct colors. The pattern includes step-by-step instructions for the main heart chamber, aortic arch with its branches, pulmonary arteries, superior vena cava, and pulmonary veins. Each component is carefully designed to reflect real cardiac anatomy while maintaining the charm of handmade crochet.

Anatomical Heart Amigurumi Pattern crochet pattern - detailed view of completed project

Working in continuous rounds with strategic color changes, this pattern teaches valuable techniques like invisible decreases and proper stuffing methods. The finished piece serves as both an educational tool and a unique decorative item.

Why You'll Love This Anatomical Heart Amigurumi Pattern

I absolutely love how this pattern combines my passion for both crochet and science! There's something incredibly satisfying about creating something so anatomically detailed with just yarn and a hook. You'll feel proud showing off this unique piece that's both educational and adorable. The color-coding system makes it easy to identify each blood vessel, and the detailed instructions ensure your heart turns out perfectly proportioned every time.

Anatomical Heart Amigurumi Pattern step 1 - construction progress Anatomical Heart Amigurumi Pattern step 2 - assembly progress Anatomical Heart Amigurumi Pattern step 3 - details and accessories Anatomical Heart Amigurumi Pattern step 4 - final assembly and finishing

Switch Things Up

I love how versatile this anatomical heart pattern can be! You could create a whole series of organ amigurumi - imagine a crocheted brain, lungs, or kidneys to go alongside your heart. For a romantic twist, I've seen crafters make these in traditional red and pink Valentine's colors instead of the anatomical scheme. Some people add LED lights inside before closing to create a glowing heart effect that's absolutely magical. Teachers often request larger versions using chunky yarn for classroom demonstrations. You could even personalize it by embroidering a name or special date on the heart surface.

I've experimented with different textures too - using a slightly fuzzy yarn gives the heart a more realistic tissue-like appearance, while metallic threads in the embroidered vessels add an elegant touch. Consider making mini versions as keychains or larger ones as unique pillows. The pattern adapts beautifully to whatever creative vision you have in mind!

Common Mistakes & How to Fix Them

βœ— Forgetting to stuff continuously while working - stuff as you go to maintain proper heart shape βœ— Not using stitch markers at round beginnings - this leads to uneven shaping and lost count βœ— Pulling magic ring tail too early on vessel pieces - some need open holes for attachment βœ— Overstuffing the heart chambers - this makes the finished piece too firm and distorts the natural heart shape

Anatomical Heart Amigurumi Pattern

Create your very own anatomically correct crocheted heart with this detailed pattern! This unique amigurumi project features all the major blood vessels including the aorta, pulmonary arteries, and vena cava in their proper colors. Perfect for medical students, healthcare professionals, or anyone fascinated by human anatomy. The finished heart measures approximately 4-5 inches and makes an educational yet adorable display piece.

Intermediate 6-8 Hours

Materials Needed for Anatomical Heart Amigurumi Pattern

β€” Main Fabric

  • 01
    Yarn 50g/160m in red, navy, blue, orange or pink colors
  • 02
    Yarnart Jeans or Alize Cotton Gold recommended
  • 03
    Any medium weight cotton or acrylic yarn suitable

β€” Tools Required

  • 01
    Crochet hook size 1.75mm to 2.5mm depending on yarn brand
  • 02
    Polyester stuffing material
  • 03
    Scissors
  • 04
    Sewing needle
  • 05
    Stitch markers

Progress Tracker

0% Complete

β€” Heart :

Round 1 :

6 sc in MR. Pull tail tightly to close

Round 2 :

6 inc (12)

Round 3 :

(1 sc, inc) Ρ… 6 (18)

Round 4 :

(2 sc, inc) Ρ… 6 (24)

Round 5 :

(3 sc, inc) Ρ… 6 (30)

Round 6-7 :

30 sc

Round 8 :

(4 sc, inc) Ρ… 6 (36)

Round 9 :

36 sc

Round 10 :

(5 sc, inc) Ρ… 6 (42)

Round 11 :

42 sc

Round 12 :

(6 sc, inc) Ρ… 6 (48)

Round 13 :

48 sc

Round 14 :

(7 sc, inc) Ρ… 6 (54)

Round 15-18 :

54 sc (4 rounds)

Round 19 :

(7 sc, dec) Ρ… 6 (48)

Round 20-22 :

48 sc (3 rounds)

Round 23 :

(6 sc, dec) Ρ… 6 (42)

Round 24-25 :

42 sc (2 rounds)

Round 26 :

(4 sc, dec) Ρ… 7 (35)

Round 27 :

35 sc

Round 28 :

(3 sc, dec) Ρ… 7 (28)

Round 29 :

(3 sc, dec) Ρ… 5, 3sc (23)

Round 30 :

(sc, dec) Ρ… 7, 2sc (16)

Round 31 :

(1 sc, dec) repeat to end. Sew up hole with needle using front loop only. Pull tail tightly to close

β€” Aorta (Red) :

Big Vessel (1 detail: aortic arch) :

Round 1: 12 sc in MR. Don't pull tail - leave hole open

Round 2-24 :

12 sc, slip stitch. Fasten off, leaving tail for sewing

Small Vessels (3 details) :

Round 1: 6 sc in MR. Pull tail tightly to close

Round 2-4 :

6 SC, slip stitch. Fasten off, leaving tail for sewing

Assembly :

Sew 3 small details to big detail (aortic arch). Sew aortic arch to heart

β€” Pulmonary Arteries (Navy) :

Big Vessel (1 detail) :

Round 1: 10 sc in MR. Pull tail. Don't join

Round 2-16 :

10 SC, SS. Hide tail

Small Vessel (1 detail) :

Round 1: 8 sc in MR. Don't pull tail - leave hole open

Round 2-8 :

8 SC, SS

Assembly :

Sew small detail to center of big detail. Sew on heart's side, perpendicular to aorta

β€” Superior Vena Cava (Blue) :

Big Vessel (1 detail) :

Round 1: 12 sc in MR. Don't pull tail - leave hole open

Round 2-10 :

12 SC, SS. Hide tail

Small Vessel (1 detail) :

Round 1: 6 sc in MR. Pull tail tightly to close

Round 2-5 :

6 SC, SS

Assembly :

Sew small detail to big detail. Sew on opposite side of pulmonary arteries

β€” Pulmonary Veins (Orange or Pink) :

Left Pulmonary Veins (2 details) :

Round 1: 6 sc in MR. Don't pull tail - leave hole open

Round 2-4 :

6 SC, SS. Hide tail

Right Pulmonary Veins (2 details) :

Round 1: 6 sc in MR. Don't pull tail - leave hole open

Round 2-4 :

6 SC, SS. Hide tail

Assembly :

Sew 2 details to left side, 2 details to right side. Embroider arteries on heart surface

Assembly Instructions

  • Attach the aortic arch to the top of the heart, ensuring the three small branches point upward
  • Position the pulmonary arteries perpendicular to the aorta on the heart's side
  • Sew the superior vena cava on the opposite side from the pulmonary arteries
  • Attach two pulmonary veins to each side of the heart as shown in the reference photos
  • Embroider decorative arterial lines on the heart surface using contrasting thread
  • Ensure all vessels are securely attached and properly positioned for anatomical accuracy

Important Notes

  • πŸ’‘Keep stuffing the heart continuously as you work to maintain proper shape
  • πŸ’‘Use stitch markers at the beginning of each round to avoid losing your place
  • πŸ’‘Don't overstuff - the heart should be firm but not rock-hard
  • πŸ’‘Pay attention to which vessels need closed vs open magic rings for proper attachment
  • πŸ’‘Color accuracy is important for educational value - follow the specified color scheme

This anatomical heart pattern brings together the beauty of handmade crafts with the wonder of human biology! Perfect for medical students, healthcare workers, or anyone curious about anatomy. The detailed construction creates an accurate representation while maintaining that special handmade charm. Each stitch brings you closer to understanding the amazing organ that keeps us all alive. Happy crocheting! 🧢❀️

You ask,

we answer.

FAQs

What size will my finished heart be?

The completed anatomical heart measures approximately 4-5 inches (10-12 cm) in size, perfect for display or educational use.

Do I need to use the exact yarn brands mentioned?

No, any medium weight cotton or acrylic yarn will work. The key is maintaining consistent tension and using the correct colors for anatomical accuracy.

Why do some magic rings stay open while others are closed?

Vessels that attach to other pieces need open rings for sewing, while standalone pieces need closed rings for a finished look.

Can I make this heart larger or smaller?

Yes! Use a larger or smaller hook size with appropriately sized yarn to scale the pattern up or down.