Foundations of the Circulatory System — PickAClass
⏱ 2h 30m 📚 25 lessons 🎧 Audio version

Foundations of the Circulatory System

Explore the biology of the heart, blood, and circulation in both humans and the animal kingdom through clear, text-based lessons.

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About this course

The circulatory system is the vital transport network that keeps complex organisms alive. This course provides a clear, written guide to its intricate workings, helping you build a solid understanding of how life is sustained at a cellular level. Upon completing this course, you will have a foundational knowledge of cardiovascular biology. You'll be able to explain the journey of blood through the body, describe the roles of key organs and tissues, and compare the different strategies that have evolved for circulation in the natural world. What you'll learn: * Understand the core functions of the circulatory system, including nutrient delivery and waste removal. * Learn the detailed anatomy of the human heart and the mechanics of the cardiac cycle. * Distinguish between arteries, veins, and capillaries and their specific roles in blood transport. * Explore the composition of blood, including red cells, white cells, and platelets. * Compare and contrast the open and closed circulatory systems found in different animal species. * Grasp the fundamental principles of blood pressure and systemic circulation. The course starts with essential terminology and the basic structure of circulatory systems. From there, you will read through detailed modules on the heart, blood vessels, and blood composition before exploring the diversity of circulation in the animal kingdom. This course is designed for absolute beginners. No prior background in biology is required to get started. Begin your journey into the fascinating world of cardiovascular biology today.

What you'll get

  • 📜 Certificate of completion
    Add it to your LinkedIn profile
  • 💬 Personal AI tutor
    Stuck on a lesson? Ask your built-in tutor anything, any time.
  • 🎧 Audio version included
    Learn on the go — no screen needed
  • ♾️ Lifetime access
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  • 📱 Phone or computer
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  • 💸 14-day refund
    No questions asked
  • Short & focused
    2h 30m of practical content

Certificate of completion

Every course you complete on PickAClass issues a credential like this — original, with its own code, verifiable by URL, and detailed about what was actually demonstrated.

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PickAClass
Skills profile · verifiable
Document
Certificate of Mastery
This certifies that
Name Surname
has successfully demonstrated mastery of
Foundations of the Circulatory System
Skills demonstrated
Behavioral pattern analysis
Foundational
1.2 hrs
Decision-architecture frameworks
Proficient
1.4 hrs
A/B test design
Proficient
1.7 hrs
Behavioral copywriting
Advanced
1.9 hrs
P
PickAClass — Name Surname
Foundations of the Circulatory System
Page 2 of 2
Performance detail
Coursework summary
Lessons completed 14 / 14
Practice questions 26 / 28
Assignments submitted 4 (avg 4.5 / 5)
Capstone project Reviewed — 4.6 / 5
Total practice 6.2 hrs
Performance benchmark
Cohort rank Top 12% of 1,625
Time to completion 11 days (median: 22)
Mastery score 91 / 100
Practice-question score 94%
Skill verification Verified Skill Path
Verify this credential
pickaclass.com/certificates/PCC-2026-X4F7-AP19
Issued under the academic standards of PickAClass. Skill levels reflect assessed performance against the course's competency rubric. This is an original credential of this platform.

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Frequently asked

What do I need to take this course? +

Just a phone or computer with internet. No installs, no special hardware.

How do I pay? +

By card via Stripe. We don’t store card details — Stripe handles them securely.

Can I get a refund? +

Yes — full refund within 14 days, no questions asked.

How long will I have access? +

Forever. Once you purchase, the course is yours to revisit anytime.

Will I get a certificate? +

Yes. On completion you'll receive a certificate you can add to your LinkedIn profile.

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