Freudly+971 508685814hello@freudly.ai
Freudly

Circle of Willis Quiz

Circle of Willis Quiz - Free Circle of Willis Test - FreudlyTake a free circle of willis quiz to explore your circle of willis knowledge and discover your results. Quick, no sign-up needed. Start now!en
Completed in about 10 minutes, the Circle of Willis Quiz presents 16 questions on the arterial circle’s vessels, connections, variants, segments, and clinical relevance. Your result can highlight strengths and areas for review, helping you build a clearer understanding of cerebral circulation and focus your further study.
Questions: 1610 minutes
Circle of Willis Quiz: test ticket with numbers
July 22, 2026July 22, 2026Material has been updatedJuly 22, 2026Material has been published
8,186 views
741 completion
665 likes
Daniel HallPsychologist · Test reviewer
665 likes
Scale Explorer

How the Scales are Structured

Circle of Willis KnowledgeCoWK
Measures your quiz-based knowledge of Circle of Willis anatomy, variants, collateral circulation, and related clinical relevance.
example score3/16
3/16Foundations to buildexample score
0 – 6Foundations to build
7 – 12Developing knowledge
13 – 16Strong knowledge
A score of 3 falls in the Foundations to build range, suggesting you may benefit from reviewing the main vessels, connections, and basic purpose of the arterial circle.
just completed the test
DATA-BASED USER COHORTS

Who Usually Takes This Test?

Medical and PA Students
44%OF USERS
Students use it to reinforce neuroanatomy and cerebrovascular concepts for exams and clinical rotations.
Radiology and Neurology Trainees
33%OF USERS
Residents and fellows take it to sharpen recognition of Circle of Willis variants, aneurysm locations, and imaging landmarks.
Nursing and Allied Health Learners
23%OF USERS
Learners in nursing, paramedicine, and related fields use it to review stroke-relevant cerebral circulation in a quick, low-stakes format.
BASED ON AGGREGATED, ANONYMIZED DATA FROM TENS OF THOUSANDS OF FREUDLY USERS.
Benchmarking

See How You Compare

Once you complete the test, your results are compared with real-world data from people in your country.
Below is a preview of how scores are typically distributed across each scale.
Shaded area — where most people score
Dot — the average
You — your score lands on each curve after the test— your score, after the test
Circle of Willis KnowledgeCoWK
You?
Average9.3
Typical rangeTypical6.4 – 12.1
Possible0 – 16
Featured On
SAMPLE QUESTIONS

Example Questions From the Test

    • Middle cerebral artery
    • Anterior communicating artery
    • Posterior communicating artery
    • Proximal posterior cerebral artery
    • Posterior communicating arteries
    • Anterior cerebral arteries
    • Middle cerebral arteries
    • Posterior cerebral arteries
    • Within the superior sagittal sinus
    • Inside the lateral ventricles
    • In the subarachnoid space at the base of the brain
    • Between the skull and the scalp
These are 3 of the 16 real questions — the rest appear in the test. No sign-up needed to start.
WHAT THE TEST MEASURES

Circle of Willis Quiz - Description and methodology of the test

This assessment suits learners who want to check their understanding of the arterial network at the brain’s base, from vessel names and segments to communicating pathways and clinical context. The Circle of Willis Quiz offers a focused knowledge check rather than a broad neurology examination. This focused knowledge check can show which topics deserve another review before class, revision, or discussion, helping learners plan targeted Circle of Willis revision.

What This Assessment Explores

The questionnaire focuses on the arterial circle itself: vessel location, membership, communicating branches, A1/P1/P2 segments, common variants, collateral routes, aneurysm-prone junctions, and the role of CT angiography. Diagram and vessel-identification questions let learners practise identifying Circle of Willis structures and reviewing Circle of Willis anatomy, while short clinical scenarios connect names with how blood may move between major cerebral territories.

The displayed Circle of Willis Knowledge scale (0-16) is divided into these reader-facing bands:

  • Foundations to build (0-6) shows that the basic vessels, connections, and purpose need further review.
  • Developing knowledge (7-12) indicates a useful grasp with room to revisit variants, segment names, or applied circulation scenarios.
  • Strong knowledge (13-16) reflects a well-developed understanding of the anatomy and its clinical context.

Methodology and Scientific Basis

Each item presents an anatomy or applied-circulation prompt followed by four answer choices. Results are reported on the displayed 0-16 scale, while individual answer weighting is not specified. This is a knowledge assessment rather than a self-report trait measure, making this knowledge quiz useful for guided Circle of Willis study.

The questionnaire is conceptually consistent with Riggs and Rupp (1963), whose work examined how anatomical variation in the arterial circle relates to potential collateral circulation; it is not presented as an adaptation or reproduction of that study. Eftekhar and colleagues (2006) report that Circle of Willis variants differ across populations, while Tarulli and colleagues (2014) show why these variants can matter when anterior communicating artery aneurysms are treated. Together, these sources support attention to structure, variation, and clinical context without validating the online scoring system.

The online score has no established norms or standardized validation reported for this assessment, and it is an educational score rather than a medical assessment. Performance may reflect prior teaching, terminology familiarity, and recognition of simplified scenarios; use the result to target further study.

Literature:
  • Riggs HE, Rupp C. Variation in Form of Circle of Willis: The Relation of the Variations to Collateral Circulation: Anatomic Analysis. Archives of Neurology. 1963;8(1):8-14. 10.1001/archneur.1963.00460010024002
  • Eftekhar B, Dadmehr M, Ansari S, Ghodsi M, Nazparvar B, Ketabchi E. Are the distributions of variations of circle of Willis different in different populations? - Results of an anatomical study and review of literature. BMC Neurology. 2006;6:22. 10.1186/1471-2377-6-22
  • Tarulli E, Sneade M, Clarke A, Molyneux AJ, Fox AJ. Effects of Circle of Willis Anatomic Variations on Angiographic and Clinical Outcomes of Coiled Anterior Communicating Artery Aneurysms. American Journal of Neuroradiology. 2014;35(8):1551-1555. 10.3174/ajnr.A3991

Updated:

Popular tests
Emotional Creativity Inventory (ECI) Test
Emotional Creativity Inventory (ECI) Test
Emotional Creativity Inventory (ECI) Test
Emotion Regulation Questionnaire (ERQ) Test
Emotional Empathy Questionnaire (EETS) Test
Ethical Position Questionnaire (EPQ) Test
Ethnic Affiliation Questionnaire Test
Adolescent Apathy Questionnaire Test
Bass Orientation Questionnaire Test
Orientation Questionnaire Test
Orientational-Diagnostic Interests Questionnaire Test
Attitudes Toward Death Scale Test
Adolescent Self-Assertion Characteristics Test
Acute and Chronic Stress Test (ACS)
Responsibility: Past/Present Test
Adolescent Responsibility Scale Test
Responsibility Questionnaire Test
Open DISC Identifier (ODAT) Test
Do I Need Therapy Quiz
Attitudes Toward Athletes' Psychological Preparation Test
Attitude Toward One's Physical Appearance Test
Attitudes Toward Death Scale Test
Death Attitude Profile–Revised (DAP-R) Test
Attitudes Toward Adherence to Moral Norms (Student Version) Test
User Attitudes Toward AI Technologies Questionnaire Test
Peer Relationship Scale Test
Adaptability Assessment Test
Happiness Score Assessment Test
Company Business Culture Assessment Test
Self-Confidence Assessment Test
Clinical Deterioration Assessment in Eating Disorders Test
Team Assessment Test
Communication and Leadership Skills Assessment Test
Leadership Assessment Test
Achievement Motivation Assessment Test
Sport Motivation Scale (SMS) Test
Mood Assessment Test
Teacher Conservatism Assessment Test
Assessment of Positivity and Uncertainty of Ethnic Identity Test
Marlowe-Crowne Social Desirability Scale (MCSDS) Test
Entrepreneurial Aptitude Assessment Test
Employee Professional Adaptation Assessment Test
Teacher Professional Adaptation Assessment Test
Occupational Maladjustment Assessment Test
Teacher Professional Orientation Assessment Test
Assessment of Task-Oriented Rational Leadership Style Test
Self-Rated Introversion Scale Test
Personality Adaptation Status Assessment Test
Assessment of Social Influence on the Aesthetic Body Model Test
Social-Perceptual Attitude Assessment Test
Self-Development Ability Assessment Test
Self-Management Ability Assessment Test
Manipulation Vulnerability Assessment Test
Benziger Thinking Styles Assessment Test
Subjective Appearance Concern Scale Test
Assessment of Subjectivity Formation Stages Test
Comprehensive Assessment of Developmental Stages of Subjectivity Formation Test
Safety Needs Satisfaction Assessment Test
School Situations Assessment Test
Personality Emotional Orientation Assessment Test
Assessment of the Emotional and Personality Domain in Children With Development…
Team Effectiveness Assessment Test
Williams Rating Scale Test
Young Mania Rating Scale (YMRS) Test
Social Readjustment Rating Scale (SRRS) Test
Environmental Conflict Scale Test
Environmental Responsibility Scale Test
Uncertainty and Threat Experience Scale Test
Psychological Crisis Experience Scale Test
Social Exclusion Experience Scale Test
Existential Crisis Experience Scale Test
Leadership Skills Checklist Test
Perm Ethnic Self Questionnaire Test
Personal Time Management Competence Scale Test
Perth Emotion Reactivity Scale (PERS-S) Test
Perceptual Assessment of Stress Resilience Type Test
Malevolent Creativity Behavior Scale (MCBS) Test
Examination Stress Susceptibility Questionnaire Test
Positive Organizational Behavior Test
Positive Parental Feelings Scale Test
Individualism–Collectivism Scale Test
Understanding the Causes and Consequences of Emotions Test
Emotion Understanding (Critic Ratings) Test
Emotion Understanding (Situations) Test
Understanding, Emotional Attraction, and Authoritativeness Test
Rewards and Punishments Test
Activity Threshold Test
Personal Self-Change Potential Scale Test
Personal Resource Losses and Gains Questionnaire Test
Need for Dominance Scale Test
Need for Achievement Scale Test
Need for Communication Test
Why Is It Hard to Sleep? Test
Family Almost Perfect Scale (FAPS) Test
Almost Perfect Scale-Revised (APS-R) Test
Leader Preference for Different Forms of Power Test
Maternal Antenatal Attachment Scale (MAAS) Test
Home Attachment Scale Test
Father Presence Questionnaire (FPQ) Test
Brief Reasons for Living Inventory for Adolescents (BRFL-A) Test
Proactive Behavior Scale Test
Proactive Attitudes Test
Proactive Coping Inventory (PCI) Test
Developmental Age-Related Problems Test
Leadership Style Questionnaire Test
Managerial Adaptation Prognostic Questionnaire Test
Workplace Situations Questionnaire Test
Prosocial Personality Battery (PSB) Test
Protest Activity Scale
Occupational Future Time Perspective (OFTP) Test
Occupational Hardiness Questionnaire (OHQ) Test
Professional Identity Test
Professional Identity/Marginalism Scale Test
Healthy Lifestyle Profile Test
Schwartz Personality Profile (PVQ) Test
Thinking Profile Test
Relationship Feelings Profile Test
Dimensions of Identity Development Scale (DIDS) Test
Athlete Mental Reliability Scale (PNS-40) Test
Personality Mental States Inventory (PII) Test
Psychological Safety of the Educational Environment Test
Psychological Readiness to Provide Assistance Scale Test
Personality Boundary Scale Test
Marital Psychological Distance Scale Test
Psychological Observational Skills Assessment Test
Psychological Problems of Adolescents in Real and Virtual Environments Test
Adolescent Psychological Problems Questionnaire Test
Psychological Types of Love Test
Psychological Types of Relatives' Reactions to a Loved One's Illness Test
Psychological Capital Questionnaire (PCQ) Test
Classroom Group Psychological Climate Assessment Test
Consumer Psychological Profile Test
Five-Factor Narcissism Inventory–Short Form (FFNI-SF) Test
Reflection on Life Experiences Test
Life Experience Reflection Questionnaire for Primary School Children Test
Emotion Recognition Assessment Test
Emotion Recognition (Critic Ratings) Test
Personal Rehabilitation Potential Test
Emotion Regulation and Management Test
Emotion Regulation (Critic Ratings) Test
Emotion Regulation (Situations) Test
Parental Emotion Regulation Inventory (PERI-2) Test
Registry of Presumed Information Acquisition Types Test
Childhood Autism Rating Scale (CARS) Test
Personal Advertising Suggestibility Test
Reflective Assessment of Potential Individual Victimization Test
Self-Development Reflection Scale Test
Rome Orthorexia Nervosa Questionnaire (ORTO-15) Test
Bullying Risk in the Student Group Assessment Test
Deviant Behavior Risk Scale Test
Risk-Taking Behavior Assessment Test
Chemical Dependence Risk Assessment Test
Richmond Compulsive Buying Scale Test
Parental Mediation of Children's Media Activity Test
Relational-Interdependent Self-Construal Scale (RISC) Test
Women's Role Conflict During the Transition to Motherhood Test
Partner Role Expectations Questionnaire Test
Russian-Language Causality Orientations Questionnaire Test
Creativity Level Self-Assessment Test
Creative Potential Self-Report Questionnaire Test
Core Affect Self-Report Measure (EmoS-15) Test
Personality Harmony Self-Assessment Scale Test
Personality Self-Esteem Scale Test
Attitudes Toward the Natural Environment Self-Assessment Test
Professional and Teaching Motivation Self-Assessment Questionnaire Test
Psychological Adaptability Self-Assessment Test
Self-Assessment of Perseverance Test
Self-Rated Perseverance Scale Test
Self-Rated Patience Scale Test
Managerial Business Communication Style Self-Assessment Questionnaire Test
Temperament Structure Self-Assessment Questionnaire Test
Self-Assessment of Emotional States Test
Laziness Self-Regulation Scale Test
Laziness Self-Regulation Scale Test
Highly Sensitive Person Test
Female Sexual Formula Test
Male Sexual Formula Test
Family Values Questionnaire Test
Family Emotional Communication Scale Test
Is Family the Top Priority? Test
Sensory Preferences Questionnaire Test
Hex Signaletics Questionnaire Test
Symptom Checklist K-9 (SCL-K-9) Test
Symptom Checklist of Well-Being Test
Synthetic Test
Life Meaning System Test
Affective States Proneness Scale Test
Gratitude Questionnaire-6 (GQ-6) Test
Tendency to Re-Experience Emotional Experiences Test
Hyperthymia Tendency Scale Test
Conspicuous Consumption Tendency Scale Test
Dysthymia Proneness Scale Test
Executive or Creative Work Preference Scale Test
Curiosity and Exploration Inventory-II (CEI-II) Test
Propensity for Uncontrolled Excitability Test
Leadership Style Preference Questionnaire Test
Forgiveness Tendency and Attitudes Toward Forgiveness Test
Cyclothymic Tendency Scale Test
Euphoria Proneness Scale Test
Exaltation Proneness Scale Test
Comments
Leave a Comment