【解説時間5分】パーセンタイルとスキャモンの発育曲線

【解説時間5分】パーセンタイルとスキャモンの発育曲線

by たばえもんナース塾

Life & Natural Systems Medicine & Health MFKHuman reproduction, growth and developmentMFKHHuman growth and development
🎙 たばえもんナース塾 👥 130K 📅 January 27, 2026 ⏱ 28 min 👁 5K 📄 tutorial 🧭 2026-08-16
Available in: English (current) Français

Keywords

Scammonpercentilegrowthdevelopmentnursing

Summary

This video, presented by a nursing educator, explains Scammon’s growth curves and percentile values, essential for pediatric nursing and the Japanese national nursing exam. It begins by introducing Scammon’s curves, which categorize organ growth into four types: neural, lymphoid, genital, and general. The neural type (brain, spinal cord) develops early, reaching 80% of adult size by infancy and 90% by age 5-6. The lymphoid type (lymph nodes, thymus) overdevelops until puberty, then regresses. The genital type (ovaries, testes, prostate) grows slowly until puberty, then rapidly. The general type (height, weight, etc.) shows two growth spurts: infancy and puberty. The video then explains percentiles, using examples like the 50th percentile as the median, and the 10th and 90th percentiles as boundaries of the normal range. Values below 3% or above 97% warrant further examination. It also covers catch-up growth, where growth accelerates after an illness. The latter half of the video presents multiple national exam questions, reinforcing key points such as weight doubling at 3 months, height doubling at 4 years, brain weight reaching 90% of adult by age 5-6, and the use of the Kaup index for infants and the Rohrer index for school-age children. The video concludes with a case study on a 3-year-old boy, assessing his development as age-appropriate.

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Critical Evaluation

Value of the Information & Strength of the Argument

The video provides valuable information for nursing students preparing for the national exam, clearly explaining complex growth curves and percentile concepts. The argumentation is solid, using visual aids and repeated practice questions to reinforce learning. The explanations are accurate and align with standard pediatric growth references. The use of mnemonics and practical tips enhances understanding. However, the video lacks in-depth discussion of underlying physiological mechanisms and does not cite primary sources, which may limit its scientific depth.

86 words

Title / Content Match

The title accurately reflects the content, focusing on percentiles and Scammon's growth curves, with a 5-minute explanation segment as promised.

Quality & Reliability

7/10

The video provides a clear and accurate explanation of Scammon's growth curves and percentile concepts, with multiple national exam questions for reinforcement. The content aligns with standard pediatric growth knowledge, though it lacks citations to primary sources and is presented in a simplified manner for nursing students.

Chapters

Cited Sources

Concurring Sources

  • Scammon's growth curves - Wikipedia — Confirms the four types of growth patterns and their characteristics.
  • Percentile - Wikipedia — Provides the definition and calculation of percentiles.

Contribution & Novelties

The video offers a concise and exam-focused explanation of Scammon’s growth curves and percentiles, using practical examples and national exam questions. It stands out for its clear categorization of growth types and its emphasis on common exam pitfalls. The inclusion of catch-up growth and the case study adds clinical relevance.

Pour aller plus loin :

  • Scammon’s growth curves — Provides a detailed overview of the four growth patterns.
  • Percentile — Explains the statistical concept of percentiles.
  • Growth chart — Discusses the use of growth charts in pediatrics.

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Radar Profile

The radar profile shows high scores in information quality and reliability, with moderate scores in quantity and technical level. This indicates a focused, accurate educational video that may lack depth for advanced learners but is well-suited for its target audience.

Reliability 7/10

💬 No comments were provided for analysis.