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Knowledge of anatomy is essential to understand human biology and medicine. Anatomists and health care professionals use standard terminology to describe the human body with more precision and no ambiguity. Anatomical terms have mostly Greek and Latin-derived roots. Because these languages are rarely used in conversation, the meaning of words remains the same. Each term is made up of a root in between the prefixes and suffixes. The root of a term often refers to an organ, tissue, or condition,...
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In human anatomy, anastomosis refers to a connection or opening between two things, particularly between blood vessels or other tubular structures. The term is derived from the Greek term 'anastomosis,' which means 'outlet' or 'opening.' This natural network of connections plays a critical role in the survival and functionality of the human body.
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Anatomical variations and evolution: re-evaluating their importance for surgeons.

Arthur Saniotis1,2, Maciej Henneberg2,3

  • 1Department of Medical Laboratory Science, College of Science, Knowledge University, Kurdistan Region, Iraq.

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Human anatomical variations are increasing due to relaxed natural selection, indicating ongoing microevolution. Understanding evolutionary influences on human morphology is crucial for anatomists and surgeons.

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Area of Science:

  • Evolutionary biology
  • Human anatomy
  • Biological anthropology

Background:

  • Anatomical variations in humans have been studied for decades.
  • Some variations pose diagnostic challenges or indicate adverse symptoms.
  • Recent arguments suggest anatomical changes reflect ongoing microevolution.

Purpose of the Study:

  • To highlight the link between reduced differential mortality and increased heritable trait variation.
  • To emphasize the role of relaxed natural selection in driving anatomical changes.
  • To advocate for enhanced understanding of evolutionary influences on human morphology.

Main Methods:

  • Review of anatomical and anthropological literature.
  • Analysis of historical trends in human mortality and natural selection.
  • Synthesis of evidence for microevolutionary changes in human populations.

Main Results:

  • Reduced differential mortality since the mid-19th century has led to increased variation.
  • This variation manifests in musculoskeletal and vascular anatomy, and congenital disorders like spina bifida occulta.
  • Anatomical changes demonstrate ongoing microevolution in human lineages.

Conclusions:

  • Surgeons and anatomists need a deeper understanding of evolution's impact on human morphology.
  • Knowledge of anatomical variations is vital for minimizing surgical complications.
  • Current understanding of evolutionary influences on human anatomy requires significant improvement.