Which plane divides the body into an anterior and posterior (ventral and dorsal) portion?

Appeared in: RIMS Nursing Officer - 2022

Explanation

The Coronal plane, also known as the frontal plane, is a vertical plane that divides the body into anterior (front) and posterior (back) sections.
The terms 'ventral' and 'dorsal' are synonymous with 'anterior' and 'posterior', respectively, in human anatomy.
This plane runs vertically from side to side, at a right angle to the median plane.

Option A: The Sagittal plane divides the body into left and right portions, not anterior and posterior.
Option B: The Median (or midsagittal) plane is a specific sagittal plane that divides the body into equal left and right halves. It does not create anterior and posterior sections.
Option C: The Transverse plane, also called the horizontal plane, divides the body into superior (upper) and inferior (lower) portions.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Anatomical Body Planes as background academic context rather than a clinical decision trigger.
A thorough understanding of anatomical planes is essential for nurses to accurately describe the location of wounds, pain, or physical findings in patient charts.
These terms are the standard language used in radiology reports. A nurse must understand what a 'coronal view' on an MRI or a 'transverse slice' on a CT scan refers to in order to comprehend the findings.
What if? If a patient has a wound described as being on the 'anterior thigh, just superior to the patella', a nurse must use their knowledge of anatomical terms and planes to locate it on the front of the thigh, just above the kneecap.

How to Approach the Question

First, identify the key terms in the question: 'divides the body', 'anterior', and 'posterior'.
Recall the definitions of the four main anatomical planes.
The Coronal (or Frontal) plane is defined as the plane that divides the body into anterior (front) and posterior (back) parts.
The Sagittal plane divides the body into left and right parts.
The Transverse plane divides the body into superior (upper) and inferior (lower) parts.
Based on these definitions, match the question's requirement (anterior/posterior division) with the correct plane, which is the Coronal plane.

Concept Tested & Keywords

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E6 Physiology Ganong 27e Vol 2 Part 2 p. 109-111

E6 Anatomy Applied Ashalatha 4e p. 45-47

E6 Anatomy Grays 43e Vol 1 Part 1 p. 21-23

Practise the full RIMS Nursing Officer - 2022

Attempt every question from this paper in a timed mock, then review the full solution for each one.