Skip to content
Epomedicine

Mnemonics, Simplified Concepts & Thoughts

Epomedicine

Mnemonics, Simplified Concepts & Thoughts

fetal skull transverse

Fetal Skull Dimensions : Mnemonic

Epomedicine, Jul 27, 2018

Anteroposterior Diameters

Mnemonic:

  1. Larger the alphabets, larger the diameter (V>F>B)
  2. Diameters with “sub” prefix are smaller than counterpart without it.

fetal skull AP

  1. mento-Vertical: 14 cm
    • SUB-mento-Vertical: 11.5 cm
  2. occipito-Frontal: 11.5 cm
    • SUB-occipito-Frontal: 10.5 cm
  3. sub-occipito-Bregmatic: 9.5 cm
  4. sub-mento-Bregmatic: 9.5 cm

Transverse Diameters

fetal skull transverse

Mnemonic: MTP (Medical Termination of Pregnancy) in increasing order.

  1. bi-Mastoid: 7.5 cm
  2. bi-Temporal: 8 cm
  3. bi-Parietal: 9.5 cm
33 shares
  • Facebook18
  • Twitter
PGMEE, MRCS, USMLE, MBBS, MD/MS AnatomyObGynReproductive system

Post navigation

Previous post
Next post

Related Posts

PGMEE, MRCS, USMLE, MBBS, MD/MS

Basics of voiding cystourethrogram (VCUG)

Jan 12, 2024Jan 12, 2024

The above picture shows a VCUG scan which is a commonly performed test in urology for diagnosing various conditions related to urethra, bladder as well as assessing upper tracts. Diseases that can be diagnosed using VCUG includes: So, it is always better to have an idea about interpreting the scan as…

Read More
PGMEE, MRCS, USMLE, MBBS, MD/MS

Spinal Tumors Localization : Mnemonics

Apr 9, 2025Apr 9, 2025

Intradural Intramedullary Spinal Tumors Mnemonic: I HEAL Intradural Extramedullary Spinal Tumors Mnemonic: MNM Extradural Spinal Tumors Lesions outside the thecal sac are categorized as extradural lesions. Remember that everything that isn’t in the thecal sac is extradural, including discs, bones, nerves, and blood vessels.

Read More
PGMEE, MRCS, USMLE, MBBS, MD/MS

Approach to a Child with Short Stature

Jan 15, 2022Jan 15, 2022

Definition of Short Stature Short stature refers to the height below 3rd Centile or 2 Standard Deviations (-2 SD) or more below the mean height for chronological age and gender for the standard population. When height is >-3 SD it’s most likely pathological. Assessment of Short stature 1. Accurate height…

Read More

Comments (6)

  1. Tajmina parbin says:
    Sep 7, 2019 at 9:10 am

    Very useful information

    Reply
  2. samikshya lama says:
    Jan 21, 2020 at 3:52 pm

    why is submentovertical diameter less than mentovertical

    Reply
    1. Taha says:
      Nov 27, 2020 at 3:30 pm

      Because it is measured from a closer point to the back of the head.

      Reply
    2. Dr Ankit says:
      Mar 20, 2021 at 2:11 am

      Bcz it is made by God n we can not change it

      Reply
    3. lakshmi says:
      Jun 11, 2023 at 11:05 pm

      submento is from the side of the chin to vertex.so that is why it is smaller than mento vertical.

      Reply
  3. Dushyant says:
    Nov 24, 2021 at 7:28 am

    Pic is informative, could have been more clear graphically

    Reply

Leave a Reply to samikshya lama Cancel reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Pre-clinical (Basic Sciences)

Anatomy

Biochemistry

Community medicine (PSM)

Embryology

Microbiology

Pathology

Pharmacology

Physiology

Clinical Sciences

Anesthesia

Dermatology

Emergency medicine

Forensic

Internal medicine

Gynecology & Obstetrics

Oncology

Ophthalmology

Orthopedics

Otorhinolaryngology (ENT)

Pediatrics

Psychiatry

Radiology

Surgery

RSS Ask Epomedicine

  • What to study for Clinical examination in Orthopedics?
  • What is the mechanism of AVNRT?

Epomedicine weekly

  • About Epomedicine
  • Contact Us
  • Author Guidelines
  • Submit Article
  • Editorial Board
  • USMLE
  • MRCS
  • Thesis
©2026 Epomedicine | WordPress Theme by SuperbThemes