Mnemonics Anatomy Study with Mnemonics

All are about 45 cms or 18 inches:

1. Length of Vas deferens or ductus deferens
2. Length of thoracic duct
3. Length of Spinal cord
4. Femur (for 6 feet person)
5. Length of transverse colon
6. Distance from the incisor teeth to the cardiac end of the stomach
7. Umbilical cord at birth
8. Length of sartorius muscle

 

All are about 25 cms or 10 inches:

1. Length of Esophagus
2. Length of Ureter
3. Length of Duodenum
4. Length of Descending colon

 

All are about 25 cms or 10 inches:

1. Length of Esophagus
2. Length of Ureter
3. Length of Duodenum
4. Length of Descending colon

 

All are about 4 cms or 1.5 inches:

1. Length of Auditory tube
2. Length of Anal canal
3. Length of Female urethra
4. Length of Cystic duct
5. Length of Common hepatic duct
6. Length of External acoustic/auditory meatus when measured from tragus
7. Length of Optic nerve
8. Length of Ovary
9. Length of Inguinal canal
10. Length of Femoral sheath
11. Thickness of Kidney
12. Width of Pons

 

All are about 10 cms or 4 inches:

1. Length of Trachea
2. Length of Fallopian or Uterine tube
3. Length of Common bile duct
4. Length of 3rd part of Duodenum (Transverse Duodenum)
5. Length of Posterior wall of Vagina
6. Anteroposterior measurement of Inlet of Pelvis
7. Transverse measurement of Outlet of Pelvis

 

All are about 1 inch or 2.5 cm

1. Length of Medulla
2. Length of Midbrain
3. Length of Pons
4. Length of 4th part of Duodenum (Ascending Duodenum)
5. Length of Ducts of Bartholin’s gland (Greater vestibular glands)
6. Diameter of Trachea
7. Diameter of Right main bronchus
8. Distance between Ureteric orifice in Empty bladder

 

Structures whose width is greater than length:​

​

1. Pons varioli​
2. Cecum​
3. Prostate​

 

Descent of Testis:

1. 3rd month: Reaches Iliac fossa
2. 6th month: Rests at Deep Inguinal ring
3. 7th month: Traverses Inguinal canal
4. 8th month: Reaches Superficial Inguinal ring
5. 9th month: Descneds into Scrotum

 

Rule of 2s for Meckel’s Diverticulum:

Meckel’s Diverticulum is a congenital outpouching of the ileum that is a normal variant and is the remnant of omphalomesenteric (vitellointestinal) duct. It is a true diverticulum, that consists of all the layers of the intestinal wall (mucosa, submucosa and muscularis).

1. Occurs in 2% population
2. 2 times more common in male
3. 2 feet proximal to ileocecal valve
4. 2 inches in length
5. 2 years of age is typical for onset of symptoms
6. 2 % are symptomatic
7. 2 types of mucosa possible (Small intestine and Gastric)

 

Rule of 2s: 2nd week of Development (Embryology)

1. Trophoblast differentiates into 2 layers: Cytotrophoblast and Sycytiotrophoblast
2. Embryoblast forms 2 layers: Epiblast and Hypoblast
3. Extraembryonic mesoderm splits in 2 layers: Somatopleure and Splanchnopleure
4. 2 cavities are formed: Amniotic cavity and Yolk sac cavity