Anatomical Structures of Various length

There are various structure with similar length. These are favourite question of anatomy professors. Some structures of similar lengths are given below.

45 cm structures

Femur

Spinal cord

Thoracic Duct

Vas/ Ductus deferens

25 cm Structures

Descending colon

Duodenum

Oesophagus

Stomach

Ureter 

12cm Structures 

Heart (Apex to base)

Pancreas

Pharynx

Rectum 

Spleen

10 cm structures

Abdominal aorta 

Corpus Callosum 

Duodenum 3rd part 

Fallopian Tube 

Gall Bladder

Trachea 

7.5cm Structure

Bile duct 

Spermatic cord

Uterus 

Vagina (Anterior wall)

5 cm Structures

1st part of Duodenum

Ampulla of Fallopian tube                                  

Ascending Aorta 

Cysterna Chyli 

Left Bronchi

Nasal cavity 

Parotid Duct 

Pulmonary Trunk 

Seminal vesicle

Sub mandibular galnd 

Testis 

Thyroid glnnd 

4cm Structures

Common Hepatic Duct 

Cystic Duct 

Female Urethra

Inguinal Canal 

Rule of 10 : Pheochromocytoma

As previous site was dedicated to certain medical conditions that can be described with a certain number. So is this blog. This collects Number 5-10.

Rule of 10

Pheochromocytoma 

Pheochromocytoma is a tumor most commonly arising from the adrenal medulla and secrete catecholamines (Adrenaline and Noradrenaline) in the vascular system however 10% arise from extraadrenal sites such as sympathetic chain around spinal cord, aorta, ureter and bladder. Generally these are benign tumors but 10% are malignant. 90 % occurs unilaterally and 10% occur in the family. Recently 10 gene mutations have been associated with the condition to add up to its list of 10. It rarely occurs in children (10%). And has tendency to recur (10%) even after surgical excision. 10% have been identified after the patient develops Stroke following malignant Hypertension.

Rule of 10 in pheochromocytoma