The male ear:
Is approximately 68mm long and is larger than the female ear. Ear size increases with age, especially the circumference as per the equation:
Ear circumference = 88.1 + (0.51 × subject’s age).
References: 1. Tan R, Osman V, Tan G. Ear size as a predictor of chronological age. Archives of Gerontology and Geriatrics 1997; 25(2): 187-91.
To prevent microvascular anastomosis occlusion in a standard microsurgical case you should:
Make sure there is no intimal damage in either vessel. The only real issue is to have good flow with undamaged intima and no debris inside the vessel or at the anastomotic site in a standard case with no other associated blood clotting or trauma issues.
The two most likely diagnoses of a painful nodule on the rim of the ear are:
Chondrodermatitis and gouty tophus.
The following cystic tumours of the neck are not appropriately matched to their frequency of occurrence and age of occurrence:
Adult - thyroglossal duct cyst - most frequent. This is incorrect. The commonest cystic lesion of the head and neck in adults is metastatic cystic carcinoma. The others are correctly attributed.
References: 1. Gnepp DR. Diagnostic surgical pathology of the head and neck, 2nd ed. SaundersElsevier, 2009: 841.
In relation to facial musculature and facial palsy, which one is true?
The muscles are composed of four layers.
Click to expand