Oh mighty powerhouse and largest gland
Snug in the abdominal cavity
Though few thy function fully understand
Should praise thee with the utmost gravity
Three pounds thy weight, but worth thy weight in gold
Four precious lobes through portal fissure fed
Tiny lobules in hexagonal mould
Each one formed by cuboidal cells widespread
Arranged in columns round a central aisle
Converting glucose into glycogen
Form plasma proteins and essential bile,
A, D,  prothrombin and fibrinogen
De-aminates the protein that we eat
De-saturates the fat, produces heat