Definition / Explanation :
$(1)$ Calyces
$(2)$ Renal pyramids
Identify the wrong statements about human excretory system and choose the option accordingly
$I.$ Kidneys are reddish brown and bean-shaped structure
$II.$ Kidneys are situated between the last thoracic and third lumber vertebra
$III.$ Each kidney of an adult human measures $10-12\, cm$ in length, $5-7\, cm$ in width, $2-3 \,cm$ thickness, and average weight $120-170$ $gram$
Integumentary nephridia are also called
Columns of Bertini'' in the kidney of mammals are formed as the extension of
Show the structure of a renal corpuscle with the help of a diagram.