Contains

• nephron

  Any of the small tubules that are the excretory units of the vertebrate kidney.

• microtubule

  A microscopically small tubule.

• seminiferous tubule

  Any of the numerous long convoluted tubules in the testis which are the sites...

• uveoscleral pathway

  A tubule that drains excess aqueous humor.

• vasa efferentia

  The several highly convoluted tubules that lead from the rete testis to the vas...

• trachea

  One of the tubules forming the respiratory system of most insects and many arachnids.