Trachea Diffusion of oxygen and carbon dioxide takes place across the walls of the smallest tubes, called tracheoles, which penetrate tissues and even indent individual cells. Gas may be conducted through the respiratory system by means of active ventilation or passive diffusion. Unlike vertebrates, insects do not generally carry oxygen in their haemolymph. This is one of the factors that may limit their size. A tracheal tube may contain ridge-like circumferential rings of taenidia in various geometries such as loops or helices. Taenidia provide strength and flexibility to the trachea. In the head, thorax, or abdomen, tracheae may also be connected
My Name Is My Name something more artful and unstable. "My Name Is My Name" is a remarkable and vital solo debut." Jesse Cataldo, writing for "Slant Magazine", said, "Yet despite its pedigree, the album puts too much overall emphasis on guest spots and not enough on establishing a distinctive identity for the rapper. Full of retrograde lyrical conceits, seemingly at odds with its futuristic backdrops, "My Name Is My Name" is a reminder that Pusha T hasn't changed, and his stubborn reliance on maintaining his brand is probably not the wisest strategy in today's shifting hip-hop climate." Jon Hadusek of Consequence of Sound stated,