'This air tube in the neck is held open by 16 to 20 C-shaped rings of cartilage'
Trachea
SCIENCE & NATURE: This air tube in the neck is held open by 16 to 20 C-shaped rings of cartilage
This air tube in the neck is held open by 16 to 20 C-shaped rings of cartilage
This air tube in the neck is held open by 16 to 20 C-shaped rings of cartilage
SCIENCE & NATURE
Trachea
SCIENCE & NATURE