respiratory system
Definition of respiratory system
The major passages and structures of the upper respiratory tract include the nose or nostrils, nasal cavity, mouth, throat ,
เว็บไซต์ respiratory system The major passages and structures of the upper respiratory tract include the nose or nostrils, nasal cavity, mouth, throat , excretory system Respiratory system Among quadrupeds, the respiratory system generally includes tubes, such as the bronchi, used to carry air to the lungs,
respiratory system The lower respiratory tract consists of the trachea , bronchial tubes, and lungs The bronchial tubes carry air into the lungs and branch into smaller Human Respiratory System · We take in oxygen from the atmosphere with our nostrils · The pharynx opens into the trachea through the larynx · Each bronchus Basic types of respiratory structures Respiratory structures are tailored to the need for oxygen Minute life-forms, such as protozoans, exchange oxygen and
ไม่สามารถโหลดการรับสินค้าได้ ความพร้อมใช้งาน
