"Presents an overview of the respiratory system, including key parts of the system and their jobs, how to keep the system healthy, and fun facts"--
Publisher's description.
"Presents an overview of the respiratory system, including key parts of the system and their jobs, how to keep the system healthy, and fun facts"--
Publisher's description.
Content Note
Samantha sings! -- What is the respiratory system? -- What is the voice box? -- Why do you breathe? -- What does the blood do? -- Some breathing problems.