Topic: Food Energy and Respiration Subtopic: Introduction
How does air reach blood vessels?
Answer: Air enters in the body through two passages i.e. nasal cavity (nose) and oral cavity (mouth). Afterwards, the air passes through trachea (windpipe) and reaches the bronchi. From bronchi the air moves to bronchioles and then reaches the alveoli (air sacs). The exchange of gases takes place in alveoli as blood vessels are present there.
- What happens to excess glucose in diabetic person?
- What is constipation?
- What makes heart sound like lub?
- How can indigestion cured?
- What is filament an why is it useful?
- What is yellow pus?