Multiple Choice
Which structures in plant leaves are responsible for allowing gas exchange with the environment?
21
views
40. Circulatory System
Gas Exchange
Struggling with General Biology?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Which of the following correctly describes the path of air as it travels from the external environment to the alveoli in human lungs?
A
Nasal cavity → Pharynx → Larynx → Trachea → Bronchi → Bronchioles → Alveoli
B
Pharynx → Nasal cavity → Larynx → Trachea → Bronchioles → Bronchi → Alveoli
C
Trachea → Larynx → Nasal cavity → Bronchi → Bronchioles → Alveoli
D
Nasal cavity → Larynx → Pharynx → Trachea → Bronchi → Alveoli → Bronchioles
Verified step by step guidance1
Step 1: Begin by understanding the anatomy of the human respiratory system. Air enters the body through the nasal cavity, which filters, warms, and moistens the air.
Step 2: From the nasal cavity, air moves to the pharynx, a shared passageway for both air and food. The pharynx directs air toward the larynx.
Step 3: The larynx, also known as the voice box, ensures that air is directed into the trachea and prevents food from entering the respiratory tract using the epiglottis.
Step 4: Air then travels down the trachea, a tube reinforced with cartilage rings, which splits into two bronchi leading to each lung.
Step 5: The bronchi branch into smaller bronchioles within the lungs, and these bronchioles terminate in alveoli, tiny air sacs where gas exchange occurs between oxygen and carbon dioxide.
5:55mWatch next
Master Gas Exchange and Breathing with a bite sized video explanation from Jason
Start learningRelated Videos
Related Practice
