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WorksheetsCh. 2 Lesson 2
Total questions: 8
Worksheet time: 4mins
Hollow, muscular organ located in the center of the chest; pumps blood into the circulatory system
Heart
Lung
Kidneys
Vessels
Sheet of muscle beneath the lungs and above the abdomen that contracts and relaxes to help the chest expand so a person can inhale or exhale
Lungs
Bronchi
Diaphragm
Throat
Two air passages, each of which connects the trachea to a lung
Diaphragm
Veins
Lungs
Bronchi
The exchange of oxygen and carbon dioxide between the body and the air around it is called respiration.
True
False
Blood vessels that carry oxygen-rich blood.
Plasma
Veins
Arteries
Capillaries
Small arteries that deliver oxygen and nutrients to cells and pick up cells' waste.
Veins
Plasma
Arteries
Capillaries
Liquid part of blood.
Plasma
Veins
Arteries
Capillaries
Blood vessels that carry oxygen-poor blood
Capillaries
Veins
Arteries
Plasma
