Frog Anatomy and Physiology

The video tutorial explores the respiratory and circulatory systems of frogs. It begins with an overview of how frogs can absorb oxygen through their skin and the role of the glottis in air passage. The respiratory system is detailed, explaining the path of air from the glottis to the alveoli where gas exchange occurs. The circulatory system is then discussed, highlighting the differences between frog and human hearts, and the flow of oxygenated and deoxygenated blood. The tutorial emphasizes the interdependence of the respiratory and circulatory systems in frogs.

Where does the respiratory system begin in frogs?

• In the lungs

• In the nose or mouth

• In the skin

• In the esophagus

What is the function of the glottis in frogs?

• To pump blood

• To close the esophagus

• To absorb nutrients

• To allow air passage to the lungs

Which part of the frog's anatomy is responsible for preventing food from entering the respiratory tract?

• Trachea

• Epiglottis

• Glottis

• Esophagus

What are the tiny sacs in the lungs where gas exchange occurs called?

• Bronchi

• Alveoli

• Trachea

• Esophagus

What is the primary function of the respiratory system?

• To take in oxygen and expel carbon dioxide

• To digest food

• To pump blood

• To absorb nutrients

What happens to the lungs of a living frog when they are full of air?

• They harden

• They stop functioning

• They contract and expand

• They become deflated

How many chambers does a frog's heart have?

• Five

• Two

• Three

• Four

How do frogs differ from humans in terms of heart structure?

• Frogs have no atria

• Frogs have one ventricle

• Frogs have two ventricles

• Frogs have four chambers

What is the main vessel that carries oxygenated blood away from the heart?

• Bronchus

• Vein

• Capillary

• Aorta

What role do veins play in the circulatory system?

• They pump blood to the body

• They exchange gases in the lungs

• They bring deoxygenated blood back to the heart

• They carry oxygenated blood away from the heart