Similarities of Frogs & Humans

Similarities of Frogs & Humans
••• ABDESIGN/iStock/GettyImages

Despite belonging to two different classes within the animal kingdom, frogs (Class: Amphibia) and humans (Class: Mammalia) share similar anatomies and systems. Humans can't live out their childhoods under water like frogs can but our basic needs and bodily functions are comparable.

Body Structure Similarities

Although each may look quite different, frogs and humans have skin, bones, muscles and organs. The head of both frogs and humans contains the brain, mouth, eyes, ears and nose. Frogs possess teeth and a tongue, like humans, but their teeth are weak and function to hold prey rather than chew it. The chest and abdomen of frogs and humans house the other major organs, while the limbs of both enable locomotion.

Common Organ Functions

Frogs and humans share the same basic organs. Both have lungs, kidneys, a stomach, a heart, a brain, a liver, a spleen, a small intestine and a large intestine, a pancreas, a gall bladder, a urinary bladder and a ureter. Males and females of each species have testes and ovaries respectively. On the whole, their organ structure is similar, but frogs have considerably less complex anatomies. They do not have ribs or a diaphragm.

Vertebrate Nervous Systems

Frogs and humans have similar systems, including nervous, circulatory, digestive and respiratory. Both are classified as vertebrates, with a spine and nerves that spread across the body. Both frogs and humans have very developed senses of hearing, managed by the nervous system. However, frogs can only detect high-pitched sounds with their ears; they detect low-pitched sounds through their skin. Both frogs and humans also have well-developed senses of sight and smell.

Circulatory, Digestive and Respiratory Systems

Both creatures possess a circulatory system, which operates as the heart pumps blood throughout the body. However, frogs have a three-chambered heart, with two atria and one ventricle compared to the human's two atria and two ventricles. Additionally, frogs and humans have similar digestive and respiratory systems. Although frogs, as adults, inhale and exhale through the mouth only (while humans inhale and exhale through the mouth and nose), the internal organs involved in the respiratory process function in much the same way.

Related Articles

Comparison Between the Skeletons of Frogs & Humans
How to Compare a Frog and a Human Respiratory System
What Are the Differences & Similarities Between Mammals...
Animals That Breathe Through the Skin
The Skeletal System of Mammals
Differences Between a Cat, Dog, & Human Skeleton
The Difference Between Flatworms and Roundworms
Characteristics That Grasshoppers & Crayfish Share
Similarities & Differences Between Frogs & Toads
Role of the Lungs
What Is on the Left Side of Your Body in Human Anatomy?
How Are Reptiles & Amphibians Alike?
Earthworm Phylum Characteristics
How to Compare the Anatomy of a Beef Heart & a Human...
How Long Can a Dolphin Hold its Breath?
The Limbic System Structure That Regulates Hunger Is...
How Many Hearts Does an Earthworm Have?
How to Number Human Ribs
The Difference Between Dolphin Fish & Dolphin Mammal
Why Do the Lungs Feel Spongy?

Dont Go!

We Have More Great Sciencing Articles!