Do Cockroaches Have Brains? Cockroach Brain Cells And Structure


Do cockroaches have brains? This is a question that has been asked for years, and there are still no definite answers. Cockroaches are one of the most resilient creatures on the planet and can survive in just about any environment.

So, do cockroaches have brains? And if so, how do they function? This blog post will explore the anatomy of cockroaches and what we know (and don’t know) about their brain function. Read on to learn more about these amazing creatures!

Do Cockroaches Have Brains

Do Cockroaches Have Brains? And How Many Brains Do Cockroaches Have?

Cockroaches are often thought of as simple creatures, but they actually have quite complex nervous systems. They have long, segmented bodies with many legs, and their brains are located in their heads. Cockroaches have two main brain regions: the central brain and the subesophageal ganglion.

  1. The central brain is responsible for processing information from the cockroach’s senses and controlling its movement.
  2. The subesophageal ganglion is responsible for more basic functions such as heartbeat and digesting food.
  3. And they have a small cluster of nerve cells called the mushroom body. The mushroom body is important for learning and memory.

Cockroach Brain Cells And Structure

Cockroach brain cells are similar to human brain cells. They have a central nervous system that consists of a brain and ganglia, and they also have a set of antennal lobes that control their sense of smell.

However, cockroaches lack a cerebrum, which is the part of the brain responsible for higher cognition and emotions.

One thing that sets cockroach brain cells apart from human brain cells is the way they are arranged. Cockroach brains are much simpler than human brains, consisting of only about 1 million neurons compared to the 100 million found in humans.

This arrangement makes cockroaches much less intelligent than humans, but it also allows them to be more agile and react more quickly to changes in their environment.

What Does A Roach Brain Do?

A cockroach’s brain is responsible for all of the cockroach’s movement, as well as its sensory perception. The brain is also responsible for the cockroach’s ability to remember things and make decisions.

What Does A Roach’s First and Second Brain Do?

What Does A Roach’s First and Second Brain Do

Cockroaches have two brains. The first brain, located in the head, controls basic functions such as breathing and movement. The second brain, located in the abdomen, controls the digestive system.

The second brain acts as a control center for the digestive system. It sends signals to the muscles in the abdomen to move food through the intestines and regulates the acid production in the stomach for food breakdown.

Interestingly, the second brain is more complex than the first brain, having more neurons and better information processing capabilities, which is necessary for digestion’s complex process.

How Big Is A Cockroach Brain?

Cockroaches have very small brains in comparison to the size of their bodies. In fact, their brain makes up only about 0.001% of their total body weight! The majority of a cockroach’s nervous system is located in its abdomen, with the brain being located at the base of the antennae.

Where Are Cockroaches’ Brains Located?

Cockroaches’ brains are located in their heads, just like humans’ brains. However, cockroaches have a much smaller brain-to-body ratio than humans. This is because their bodies are much simpler than humans’ bodies, so they don’t need as much brain power to control them.

Do Cockroaches Have Memory?

Cockroaches are widely considered to be one of the most intelligent insects. They have been shown to be able to learn and remember complex tasks, and they can even adapt their behavior based on previous experience.

So, do cockroaches have memory? It seems likely that they do, although there is still much we don’t know about cockroach cognition. Studies on cockroach memory are ongoing, and we may soon have a better understanding of just how smart these fascinating creatures really are.

Do Cockroaches Remember Faces?

Cockroaches are often thought of as pests, and they certainly can be. But cockroaches also have a few impressive abilities, including the ability to remember faces.

In a study conducted in 2012, scientists showed a group of cockroaches pictures of different human faces.

  • The cockroaches then had to choose between the face they’d just seen and a new one.
  • The cockroaches were more likely to choose the face they’d just seen, indicating that they remembered it.

So why do cockroaches need to remember human faces? It’s likely because it helps them avoid getting eaten. If a cockroach has been caught and eaten by a human before, it will want to avoid that person in the future. Remembering faces helps them do that.

Of course, this isn’t the only reason Cockroaches might need to remember faces. It could also help them recognize other members of their species or even potential mates. Regardless of the reason, it’s clear that cockroaches are capable of remembering human faces – so beware!

Do Cockroaches Have a Heart?

So, do cockroaches have a heart? Yes, they do! Cockroaches have a simple circulatory system that includes a heart. This heart pumps blood through the body, providing oxygen and nutrients to the cells.

Video: Do Cockroaches Have Brains?


  • How intelligent is a cockroach?

    Small Roaches lack all intellect. According to tests, kids have a very poor capacity for learning, and the little they do take in, they quickly forget.

  • Do cockroaches get angry?

    When confronted with a predator, roaches often choose to escape rather than engage in combat. However, roach bites have occasionally happened, usually when people were asleep or when dogs were too weak or incapacitated to brush them off.

  • Can a cockroach survive being cut in half?

    Roaches without their heads can survive for several weeks. Cockroach development researcher Joseph Kunkel at the University of Massachusetts Amherst believes that understanding why humans cannot survive decapitation will help us understand why cockroaches—and many other insects—can.


Cockroaches are insects that have been around for millions of years. They are one of the most adaptable creatures on the planet and can live in a wide range of environments.

Despite their primitive appearance, cockroaches are actually quite sophisticated creatures. They have compound eyes that allow them to see in low light conditions, and they can run very fast. Cockroaches also have antennae that they use to sense their surroundings.

Roaches are also very intelligent pests. They have two brains in their body, which helps them to remember things and avoid enemy pests.