The Structure and Function of the Brain

This set of flashcards covers key concepts regarding the structure and function of the human brain, including its various lobes and their specific roles.

What is the average weight of the human brain?

About 1.4 ext{ kg}

What are the two halves of the brain called?

Hemispheres (left hemisphere and right hemisphere)

What is the upper part of the brain known as?

Cerebrum

What is the outer part of the cerebrum called?

Cortex

What are the bumps on the cortex known as?

Gyri

What are the creases on the cortex called?

Sulci

How do the brains of humans differ from those of animals?

Humans have a larger surface area with folds, allowing for more nerve cells and behavioral functions.

What structure communicates between the brain and the body?

Spinal cord

What role does the frontal lobe play?

Decision-making and impulse control, problem-solving skills, concentration, and attention.

What is located toward the back of the frontal lobe?

Motor cortex

What is the primary function of the motor cortex?

Controls voluntary movements of the human body.

What functions is the temporal lobe associated with?

Hearing, understanding sounds, speech, and memory.

What is the main role of the parietal lobe?

Understanding perception and recognizing faces.

What is responsible for our sense of touch?

Somatosensory cortex, located in the parietal lobe.

What does the occipital lobe do?

Processes visual information.

What is another name for the occipital lobe?

Visual cortex

What role does the cerebellum play?

Movement, coordination, and balance.

What type of information does the cerebellum use to coordinate behavior?

Information from the sensory centers, spinal cord, and other parts of the brain.

What does the cerebellum help you do when you see an obstacle while running?

Change direction.

What is the primary function of the central sulcus?

Separates the frontal lobe from the parietal lobe.

Which lobe controls hearing and understanding sounds?

Temporal lobe

What area of the brain is responsible for voluntary movement?

Motor cortex in the frontal lobe.

Where is the somatosensory cortex located?

At the front of the parietal lobe, behind the central sulcus.

Which part of the brain is involved in processing visual information?

Occipital lobe

What function does the cerebellum integrate?

Movement and coordination.

What are the gyri and sulci important for?

Increasing the surface area of the brain.

Which lobe helps you recognize faces?

Parietal lobe

What is the role of the temporal lobe in memory?

It contains areas controlling memory.

What does the brainstem do?

(This was not explicitly mentioned but can be inferred as a communication structure; include a note for additional context in study.)

What is the main area behind the central sulcus?

Parietal lobe, responsible for touch and perception.

How do folds in the brain contribute to its function?

They allow for more nerve cells and control of more functions.

What are some behaviors the cerebellum helps coordinate?

Balance and motor skills.

How is the structure of a human brain described?

Very complex and carefully structured to control many functions.

What is the relationship between the brain and the spinal cord?

Information passes between them for communication.

Why is the central sulcus important?

It separates important lobes of the brain.

What is significant about the weight of the human brain in context to its size?

It is heavy for the size, indicating its complexity.