Questions With Answers  >  Science Trivia  >  Human Brain Trivia Quiz Questions and Answers
 
 

Human Brain Trivia Quiz Questions and Answers

Trivia quiz questions with answers about the human brain.

 

Human Brain Trivia Quiz Questions and Answers

The human brain has the same general structure as the brains of other mammals, but has a more developed "what" than any other?
A: cerebral cortex.

The human cerebral cortex is a thick layer of neural tissue that covers what?
A: Most of the brain.

This layer is folded in a way that increases the amount of surface that can what?
A: Fit into the volume available.

The pattern of folds is similar across individuals, although there are what?
A: Many small variations.

The cortex is divided into four what?
A:  "lobes".

What are the names of the lobes?
A: They are called the frontal lobe, parietal lobe, temporal lobe, and occipital lobe.

Within each lobe are numerous cortical areas, each associated with  what?
A: A particular function, including vision, motor control, and language.

 

The left and right sides of the cortex are broadly similar in shape, and most cortical areas are what?
A: Replicated on both sides.

Some areas, though, show strong lateralization, particularly areas that are involved in what?
A: Language.

In most people, the left hemisphere is "dominant" for what?
A: Language, with the right hemisphere playing only a minor role.

What are the most common forms of physical damage to the brain?
A: Closed head injuries such as a blow to the head, a stroke, or poisoning by a variety of chemicals that can act as neurotoxins.

Infection of the brain, though serious, is rare due to what?
A: The biological barriers that protect it.

The human brain is also susceptible to degenerative disorders, such as what?
A:  Parkinson's disease, multiple sclerosis, and Alzheimer's disease.

A number of psychiatric conditions, such as schizophrenia and depression, are thought to be associated with what?
A: Brain dysfunctions, although the nature of such brain anomalies is not well understood.

 

The brain can also be the site of brain tumors and these neoplasms can be what?
A: Benign or malignant.

On average, how much does an adult human brain weigh?
A: About 1.5 kg (3.3 lb).

The average brain has a volume of around 1130 cubic centimetres (cm3) in women and  how much in men?
A: About 1260 cm3 in men.

Neurological differences between the sexes have not been shown to correlate in any simple way with what?
A:  IQ or other measures of cognitive performance.

The human brain is composed of what three things?
A: Neurons, glial cells, and blood vessels.

The number of neurons, according to array tomography, has been shown to be about how many?
A:  86 billion.

The cerebral hemispheres (the cerebrum) form the what?
A: The largest part of the human brain.

 

They are covered with a cortical layer which has what type of topography?
A: Convoluted.

What lies underneath the cerebrum?
A: The brainstem, resembling a stalk on which the cerebrum is attached.

At the rear of the brain, beneath the cerebrum and behind the brainstem, is the what?
A: Cerebellum.

The cerebellum has a horizontally furrowed surface, the cerebellar cortex, that makes it look what?
A: Different from any other brain area.

The living brain is very soft, having a consistency similar to what?
A: Soft gelatin or soft tofu.

Although referred to as grey matter, the live cortex is what color?
A: Pinkish-beige in color and slightly off-white in the interior.

The human brain has many properties that are common to all vertebrate brains, including a basic division into what three parts?
A: The forebrain, midbrain, and hindbrain.

 

As a hominid brain, the human brain is substantially enlarged even in comparison to what?
A: The brain of a typical monkey.

 The sequence of evolution from Australopithecus (four million years ago) to Homosapiens (modern man) was marked by a steady increase in what?
A: Brain size, particularly in the frontal lobes, which are associated with a variety of high-level cognitive functions.

The dominant feature of the human brain is what?
A: Corticalization.

The cerebral cortex in humans is so large that it overshadows what?
A: Every other part of the brain.

The cerebral cortex is essentially a sheet of neural tissue, folded in a way that allows what?
A: A large surface area to fit within the confines of the skull.

When unfolded, each cerebral hemisphere has a total surface area of about how many square feet?
A:  1.3 square feet.

 

The cerebral cortex is nearly symmetrical with left and right hemispheres that are approximate what?
A: Mirror images of each other.

Each hemisphere is conventionally divided into what four "lobes"?
A: The frontal lobe, parietal lobe, occipital lobe, and temporal lobe.

The lobes are named after what?
A: The bones of the skull that overlie them.