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WorksheetsBrain
Total questions: 15
Worksheet time: 8mins
What is the main control center of the human body?
Heart
Brain
Lungs
Liver
Where is the spinal cord located?
In the skull
In the ribcage
In the vertebral column
In the abdomen
What percentage of the brain is approximately made up of water?
50-60%
65-70%
75-80%
90-95%
What is the approximate weight of the human brain?
500 g
1-1.2 kg
1.3-1.5 kg
2-2.5 kg
Which part of the brain is responsible for thinking, memory, and voluntary movements?
Cerebrum
Cerebellum
Brainstem
Spinal cord
Which part of the brain is primarily responsible for balance and coordination?
Cerebrum
Cerebellum
Brainstem
Hippocampus
What is a reflex?
A conscious decision
An involuntary response to a stimulus
A slow movement
A learned habit
Which organ supplies oxygen to the brain?
Lungs
Heart and blood vessels
Stomach
Liver
What is the basic unit of the nervous system?
Neuron
Muscle cell
Bone cell
Skin cell
Which of the following is an example of a reflex action?
Reading a book
Blinking when something approaches the eyes
Solving a math problem
Playing a musical instrument
In a reflex arc, what is the role of the receptor?
Sending signals to the muscles
Detecting changes or stimuli
Transmitting signals to the brain
Controlling muscle contraction
Which neuron carries information from the receptor to the central nervous system?
Efferent neuron
Afferent (sensory) neuron
Motor neuron
Interneuron
What happens when you accidentally touch something hot?
You immediately pull your hand away
You continue holding it
You slowly remove your hand
В You ignore the pain
In a reflex arc, which component sends the response from the central nervous system to the muscle?
Receptor
Afferent neuron
Efferent (motor) neuron
Interneuron
Which of the following is NOT part of the central nervous system?
Brain
Spinal cord
Nerves in your arms
В Both a and b
