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Exam: nervous system. (8th grade)

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Last updated almost 4 years ago
15 questions
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Question 1
1.

Circle or write the name (if you are in the school) of at least 2 living things that do not have any type of nervous system:

Question 2
2.

Question 3
3.

Question 4
4.

Canine distemper is a viral disease that affects a wide variety of mammalian families, including domestic and wild dog species. This is a demyelinating disease, so it is directly related to the nervous system. Over time, the dog can develop more severe seizures, paralysis, decreased vision and coordination. These dogs are often humanely euthanized due to the immense pain and suffering they face. According to the symptoms and the type of disease, what could be a hypothesis to explain this disease?

Question 5
5.

Using the learned concepts, explain in a short text what is happening in this image:

Question 6
6.

Question 7
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Question 8
8.

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Question 13
13.

Which coud be the response of your motor neurons?

In the 20th century, a lobotomy became a legitimate alternative treatment for serious mental illness, such as schizophrenia and severe depression. Physicians even used it to treat chronic or severe pain and backaches.
“As those who watched the procedure described it, a patient would be rendered unconscious by electroshock. The surgeon would then take a sharp ice pick-like instrument, insert it above the patient’s eyeball through the orbit of the eye, into the brain, moving the instrument back and forth. Then he would do the same thing on the other side of the face.”
In 1941, when Rosemary Kennedy was 23, her father Joseph Kennedy was told by her doctors that a new procedure would help calm her mood swings that the family found difficult to handle at home. Her father gave permission for the lobotomy to be performed. After the surgery Rosemary was reduced to an infantile mentality that left her incontinent and staring blankly at walls for hours. Her verbal skills were reduced to unintelligible babble.
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Which of these animals do not show any level of cephalization?

Grasshopper
Hydra
Planaria (flatworm)
Earthworm
What will happen to a neuron that has its axon covered by damaged myelin?
It will end very fast and strong impulses to other neurons.
It won't be able to communicate with any other neurons.
It will communicate with more neurons than normal.
It will send slower and interrumpted impulses to other neurons.
A friend of yours is having hearing problems: he has been developing hearing loss in his left ear. He told you that the doctor claims it is caused by a problem in his brain. Your friend didn't understand what that means, so you're trying to explain what you think is happening. According to the image, you will explain to your friend that perhaps:

he is having a very bad sickness that affects all his brain.
an specific part of the rigth half of the brain should be affected.
an specific part of the rigth half of the brain should be affected.
is imposible that a brain problem was the cause of a hearing loss.
According to the image, the snakes:
do not smell trough the nose.
have specialized ligth receptors.
don't have any chemical receptors.
have flavor receptors in the tongue.
"It’s easy to take our senses for granted—until there’s a problem with one of them. This is something many people who suffered from COVID-19 discovered when they unexpectedly lost their senses of smell and taste. More recently, though, it has become apparent that a COVID-19 infection can also affect sight, hearing, and touch. In the short term and the long run, this virus can affect all the ways we perceive and interact with the world. Though not life-threatening, “it’s disarming to lose any of these senses, especially as suddenly as happens in the context of this infection,” says Jennifer Frontera, a professor of neurology at the NYU Grossman School of Medicine."

According to the text, what function of the nervous system can be the most affected due to a COVID-19 infection?
Responding to any daily-life situation.
Collecting and receiving sensorial stimuli.
Processing information in the CNS.
Storing memories or knowledges.
Question 9
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Question 10
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Question 11
11.

Question 12
12.

Question 14
14.

Question 15
15.

Which type of neurons are doing more synaptic process in this baby?
Interneurons
Sensory neurons
Motor neurons
Neuroglial cells
The part of the brain that helps this baby to learn to walk is:
Frontal Lobe
cerebrum
Cerebellum
Hypothalamus
You receive a phone call, how your sensory neurons act here?
By sending information from the taste sense to the motor neurons to answer the call.
By processing the information from your smell sense to create a response in the interneurons.
By catching and sending information from hearing sense to be processed in the brain's interneurons.
By sending information from the sight sense to the motor neurons in the spinal cord.
Your phone is ringing, select the brain lobes that help you the most to process the information.
Frontal
Brainstem
Parietal
Occipital
hypothalamus
Temporal
Amygdala
Why electroshock was usefull to leave patients unconsious?
Because the messages carried by neurons are transmited through chemical messengers
Because the neurons pass the information to other neurons thanks to the synaptic terminals.
Because only the motor neurons need electric impulses to work.
Because the neurons send information to other neurons through electric impulses.
According to Rosemary's story, which brain lobe was affected after the lobotomy procedure?
Parietal
Frontal
Temporal
Occipital