Tag: brain

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Multiple choice zoology neural control and coordination parts of the brain brain and its parts brain

Fill in the blank with correct option.
________ gave cognitive dissonance theory.

  1. Festinger

  2. Binet

  3. Heider

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Leon Festinger proposed the theory of cognitive dissonance in 1957, which describes the mental discomfort experienced by a person who holds two or more contradictory beliefs.

Multiple choice zoology neural control and coordination parts of the brain brain and its parts brain

The limbic system is formed by

  1. The hypothalamus ,epithalamus ,amygdala and hippocampus

  2. Hypothalamus ,amygdala and hippocampus

  3. Corpora quadrigemina and hippocampus

  4. Midbrain and hindbrain
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

the limbic system is made up of the amygdala, hippocampus, thalamus, hypothalamus, basal ganglia, and cingulate gyrus.  All the components of the limbic system work together to regulate some of the brain's most important processes.

Multiple choice zoology neural control and coordination parts of the brain brain and its parts brain

Anaesthetics reduce pain by blocking nerve conduction due to

  1. Blocking neurotransmitter receptors
  2. Blocking N$a^+$ channels
  3. Blocking $K^+$ channels

  4. All the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Local anaesthetics work primarily by binding to and blocking voltage-gated sodium channels in nerve cell membranes, which prevents the depolarization required for nerve impulse conduction.

Multiple choice zoology neural control and coordination parts of the brain brain and its parts brain

Which of the following brain structure is not considered to be part of limbic system?

  1. Amygdala

  2. Hippocampus

  3. Corpora quadrigemina

  4. Septal nuclei
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
  • The limbic system is the portion of the brain that deals with three key functions: emotions, memories, and arousal (or stimulation).
  • The components of the limbic system include Amygdala, Hippocampus, Septal nuclei, thalamus, hypothalamus, basal ganglia.
  • The posterior surface of the adult midbrain is characterized by four elevations collectively called the corpora quadrigemina. It is not a part of the limbic system.
  • Hence the brain structure is not considered to be part of the limbic is Corpora quadrigemina.
  • So, the correct answer is 'Corpora quadrigemina'.