Tag: parts of the brain

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Questions Related to parts of the brain

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'.
Multiple choice biology control and coordination in living organisms control of blood glucose endocrine system and hormone hormones in human reproduction testes and ovary parts of the brain kidney

Which part of thyroid cartilage in larynx is closed?

  1. Dorsal

  2. Ventral

  3. Anterior

  4. Posterior
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Larynx lies ventral to the thyroid cartilage. The thyroid cartilage is the largest of the laryngeal cartilages. The thyroid cartilage forms the bulk of the front wall of the larynx. It protects the vocal cords, which are located directly behind it.

Multiple choice biology control and coordination in living organisms control of blood glucose endocrine system and hormone hormones in human reproduction testes and ovary parts of the brain kidney

Growth hormone is produced in

  1. Adrenals

  2. Thyroid

  3. Pituitary

  4. Thymus
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Growth hormone is released into the bloodstream from the anterior pituitary gland. Growth hormone release is caused by another hormone (growth hormone-releasing hormone), which is released from the hypothalamus and it causes the pituitary gland to release the growth hormone.

Multiple choice biology control and coordination in living organisms control of blood glucose endocrine system and hormone hormones in human reproduction testes and ovary parts of the brain kidney

Vasopressin is related with

  1. Conservation of water

  2. Quick digestion

  3. Dilution of urine

  4. Slow heart beat
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Vasopressin/antidiuretic hormone (ADH) is secreted by posterior pituitary gland and targets nephron tubules to increase water reabsorption and thereby decreasing water content in urine while increasing that of blood. Increased water concentration in blood raises blood volume and blood pressure. It makes the urine concentrated. Thus, the correct answer is option A.

Multiple choice biology control and coordination in living organisms control of blood glucose endocrine system and hormone hormones in human reproduction testes and ovary parts of the brain kidney

The follicle stimulating hormone is secreted from

  1. Posterior lobe of pituitary gland

  2. Reproductive gland

  3. Thyroid gland

  4. Anterior lobe of pituitary gland
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Follicle-stimulating hormone (FSH) is a glycoprotein and gonadotropin secreted by the anterior pituitary in response to gonadotropin-releasing hormone (GnRH) released by the hypothalamus. It helps in the development of follicles in female and triggers Sertoli cells to initiate spermatogenesis in the male.

So, the correct answer is option D.

Multiple choice biology control and coordination in living organisms control of blood glucose endocrine system and hormone hormones in human reproduction testes and ovary parts of the brain kidney

The hyposecretion of ADH causes

  1. Diabetes melitus

  2. Diabetes insipidus

  3. Goitre

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

Abnormal secretion of hormones brings about physical changes in the body. The hyposecretion of  ADH showcases as diabetes insipidus with increased urine output and excessive thirst. Thus, the correct answer is option B.