Tag: nervous system of man

Quizzes (14) Questions (241)

Questions Related to nervous system of man

Multiple choice biology nervous system of man structure and function of spinal cord the spinal cord spinal cord

Choose the correct answer from the alternatives given.
Which of the following structures or regions is incorrectly paired with its function?

  1. Brocas regions-screening of information between the spinal cord and the brain regulates arousal and sleep

  2. Medulla oblongata - homeostatic control centres

  3. Cerebellum - unconscious co-ordination of movement and balance

  4. Hypothalamus - production of hormones and regulation of temperature, hunger, and thirst
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Broca's area is a region in the frontal lobe of the dominant hemisphere, usually the left, of the brain with functions linked to speech production.

So, the correct option is 'Broca's region - Screening of information between the spinal cord and the brain regulates arousal and sleep'.

Multiple choice biology nervous system of man human nervous system the structure of brain the human brain

The cavity of diencephalon is known as

  1. I ventricle

  2. II ventricle

  3. III ventricle

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

The third ventricle is one of four connected fluid-filled cavities comprising the ventricular system within the mammalian brain. It is a median cleft in the diencephalon between the two thalami and is filled with cerebrospinal fluid (CSF). It is in the midline, between the left and right lateral ventricles.

So, the correct option is 'III Ventricle'.

Multiple choice biology nervous system of man human nervous system the structure of brain the human brain

Any damage to the prefrontal lobes of cerebrum will predominantly affect.

  1. Personality

  2. Posture

  3. Speech

  4. Hearing
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The prefrontal lobes of the cerebrum are responsible for executive functions, including decision-making, social behavior, and personality. Damage to this area often results in significant changes to an individual's personality and temperament.

Multiple choice biology nervous system of man human nervous system the structure of brain the human brain

The brain is responsible for 

  1. Thinking

  2. Regulation of heart beat

  3. Thermo regulation

  4. All 1, 2 and 3
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Frontal lobe of cerebrum of brain is responsible for thinking, evaluation of information, judgement, decision making, and planning and response organization i.e. intellectual processes. The cardiovascular reflex center of medulla oblongata regulates the rate and force of heat beat. The thermoregulation centre is present in hypothalamus which maintains the constant human body temperature by regulation of the diameter of blood vessels (constriction or dilation), shivering and sweating mechanism. Thus, correct answer is D.