Multiple Choice Questions

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Human brain has greater development of

  • cerebrum

  • cerebellum

  • optic lobes

  • medulla oblongata


A.

cerebrum

Cerebrum is the most prominent and developed region of the brain in humans. It is the site of functions as vision, hearing, touch, smell, voluntary muscle activity, speech and memory.

The cerebellum receives information from the sensory systems, the spinal cord, and other parts of the brain and then regulates motor movements.  It coordinates voluntary movements such as posture, balance, coordination and speech.

Optic lobe function is to process and integrate incoming optical data from the eyes, detecting visual information like shapes and movements.

Medulla oblongata process information to and from the spinal cord and the cerebellum. It helps regulate breathing, heart and blood vessel function, digestion, sneezing and swallowing.


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Foramen magnum is situated in

  • buccal cavity 

  • base of skull

  • left auricle 

  • vertebrae


Arbor-vitae is composed of

  • grey matter

  • neurogleal cells

  • white matter

  • all of the the above


The genes and splenium in brain are associated with

  • cerebellum

  • crebrum

  • medulla oblongata

  • vermis


Which of the following part of human brain is associated with integration of sympathetic and parasympathetic activities ?

  • Cerebrum

  • Neopallium

  • Hypothalamus

  • Medulla oblongata


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Sensory receptor of warmth located principally at the tip of fingers is known as :

  • Weber's organ

  • organ of Giraldes

  • Ruffini's corpuscles

  • organ of Zuckerkandl


In the myopia eye defect, the rays of light :

  • do not enter the eye at all

  • meet at a focus in front of the retina

  • come to a focus at back of retina

  • come to a focus in between retina and iris


Cranium is made up of

  • 8 bones

  • 12 bones

  • 10 bones

  • 16 bones


The 'end organs of Ruffini' are receptors of :

  • heat

  • cold

  • pressure

  • touch


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The unidirectional transmission of a nerve impulse through nerve fibre is due to :

  • neurotransmitters are released by axon endings

  • neurotransmitters which are released by dendrites

  • nerve fibre which is insulated by a medullary sheath

  • sodium pump which starts operating into the nerve fibre


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