Multiple Choice Questions

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Which of the following structures or regions is incorrectly paired with its functions?

  • Medulla oblongata : Controls respiration and cardiovascular reflexes

  • Limbic system: consists of fibre tracts that interconnect different regions of brain; controls movement.

  • Corpus callosum: band of fibres connecting system: left and right cerebral hemispheres.

  • Hypothalamus: production of releasing hormones and regulation of temperature,the hunger and thirst.


B.

Limbic system: consists of fibre tracts that interconnect different regions of brain; controls movement.

Limbic system (emotional motor system) is emotional brain. It controls all emotions in our body but not movements. It is located in the core of the brain and includes the amygadla, hippocampus and hypothalamus.


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Match the following columns.

Column I Column II
A Sacral nerves 1. 1 Pair
B Thoraic nerves 2. 8 Pair
C Cocygeal nerves 3. 7 Pairs
D Cervical nerves 4. 12 Pairs
    5. 5 Pairs

  • A B C D
    4 1 3 2
  • A B C D
    5 3 1 2
  • A B C D
    5 4 1 1
  • A B C D
    2 5 3 1

Pick the hormone which is not secreted by human placenta.

  • hCG

  • hPL

  • Prolactin

  • Oestrogen


Nissl bodies are mainly composed of

  • Proteins and lipids

  • DNA and RNA

  • Free ribosomes and RER

  • Nucleic acids and SER


Lens of eyes is derived from

  • Ectoderm

  • Mesoderm

  • Endoderm

  • Both (b) and (c)


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The transparent lens in the human eye is held in its place by

  • ligaments attached to the ciliary body

  • ligaments attached to the iris

  • smooth muscles attached to the ciliary body

  • smooth muscles attached to the iris


Which of the following statement is correct in relation to the endocrine system?

  • Adenohypophysis is under direct neural regulation fo the hypothalamus

  • Organs in the body like a gastro-intestinal tract, heart, kidney and liver do not produce any hormone.

  • Non-nutrient chemicals produced by the body in trace amount that act as inter-cellular messanger are known as hormones.

  • Releasing and inhibitory hormones are produced by the pituitary gland


During the transmission of nerve impulse through a nerve fibre, the potential on the inner side of the plasma membrane has which type of electric charge?

  • First negative then positive and again back to negative

  • First positive than negative and continue to be negative

  • First negative then positive and continue to be positive

  • First positive then negative and again back to positive


Schneiderian and tympanic membrane respectively belongs to

  • Ear and nose

  • Ear and eye

  • Ear and ear

  • Nose and ear


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 In the central nervous system, myelinated fibres form the ….., while the non-myelinated fibre cells form the ……

  • Grey matter, white matter

  • White matter, grey matter

  • Ependymal cells, neurosecretory cells

  • Neurosecretory cell, ependymal cells


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