The secretion of hormones is maintained in the human body by

  • feedback mechanism
  • insulin administration
  • osmosis
  • cellular respiration

The fluid in the central canal and ventricles is classified as

  • saltatory
  • cerebrospinal
  • cranium
  • myelin

Shortening of eyeball causes

  • myopia
  • hypermetropia
  • short sight
  • distant sight

The hormones released by the adrenal cortex that maintains the balance of water and salts in the human body are called

  • oxytocin
  • corticosteroids
  • vasopressin
  • epinephrine

The hormone which prepares the human body to cope up with emergencies is known as

  • corticosteroids
  • adrenaline
  • epinephrine
  • norepinephrine

The types of coordination in organisms include

  • chemical coordination only
  • nervous coordination only
  • bio-chemical coordination
  • chemical and nervous coordination

Which of the following contracts in iris during dim light?

  • radial muscles
  • circular muscles
  • ciliary muscles
  • none of above

The cerebral lobe that is concerned with hearing and smell

  • frontal
  • parietal
  • temporal
  • occipital

The largest endocrine gland in the human body is called

  • parathyroid gland
  • adrenal gland
  • pituitary gland
  • thyroid gland

In the male, the testosterone hormone is secreted by

  • pancreas
  • kidneys
  • ovaries
  • testes

The cornea and sclera comprises the

  • outer layer of eyeball
  • middle layer of eyeball
  • innermost layer of eyeball
  • whole eyeball

The eye portion responsible for color vision and sharpness is

  • rods
  • cones
  • optic disc
  • fovea

Motor pathway conducts impulses from

  • receptors to central nervous system
  • central nervous system to effectors
  • glands to effectors
  • glands to receptors

In the disorders of the eyes, the hypermetropia is caused by

  • elongation of eyeball
  • shortness of eyeball
  • shrinkage of iodopsin
  • shrinkage of rhodopsin

The choroid gives the eye its

  • vision
  • eyelashes growth
  • dark color
  • white color

The control of pituitary gland secretion is controlled by

  • cranium
  • hypothalamus
  • thalamus
  • cerebrospinal

The brain is protected and brain tissue is provided with nutrients and oxygen by

  • cranium
  • meninges
  • skull
  • ventricles

In the inner ear, the three canals that are located posterior to the center part vestibule are classified as

  • coiled canals
  • semicircular canals
  • circular canals
  • auditory canals

The part of the cerebrum that functions for the formation of new memories is

  • hypothalamus
  • medulla oblongata
  • hippocampus
  • olfactory bulbs

The process which conducts impulses toward the body of the cell is classified as

  • dendrites
  • axons
  • Schwann cells
  • rotator neurons

If somatotropin is excessively produced during growth age, then the condition that occurs is called

  • gigantism
  • acromegaly
  • dwarfism
  • albinism

The axons of all the sensory neurons are classified as

  • motor nerves
  • rotator nerves
  • mixed nerves
  • sensory nerves

Which of the following are collectively called the brain stem?

  • thalamus, hypothalamus and midbrain
  • cerebellum, pons and medulla oblongata
  • medulla oblongata, pons and midbrain
  • thalamus, hypothalamus and medulla

Along the spinal cord, the pairs of spinal nerves are

  • 29 pairs
  • 31 pairs
  • 33 pairs
  • 35 pairs

The grey matter of cerebral cortex consists of

  • non-myelinated dendrites
  • non-myelinated axons
  • myelinated axons
  • myelinated dendrites

The human body synthesizes rhodopsin from a vitamin named

  • vitamin c
  • vitamin d
  • vitamin a
  • vitamin b

The system that uses chemicals to communicate with its effectors is called

  • nervous system
  • chemical system
  • endocrine system
  • digestive system

A person suffered from Hypermetropia unable to see the objects which are

  • distant
  • near
  • small
  • long

How many pairs of cranial nerves are present in humans?

  • 12
  • 31
  • 41
  • 51

The sensory axons and ganglion are present in

  • dorsal root
  • ventral root
  • lateral root
  • upper root
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