Biconvex lens is located behind the __________ .
Pupil
Neuron
Axonite
Cornea
Which spot is the point where vision is not possible ?
Blind spot
Yellow spot
Red spot
Green spot
Glaucoma affects
Eyes
Ears
Tongue
Brain
The _________ is enveloped by myelin sheath in some neurons.
Dendron
Axon
Myelin sheath
Cyton
_________ is a covering formed by fat.
Which of the following consists of cochlea, vestibules and semi circular canals?
Internal ear
External ear
Middle ear
None of these
Dendrons and axons are outgrowths from the ______________ .
Synaptic knob
Which of the following prevents the entry of dust particles into the ear?
Cochlea
Eustachian tube
Pinna
Auditory canal
By the stimulation of _______, impulses are produced.
Aqueous humor
Olfactory receptors
Auditory receptors
Optic nerve is a ______________.
Motor nerve
Mixed nerve
Sensory nerve
Ganglion
