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

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

Foramen magnum is situated in

• buccal cavity 

• base of skull

• left auricle 

• vertebrae

The genes and splenium in brain are associated with

• cerebellum

• crebrum

• medulla oblongata

• vermis

Scala vestibuli is connected with

• fenestra rotundus

• fenestra ovalis

• scala tympani

• scala media

The friction between the eyelids and the cornea is avoided by the secretion of

• lachrymal glands

• conjunctiva and eyelids

• hardarian glands

• Meibomian glands

Which of the following element is responsible for Minamata disease?

• Hg

• Pb

• Cd

• Fe

Which statement is incorrect for ion-channels?

• They are proteins

• Movement through them is simple diffusion

• Movement through them is from high to low concentration

• All ions pass through the same type of channel

269.

Part of the brain concerned with the muscular movement is

• cerebellum

• thalamus

• Hippocampus

• temporal lobe of cerebrum

In human, corpus callosum connects

• the two optic lobes

• bone and muscle

• the two cerebral hemispheres

• two lobes of pituitary gland