CBSE
Multiple Choice QuestionsFrom outer to inside the sequence of three bones present in the middle ear of mammals is
malleus, stapes and incus
stapes, malleus and incus
malleus, incus and stapes
incus, malleus and stapes
Tree of life is
arbor vitae
pons Varolii
organ of Corti
diencephalon
The cavity of diencephalon is known as
I ventricle
II ventricle
III ventricle
iter
Autonomic nervous system affects
reflex actions
sensory organs
internal organs
None of these
The velocity of conduction of nerve impulse in frog is
300 m/s
same as of electricity
faster than sound
30 m/s
If dorsal nerve of spinal cord is broken down then its effect is
no impulse is transmitted
impulse is transmitted but slowly
impulse is transmitted fast
no effect on impulse
In a man, abducens nerve is injured. Which one ofthe following functions will be affected?
Movement of the eye ball
Swallowing
Movement of the tongue
Movement of the neck
Aqueous and vitreous humour are divided by
lens
iris
retina
optic nerve
Neural canal is present in
humerus
tibia-fibula
vertebral column
cranial bones
Eustachian canal connects
middle ear with external ear
middle ear with internal ear
external ear with internal ear
pharynx with middle ear
