Sympathetic nervous system induces
heart beat
secretion of digestive juices
secretion of saliva
All of the above
Retina is most sensitive at
optic disc
periphery
macula lutea
fovea centralis
Which cranial nerve has the highest number of branches?
Facial nerve
Trigeminal
Vagus nerve
None of these
Characteristic feature of human cornea is that
it is secreted by conjunctiva and glandular tissue
it is lacrimal gland which secretes tears
blood circulation is absent in cornea
in old age it become hard and white layer deposits on it which causes the cataract
Four healthy people in their twenties got involved in injuries resulting in damage and death of a few cells of the following. Which of the cells are least likely to be replaced by new cells?
Osteocytes
Malpighian layer of the skin
Liver cells
Neurons
Ivan Pavlov performed experiments on
simple reflexes
conditioned reflexes
cardiac reflexes
origin of life
Light rays entering the eye are controlled by
pupil
iris
cornea
lens
Respiratory centre is situated in
cerebellum
medulla oblongata
hypothalamus
cerebrum
Which of the following is regarded as a unit of nervous tissue?
Myelin sheath
Axons
Dendrites
A person suffering from the deficiency of the visual pigment rhodopsin is advised to take more
radish and potato
apple and grapes
carrot and ripe papaya
guava and ripe banana
