Draw a labelled diagram of the human eye and name the part that changes the focal length of the lens.
Nervous System
Original Khojo Papers practice question — not from a past board paper.
An unconditioned reflex is inborn and needs no learning, as the withdrawal of the hand from a hot object does. A conditioned reflex is acquired through repeated experience and can be lost if not reinforced, as the mouth watering at the sight of food does, which was demonstrated by Pavlov in dogs.
No citable source has been recorded for this record. Treat it as practice material, not as fact.
A conditioned reflex involves the cerebrum, while a simple reflex does not.
From the same topic and chapter, at a similar level.
Draw a labelled diagram of the human eye and name the part that changes the focal length of the lens.
Nervous System
State three differences between the sympathetic and the parasympathetic nervous systems.
Nervous System
Define a reflex action and describe the path of the reflex arc when the hand touches a hot object.
Nervous System
What is a synapse, and how is an impulse carried across it?
Nervous System
Name the three parts of the human brain and state one function of each.
Nervous System
Distinguish between a sensory, a motor and a relay neuron.
Nervous System