Those parts of the body that receive stimuli from internal or external environment are called……
a) receptors
b) transductors
c) effectors
d) both a and b
Explanation: Receptors are biological transducers that convert energy from both external and internal environments into electrical impulses. They may be massed together to form a sense organ, such as the eye or ear, or they may be scattered, as are those of the skin and viscera.
A receptor may be…….
a) a complete organ
b) just a cell
c) just a neuron endings
d) all of these
The information collected by the receptor is transmitted to the central nervous system through……..neurons.
a) sensory
b) motor
c) inter
d) all of these
Explanation: sensory neurons bring messages to the CNS
Classification of Receptors:
Which of the following receptors detect light stimuli?
a) photoreceptors
b) Chemoreceptors
c) mechanoreceptors
d) Nociceptors
Explanation: for example rods and cone cells in the retina of eye
Which of the following receptors detect ions or molecules?
a) photoreceptors
b) Chemoreceptors
c) mechanoreceptors
d) Nociceptors
Explanation: nose and tongue have Chemoreceptors
