Receptors and Sensory Organs Flashcards
1
Q
What does the Central nervous system consist of ?
A
The brain , spinal cord and sensory organs
2
Q
What do receptors do ?
A
Detect stimuli and cause a reaction within the body as a result of the stimuli .
3
Q
What are receptors connected to ?
A
Sensory neurons
4
Q
What do changes within the receptors cause ?
A
Action potentials ( nerve impulses)
5
Q
What does a chemoreceptor detect ?
A
Presence of chemicals e.g. food , gustatory receptor
6
Q
What does a thermoreceptor detect ?
A
Changes within temperature e.g. somatosensory receptors - skin , vibrissae .
7
Q
What does a mechanoreceptor detect ?
A
Mechanical changes within the environment e.g. auditory receptors - hearing
8
Q
What does a photoreceptor detect ?
A
Visual changes and forming vision and images
