20 Questions
Which type of sensory receptors are most common in the somatic sensory system?
Mechanoreceptors
Which of the following is NOT a function of mechanoreceptors in the body?
Monitoring force against the teeth
What is the largest and best-studied receptor among the mechanoreceptors of the skin?
Pacinian corpuscles
Where are Ruffini's endings found?
In both hairy and glabrous skin
What is the size of Meissner's corpuscles compared to Pacinian corpuscles?
They are much smaller
Where are Merkel's disks located?
Within the epidermis
What do Krause end bulbs look like?
Knotted balls of string
Which type of mechanical energy can the skin NOT sense?
Pressure
Where are Pacinian corpuscles most densely located in the human body?
In the fingers
What is the function of mechanoreceptors in the body?
Monitoring physical distortion
Which type of mechanoreceptor has a small receptive field?
Merkel's disks
Which type of mechanoreceptor has a large receptive field?
Pacinian corpuscles
Which type of mechanoreceptor is rapidly adapting?
Meissner's corpuscles
Which type of mechanoreceptor is slowly adapting?
Merkel's disks
Which sensory system uses facial vibrissae to sense the local environment?
Whiskers on the face
Which sensory system is a major sensory system for some animals?
Whiskers on the face
Which method did Åke Vallbo and his colleagues develop?
Recording from single sensory axons in the human arm
What does it feel like when a single hair on the back of your arm is brushed with the tip of a pencil?
A mosquito bite
What can be derived by a rat by waving its facial vibrissae (whiskers)?
Information about the texture of nearby objects
What did Swedish neuroscientist Åke Vallbo and his colleagues evaluate?
The perceptions produced by various mechanical stimuli
Test your knowledge on mechanoreceptors of the skin and their functions in the somatic sensory system. Explore how these sensory receptors detect physical distortion and monitor various bodily processes.
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