Module 9 - Sensory Systems

What determines how a sensation is experienced.

________ is awareness of a stimulus.

The conscious awareness of sensations is ________.

What part of the brain understands" a stimulus?"

T / F Pressure and touch receptors adapt quickly.

T / F It takes some time for receptors in muscles and joints that report on body position to eventually adapt.

T / F Most sensory receptors stop responding when continuously stimulated, leading to a decrease in the awareness of the stimulus

Names of the Mechanoreceptors that detect touch include:
1. Merkel disks
2. Meissner's corpuscles
3. Pacinian corpuscles
4. Ruffini corpuscles

Select all that apply

Name of the Mechanoreceptor that detects light touch
1. Merkel disks
2. Meissner's corpuscles
3. Pacinian corpuscles
4. Ruffini corpuscles

Select all that apply

Which Mechanoreceptors are encapsulated nerve endings that tell us where we have been touched
1. Merkel disks
2. Meissner's corpuscles
3. Pacinian corpuscles
4. Ruffini corpuscles

Select all that apply

Which Mechanoreceptors sense first pressure or vibration
1. Merkel disks
2. Meissner's corpuscles
3. Pacinian corpuscles
4. Ruffini corpuscles

Select all that apply

If a pressure stimulus continues to a given area it is detected by:
1. Merkel disks
2. Meissner's corpuscles
3. Pacinian corpuscles
4. Ruffini corpuscles

Select all that apply

T / F Free nerve endings are found in the superficial tissues of the body.

What triggers free nerve endings?

If you have a heart attack you will probably have pain in the chest and left arm. What is this pain referred to as?

A child has a fever, pain in the right lower abdomen and elevated white blood cell count. What is the likely diagnosis?

T / F The sclera is the transparent area of the eye which allows light penetration.

T / F The Iris regulates pupil size.

The nutrients supplied to the eye by blood vessels are delivered to a structure called the ______.

T / F There are more cones in the eye than there are rods.

In poor lighting, we depend more on rods than we do cones.

There are 3 type of cones in the eye. They detect which 3 colors.

Sound waves can be viewed on an oscilloscope. When the cycles are closer together the pitch will be
1. Higher Pitch
2. Lower Pitch

Sound waves can be viewed on an oscilloscope. When the height of the cycles is shorter the amplitude will be
1. Less volume (quieter)
2. More volume (louder)

Name the 3 bones in the ear.scientific names).

The smallest bone in the human body is the

The bones in the ear have 3 common names that might make you think of a blacksmith. What are the 3 common names.

List the sequence of events that make hearing possible in order of their occurrence.

A A child looses most of the hearing in one ear suddenly without a reason. There are no signs of infection or trauma. His mother takes him to the doctor who examines his ear. The doctor removes a bean from down deep in the ear canal with some tweezers. The boy's hearing is restored immediately. Which of the 2 types of hearing loss did he have?

John has always liked his music loud. By the time he is in his forties he is having a noticeable reduction in hearing. He sees an audiologist that explains he has a sensorineural hearing lost and he can only help him a limited amount. He has damage because it has affected 2 parts of the anatomy of the ear. Name them.