Sensory quiz

All of the following are sensory organs EXCEPT

• Skin

• Tongue

• Large intestine

• All are examples of sensory organs

The tympanic membrane vibrates in order to amplify the sounds to sent to the cochlea. The tympanic membrane is therefore an example of a(n):

• Associated structure

• Receptor cell

• Chemoreceptor

• Transmembrane protein

The sensory receptor communicates to the afferent neuron through...

• the secretion of a chemical signal

• They are connected to efferent neurons, not afferent

• a uniform complex (they are attached)

• A and B

Select the correct pathway of an incoming signal

• Sensory receptor --> action potential --> action

• Sensory receptor --> graded potential --> action potential

• Accessory structure --> sensory receptor --> action potential

• Accessory structure --> graded potential --> action potential

Chemoreceptors detect:

• Molecules when we smell

• Certain chemicals when we eat

• Molecules in the blood

• None of the above

Chemoreceptors bind sodium to _____ the receptor and bind hydrogen to _____ the receptor

• hyperpolarize, depolarize

• hyperpolarize, hyperpolarize

• depolarize, depolarize

• depolarize, hyperpolarize

Chemoreceptors for sweet and bitter taste, and odors are:

• always excitatory

• always inhibitory

• either excitatory or inhibitory

• none of the above

mechanoreceptors respond to pressure by ______ and _____ its ion channels

• distorting shape, opening

• maintaining shape, opening or closing

• distorting shape, opening or closing

• maintaining shape, closing

mechanoreceptors contain a hair cell that _____ responsive to vibration, pressure, and touch.

• is

• is not

Hair cells contain a _____ concentration of potassium ions, depolarization of a hair cell will cause these ions to move _____

• low, into the cell

• high, out of the cell

• low, out of the cell

• high, into the cell