Basic Human Biology -- Sensory System 1. _______detect energy associated with ch

Question

Basic Human Biology -- Sensory System

1. _______detect energy associated with changes in pressure, body position or acceleration.

A. Chemoreceptors

B. Mechanorecptors

C. Photorecptors

D. Thermoreptors

2. Detecting substances present in the body fluids that bathe them is the function of:

A. Thermorecptors

B. Nociceptors

C. Mechanorecptors

D. Chemoreptors

3. Which of the special senses is based on the following events? Membrane vibrations cause fluid movements which lead to bending of hair cells.

A. Taste

B. Hearing

C. Vision

D. Smell

4. Rods differ from cones in the following ways:

A. they are not located in the retina

B. they detect dim ligt, not bright light

C. they have a different visual pigment

D. two of the above

E. all of the above

5. The outermost layer of the eye is composed of:

A. Retina

B. Choroid

C. Sclera

D. none of the above

6. Match each of the following terms with the appropriate description.

I. somatic senses (general senses)       ________

II. special senses                                     ________

III. variations in stimulus intensity          ________

IV. action potential                                  ________

V. sensory receptor                                 ________

A. frequency and number of action potentials

B. produced by strong stimulation

C. endings of sensory neurons or specialized cells next to them

D. taste, smell, hearing, balance and vision

E. touch, pressure, temperature, pain and muscle sense

7. A nociceptor is a free nerve ending that produces a generator potential.

A. True

B. False

8. Myelinated axons carry action potentials by having them jump from node to node to node.

A. True

B. False

Explanation / Answer

Basic Human Biology -- Sensory System

1. _______detect energy associated with changes in pressure, body position or acceleration.

B. Mechanoreceptors

2. Detecting substances present in the body fluids that bathe them is the function of:

D. Chemoreceptors

3. Which of the special senses is based on the following events? Membrane vibrations cause fluid movements which lead to bending of hair cells.

B. Hearing

4. Rods differ from cones in the following ways:

B. they detect dim light, not bright light

5. The outermost layer of the eye is composed of:

C. Sclera

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