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Questions and Answers
What type of cells are the 1st order neurons in the pathway of smell sensation?
What type of cells are the 1st order neurons in the pathway of smell sensation?
- Sensory Neurons
- Olfactory (Bipolar) Cells (correct)
- Tufted Cells
- Mitral Cells
Which of the following cells are NOT part of the 2nd order neurons in the pathway of smell sensation?
Which of the following cells are NOT part of the 2nd order neurons in the pathway of smell sensation?
- Sensory Receptors (correct)
- Tufted Cells
- Olfactory (Bipolar) Cells (correct)
- Mitral Cells
What is the function of the 1st order neurons in the pathway of smell sensation?
What is the function of the 1st order neurons in the pathway of smell sensation?
- Sending signals to the brain
- Processing smell information
- Detecting odor molecules (correct)
- Transmitting electrical signals
Which cells are responsible for sending signals to the brain in the pathway of smell sensation?
Which cells are responsible for sending signals to the brain in the pathway of smell sensation?
What is the correct order of neurons in the pathway of smell sensation?
What is the correct order of neurons in the pathway of smell sensation?
Which muscle is responsible for moving the eye laterally?
Which muscle is responsible for moving the eye laterally?
Which muscle is used during converging of the eye?
Which muscle is used during converging of the eye?
Which muscle moves the eye downwards?
Which muscle moves the eye downwards?
Which of the following muscles is NOT involved in vertical eye movement?
Which of the following muscles is NOT involved in vertical eye movement?
Which muscle moves the eye upwards?
Which muscle moves the eye upwards?
What is the unit of measurement for frequency?
What is the unit of measurement for frequency?
What does the amplitude of a sound wave correlate with?
What does the amplitude of a sound wave correlate with?
What is the frequency of a sound wave that has 500 waves per second?
What is the frequency of a sound wave that has 500 waves per second?
What is the difference between frequency and amplitude?
What is the difference between frequency and amplitude?
What is the characteristic of a sound wave that is measured by its amplitude?
What is the characteristic of a sound wave that is measured by its amplitude?
What is the unit of refractive power of a lens?
What is the unit of refractive power of a lens?
If the focal length of a lens is 0.5 meters, what is its refractive power?
If the focal length of a lens is 0.5 meters, what is its refractive power?
What is the focal length of a lens with a refractive power of 2 diopters?
What is the focal length of a lens with a refractive power of 2 diopters?
What is the relationship between the focal length and refractive power of a lens?
What is the relationship between the focal length and refractive power of a lens?
If the refractive power of a lens is 1 diopter, what is its focal length?
If the refractive power of a lens is 1 diopter, what is its focal length?
What is composed of 2 parts in each molecule of Rhodopsin?
What is composed of 2 parts in each molecule of Rhodopsin?
What is the name of the pigment that has a purple color?
What is the name of the pigment that has a purple color?
Which part of the eye is responsible for tearing?
Which part of the eye is responsible for tearing?
What is the function of Rhodopsin in the eye?
What is the function of Rhodopsin in the eye?
What is Retinal in the context of Rhodopsin?
What is Retinal in the context of Rhodopsin?
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Study Notes
Smell Sensation Pathway
- The pathway of smell sensation has 2 order neurons: olfactory (bipolar) cells and mitral and tufted cells.
Eye Movement
- Lateral rectus: responsible for lateral gaze movement (eye looks laterally).
- Medial rectus: responsible for converging eye movement (eye looks medially).
- Superior rectus: responsible for upward eye movement (eye looks up).
- Inferior rectus: responsible for downward eye movement (eye looks down).
- Superior oblique: another muscle involved in eye movement.
Sound Waves
- Described in terms of frequency and amplitude.
- Frequency: the number of waves per second, measured in Hertz (Hz).
- Amplitude: correlates with the loudness (intensity) of sound.
Lacrimal Gland Function
- Nerve stimulation leads to lacrimal secretion (tearing).
Retinal Pigments
- Rhodopsin (visual purple) is composed of two parts: retinal and opsin.
Lenses and Refractive Power
- Diopter: a unit of measurement for the power of a lens, where the focal length is 1 meter.
- Refractive power of a lens is calculated as 1 divided by its focal length.
- Example: a lens with a focal length of 1 meter has a refractive power of 1 diopter.
- Example: a lens with a focal length of ½ meter has a refractive power of 2 diopters.
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