2024 BIOD 152 - Portage Learning Anatomy and Physiology Module 1-7 Exam With Answers (139 Solved Questions)
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BIOD 152 Module 3 - Nervous System Part 3 (Special Senses) With
Complete Solutions
What are the 5 primary tastes? - Sweet, salty, sour, bitter, savory (umami)
Sweet Taste - Produced by many compounds including sugars and some amino
acids.
Salty Taste - Produced by mainly metal salts, especially NaCl.
Sour Taste - Produced by acids like acetic acid (in vinegar).
Bitter Taste - Produced by many drugs like aspirin.
Savory Taste - Due to certain amino acids and is found in many foods like fish, ripe
tomatoes, aged cheeses, and soy sauce.
Anosmia - The loss of smell;
common after a traumatic brain injury.
Can be temporary or permanent from a TBI depending on the severity of the injury
and what part of the pathway was damaged.
Ageusia - Loss of the sensation of taste
Complete Solutions
What are the 5 primary tastes? - Sweet, salty, sour, bitter, savory (umami)
Sweet Taste - Produced by many compounds including sugars and some amino
acids.
Salty Taste - Produced by mainly metal salts, especially NaCl.
Sour Taste - Produced by acids like acetic acid (in vinegar).
Bitter Taste - Produced by many drugs like aspirin.
Savory Taste - Due to certain amino acids and is found in many foods like fish, ripe
tomatoes, aged cheeses, and soy sauce.
Anosmia - The loss of smell;
common after a traumatic brain injury.
Can be temporary or permanent from a TBI depending on the severity of the injury
and what part of the pathway was damaged.
Ageusia - Loss of the sensation of taste
Stimulation of olfactory receptors has a great effect on the sensation of taste in
addition to taste bud stimulation. When the olfactory receptors are obstructed by
nasal congestion or other factors, the sensation of taste is dulled or completely
lost. Other factors, such as TBI or a brain tumor inside the brain, can also cause
ageusia if the taste pathway is damaged.
Special Senses - The 5 senses that have specialized organs containing specialized
receptor cells, which carry their impulses by way of specialized somatic and
visceral afferents.
(Vision, smell, taste, hearing, and equilibrium)
Which of the senses is not a special sense? - Touch
Instead of having a specialized sense organ, touch uses general receptors
composed of modified dendrites of sensory neurons.
What does touch include? - Pressure, vibration, pain, heat, and the combined
information is carried in general somatic afferents and general visceral afferents.
How many layers consist of the organ that is responsible for sight? - The eye
consists of 3 layers
What does the outer fibrous layer of the eye include? - Sclera and cornea
Sclera - The posterior portion of the outer layer of the eye; AKA the white of the
eye.
addition to taste bud stimulation. When the olfactory receptors are obstructed by
nasal congestion or other factors, the sensation of taste is dulled or completely
lost. Other factors, such as TBI or a brain tumor inside the brain, can also cause
ageusia if the taste pathway is damaged.
Special Senses - The 5 senses that have specialized organs containing specialized
receptor cells, which carry their impulses by way of specialized somatic and
visceral afferents.
(Vision, smell, taste, hearing, and equilibrium)
Which of the senses is not a special sense? - Touch
Instead of having a specialized sense organ, touch uses general receptors
composed of modified dendrites of sensory neurons.
What does touch include? - Pressure, vibration, pain, heat, and the combined
information is carried in general somatic afferents and general visceral afferents.
How many layers consist of the organ that is responsible for sight? - The eye
consists of 3 layers
What does the outer fibrous layer of the eye include? - Sclera and cornea
Sclera - The posterior portion of the outer layer of the eye; AKA the white of the
eye.
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