Questions and Answers
What is the innermost layer of the eye?
Retina
The five basic tastes are sweet, salty, sour, bitter, and ____________________.
Umami
What do you call a person who sings off key?
Amusia
Ceruminous glands secrete cerumen, also known as ______________________...catches bacteria and foreign things entering the ear.
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The common cold is the most frequent cause of _________________ .
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Irregular curvature of the cochlea causes astigmatism.
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Color blindness is more common in women than in men.
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Besides being able to hear, the ears also help to maintain balance.
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Dizziness is the main culprit for the ringing sound of tinnitus.
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The human mouth contains about 10,000 sensory receptors for taste.
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What are the fluids named that fill the eyeball?
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What percentage of our sense of taste actually results from what we smell?
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The Eustachian tube equalizes pressure on either side of the_____________________?
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What is the clinical name for an inner ear infection?
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In salmon, which sense accounts for their ability to return to home rivers?
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What is a short, tubelike structure that connects the outer ear to the eardrum?
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What is the chamber in the inner ear that contains the three semicircular canals?
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What triggers a reaction to irritation of the nasal membranes, producing nasal congestion and drainage?
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What are the tiny bumps on the tongue that house taste buds called?
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What are the tear secretors located above the lateral end of each eye called?
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What is a dime-size area at the top of each nasal cavity that houses sensors responsible for smell?
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What is the sensory pathway from the nasal cavity to the olfactory cortex of the brain called?
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What sensory cells in the retina are sensitive to bright light and provide color vision?
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What transmits visual sensory signals to the occipital lobe of the brain?
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What is the irregularly shaped outer portion of the ear called?
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Study Notes
Eye Anatomy
- Retina: Innermost layer of the eye responsible for light detection.
- Aqueous and Vitreous Humors: Fluids that fill the eyeball, maintaining its shape.
- Tympanic Membrane: Also known as the eardrum, equalizes pressure through the Eustachian tube.
- Optic Nerve: Transmits visual signals from the retina to the brain's occipital lobe.
- Cones: Retina's sensory cells that detect bright light and enable color vision.
Sense of Taste
- Umami: One of the five basic tastes, alongside sweet, salty, sour, and bitter.
- Taste Buds: Located in tiny bumps called Papillae on the tongue, responsible for taste sensation.
- Taste Sensation: About 75% to 90% of taste is influenced by smell.
Auditory System
- Auditory Canal: Tubular structure connecting outer ear to the eardrum.
- Vestibule: Inner ear chamber containing three semicircular canals, important for balance.
- Amusia: Condition characterized by singing off-key; linked to auditory processing.
Ear Health and Conditions
- Earwax (Cerumen): Secreted by ceruminous glands, protects against bacteria and debris.
- Labyrinthitis: Clinical term for inner ear infections.
- Tinnitus: Ringing sound in the ear; dizziness is not the primary cause.
- Rhinitis: Common cold is a frequent cause of nasal inflammation and blockage.
Nasal and Olfactory Function
- Histamines: Molecules that cause nasal congestion and irritation reactions.
- Olfactory Region: Tiny area at the top of each nasal cavity containing smell sensors.
- Olfactory Nerve: Pathway transmitting smell signals from the nasal cavity to the brain.
Other Notable Structures
- Lacrimal Glands: Located above each eye, responsible for tear production.
- Auricle: Irregularly shaped outer part of the ear crucial for sound collection.
Studying That Suits You
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Description
Test your knowledge with these flashcards focusing on key terms from Chapter 7 of Biology. Each card includes a word and its definition to help reinforce your understanding of sensory perception and anatomy. Ideal for students preparing for exams or wanting to enhance their vocabulary.
