A&P 2 The Special Senses Chapter 15 – Flashcards
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Which middle ear ossicle is attached to, and transmits vibratory motion to, the oval window?
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Stapes
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Which of the following is the basic taste quality responsible for the amino acid flavor of steak?
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umami
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What does the vestibular apparatus detect?
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head position in space
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Which of the following are the receptors for static equilibrium?
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otolith membrane
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Which accessory eye structure is NOT correctly matched with its function?
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tarsal glands: produce tears
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Which structure provides the vascular support for the eye?
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the choroid
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What structure in the eye creates a visual blind spot?
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optic disc
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Which photoreceptors respond to very dim light?
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rods
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Which part of the visual pathway is responsible for our daily biorhythms?
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suprachiasmatic nucleus
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Which of the following correctly matches the equilibrium receptor organs to the type of equilibrium it monitors?
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maculae/static equilibrium
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You want to look up and to your right. Which extrinsic eye muscles would be the most active in each eye?
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right eye: inferior oblique left eye: superior rectus
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What is the portion of the eye that allows light to pass into the posterior chamber?
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iris
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Which structure is NOT matched with its function?
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ciliary body: focus the pupil
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Aqueous humor forms during capillary filtration in the __________?
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ciliary body
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Which of the following is a characteristic of the lens?
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The lens focuses light on the retina.
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Choose the correctly paired terms.
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nyctalopia: night blindness
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As the ciliary muscle relaxes, the suspensory ligaments tighten and stretch the lens, allowing for distance vision.
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True
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As light hits the retina, the first structure the light encounters is a rod or a cone
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False
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Damage to the medial portion of the optic chiasm, cause by a pituitary tumor, would lead to __________.
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loss of peripheral vision
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How are the olfactory receptors activated?
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Odorants dissolve in the mucus and bind to receptors.
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Which of the following is NOT a requirement for something to be tasted?
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The tastant must contact the basal epithelial cells of the taste buds
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Most taste buds are located __________
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on the top surface of the fungiform papillae
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Which of the following is NOT a requirement for something to be tasted?
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the cochlea
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How many ossicles are found in the ear?
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three
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At rest, when no sound is entering the cochlea, the hair cells send no signal.
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False
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Transduction of lower frequency sound waves occurs at the __________ of the cochlea
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Apex
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What structure helps us localize sound?
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the superior olivary nucleus
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Where are equilibrium receptors located?
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in the semicircular canals and in the vestibule of the ear
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Which of the following is true of receptors for dynamic equilibrium?
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The receptors for dynamic equilibrium respond to rotational forces.
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Height of a wave is called the __________.
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amplitude
