Chapter 7
What is included in the senses?
General senses to detect touch, pressure, pain, heat, cold, and stretch
What condition is caused by increased intraocular pressure?
Glaucoma
What is perception?
How the brain interprets sensory information
Which of the following alert the nurse that the patient is experiencing severe pain? Select all that apply.
Increased heart rate Sweaty palms
The client is complaining of severe dizziness. Where should the nurse suspect a disorder?
Inner ear
Which statement does not describe the vestibular apparatus?
It is located in the middle ear.
Select all of these that are true regarding vision. Select all that apply.
Light from an image enters the eye and is refracted by the cornea, the aqueous humor, the lens, and the vitreous humor. An upside-down image is projected on the retina. The optic nerve carries the message of the upside-down image to the brain.
Which of the following disorders does not affect the eye?
Otitis media
What is the external part of the ear that is visible to the naked eye?
Pinna
Which of the following symptoms would alert the school nurse that the child has conjunctivitis?
Redness and pain
The nurse is explaining that lysozymes have antimicrobial activity and are found in ______.
tears
Static equilibrium can be best described as the sense of equilibrium ______.
when the head is moving in a straight line
Which statement does not describe how equilibrium is perceived?
Dynamic equilibrium is associated with the saccule and utricle.
What are photoreceptors used for?
The physiology of vision
Which of the following statements is (are) true concerning receptors for general senses in the skin? Select all that apply.
Thermoreceptors detect heat and cold. Mechanoreceptors detect touch, vibration, stretch, and pressure. Free nerve endings detect heat, cold, and pain.
Which of the following accurately describes the effects of aging on the senses of the body?
As we age, it is more difficult for the brain to interpret the sense of equilibrium so walking may become more difficult.
What kind of receptor is the olfactory hair?
Chemoreceptor
How is vision perceived? Select all that apply.
Rhodopsin and iodopsin react to light to initiate a local potential on a bipolar neuron. Images are projected upside down on the retina. Depth perception allows objects to be located in space.
Which tastes are most concentrated on the lateral sides of the tongue?
Salty and sour
Which of these are classified as special senses? Select all that apply.
Taste and smell Vision Hearing and balance
How is sound perceived?
The bones of the middle ear amplify the vibration of the tympanic membrane 20 times.
Which of the following is an accurate statement regarding the physiology of taste?
The most sensitive taste buds for sweet, a sensation caused by sugar, is on the tip of the tongue.
Structures directly associated with the eyeball include the ______.
aqueous humor and cornea and choroid layer and ciliary body
The nurse explains to the patient that glaucoma is caused by impaired drainage of ______.
aqueous humor that increases intraocular pressure.