Chapter 19 Disease Of The Ears, Eyes, Nose and Throat Flashcards
1. The \_\_\_\_\_\_\_, also called the eyeball, is a spherical structure measuring about 1 inch in diameter. A) iris B) globe C) retina D) cornea
Ans: B
Page: 1091
Type: General Knowledge
- In contrast to the oculomotor nerve, the optic nerve:
A) is the second cranial nerve and provides the sense of vision.
B) carries parasympathetic nerve fibers that constrict the pupil.
C) is the third cranial nerve and regulates movement of the eyes.
D) innervates the muscles that cause motion of the upper eyelids.
Ans: A
Page: 1091
Type: General Knowledge
3. Icteric sclera are: A) white. B) cloudy. C) yellow. D) bloodshot.
Ans: C
Page: 1091
Type: General Knowledge
4. Cataracts are caused by clouding of the: A) iris. B) cornea. C) retina. D) sclera.
Ans: B
Page: 1091
Type: General Knowledge
5. In dark-skinned patients, cyanosis can be detected in the: A) sclera. B) iris. C) cornea. D) conjunctiva.
Ans: D
Page: 1091-1092
Type: General Knowledge
6. Which of the following structures receives light impulses and converts them to nerve signals that are conducted to the brain by the optic nerve and interpreted as vision? A) Retina B) Cornea C) Pupil D) Lens
Ans: A
Page: 1092
Type: General Knowledge
- Central vision is processed by the ________, which is the ________.
A) retina, central portion of the macula
B) pupil, circular opening within the iris
C) macula, central portion of the retina
D) iris, circular opening within the pupil
Ans: C
Page: 1092
Type: General Knowledge
8. The \_\_\_\_\_\_\_\_\_\_ are cone-shaped fossae that enclose and protect the eyes. A) zygomas B) orbits C) condyles D) crista galli
Ans: B
Page: 1091
Type: General Knowledge
- Which of the following statements regarding vitreous humor is correct?
A) Vitreous humor can be replenished, but it takes many years.
B) Vitreous humor is contained within the posterior chamber of the eye.
C) Vitreous humor is a jelly-like substance that maintains the shape of the globe.
D) Vitreous humor is a clear fluid that is responsible for tear production.
Ans: C
Page: 1092
Type: General Knowledge
- Aqueous humor:
A) is contained in the anterior chamber of the eye.
B) cannot be replenished by the body if it is lost.
C) is contained in the posterior chamber of the eye.
D) is found between the iris and the lens of the eye.
Ans: A
Page: 1092
Type: General Knowledge
11. The \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ secretes and drains tears from the eye. A) nasolacrimal duct B) conjunctiva C) aqueous humor D) nasolacrimal apparatus
Ans: D
Page: 1092
Type: General Knowledge
- Cardiac monitoring is recommended when caring for a patient with an eye-related emergency because:
A) eye drops or medication can cause a marked elevation in the heart rate.
B) ocular pressure can stimulate the vagus nerve and cause bradycardia.
C) vitreous humor loss can result in a variety of ventricular dysrhythmias.
D) AV heart blocks commonly occur when vitreous humor is lost.
Ans: B
Page: 1093
Type: General Knowledge
13. Common symptoms of diabetic retinopathy include all of the following, EXCEPT: A) floaters. B) blurred vision. C) yellow vision. D) blind spots.
Ans: C
Page: 1093
Type: General Knowledge
- Which of the following statements regarding the nasal septum is correct?
A) It may be slightly deviated to one side or the other.
B) The nasal septum is comprised mainly of cartilage.
C) Inflammation of the nasal septum is common during infection.
D) The nasal septum separates the oropharynx and nasopharynx.
Ans: A
Page: 1106
Type: General Knowledge
15. Which cranial nerve innervates the muscles that cause motion of the eyeballs and upper eyelids? A) Optic B) Trigeminal C) Oculomotor D) Hypoglossal
Ans: C
Page: 1091
Type: General Knowledge
16. The anterior chamber is the portion of the globe between the \_\_\_\_\_ and the \_\_\_\_\_, and is filled with \_\_\_\_\_ humor. A) iris, lens, vitreous B) cornea, iris, aqueous C) lens, iris, vitreous D) lens, cornea, aqueous
Ans: D
Page: 1092
Type: General Knowledge
- Which of the following statements regarding vitreous humor is correct?
A) Vitreous humor is a jelly-like substance that is replenished if lost.
B) Vitreous humor fills the posterior chamber and maintains the shape of the globe.
C) Vitreous humor is a clear watery fluid that fills the anterior chamber.
D) The most significant risk caused by a loss of vitreous humor is infection
Ans: B
Page: 1092
Type: General Knowledge
18. A patient with a loss of peripheral vision MOST likely has damage to the: A) retina. B) pupil. C) cornea. D) lens.
Ans: A
Page: 1092
Type: General Knowledge
19. The large cartilaginous external portion of the ear is called the: A) ossicle. B) cochlea. C) auricle. D) oval window.
Ans: C
Page: 1102
Type: General Knowledge
- The middle ear consists of the:
A) cochlea and semicircular canals.
B) organ of Corti and the external auditory canal.
C) inner portion of the tympanic membrane and the ossicles.
D) pinna and the exterior portion of the tympanic membrane.
Ans: C
Page: 1102
Type: General Knowledge
21. \_\_\_\_\_\_\_\_\_ forms the principal mass of the tooth and is much denser and stronger than bone. A) Pulp B) Dentin C) Enamel D) Gingiva
Ans: B
Page: 1109
Type: General Knowledge
22. The \_\_\_\_\_\_\_\_\_\_\_ nerve provides motor function to the muscles of the tongue. A) hypoglossal B) trigeminal C) accessory D) glossopharyngeal
Ans: A
Page: 1110
Type: General Knowledge
- Hyphema is defined as:
A) severe ecchymosis to the orbital region.
B) blood in the anterior chamber of the eye.
C) marked swelling of the globe of the eye.
D) double vision following blunt eye trauma.
Ans: B
Page: 1100
Type: General Knowledge
- Signs and symptoms of retinal detachment include:
A) flashing lights, specks, or floaters in the field of vision.
B) double vision and partial or complete loss of peripheral vision.
C) immediate pain and total loss of vision following blunt eye trauma.
D) paralysis of upward gaze and greater than 50% loss of central vision.
Ans: A
Page: 1101
Type: General Knowledge
25. What part of the eye is MOST commonly injured following a thermal burn? A) Globe B) Retina C) Cornea D) Eyelids
Ans: D
Page: 1094
Type: General Knowledge
- Which of the following statements regarding anisocoria is correct?
A) Anisocoria is a condition in which the pupils are unequal.
B) Anisocoria is a normal finding in the majority of the population.
C) Physiologic anisocoria indicates significant intracranial pressure.
D) Anisocoria is a condition characterized by bilateral pupillary dilation.
Ans: A
Page: 1094
Type: General Knowledge
- A patient with a dysconjugate gaze following an ocular injury:
A) most likely has a concomitant basilar skull fracture.
B) should have ice applied to the eyes to prevent blindness.
C) has discoordination between the movements of both eyes.
D) should be treated by irrigating both eyes for 20 minutes.
Ans: C
Page: 1093
Type: General Knowledge
28. Movement of both of the eyes in unison is called: A) dysconjugate gaze. B) sympathetic eye movement. C) extraocular movement. D) physiologic anisocoria.
Ans: B
Page: 1098, 1120
Type: General Knowledge
29. Alkali or strong acid burns to the eye should be irrigated for at least \_\_\_\_ minutes. A) 10 B) 15 C) 20 D) 30
Ans: C
Page: 1095
Type: General Knowledge
30. The ONLY indication for removing contact lenses in the prehospital setting is: A) chemical eye burns. B) acute conjunctivitis. C) cardiopulmonary arrest. D) a foreign body in the eye.
Ans: A
Page: 1097
Type: General Knowledge