NR509 Week 3 Exam UPDATED ACTUAL
QUESTIONS AND CORRECT ANSWERS
Conjunctiva - CORRECT ANSWER lines the inside of the eyelids and covers the
sclera (the white of the eye)
-composed of non-keratinized, stratified squamous epithelium with goblet cells, and also
stratified columnar epithelium
-highly vascularised, with many microvessels easily accessible for imaging studies
Cornea - CORRECT ANSWER transparent front part of the eye that covers the iris,
pupil, and anterior chamber
-cornea, with the anterior chamber and lens, refracts light, with the cornea accounting for
approximately two-thirds of the eye's total
• optical powerrefractive power of the cornea is approximately 43 dioptres
Cochlea - CORRECT ANSWER translates sound vibrations received from the middle
ear into auditory signals, which are transmitted to the brain via the vestibulocochlear nerve
-cochlea is located in the inner ear
Inner ear is responsible for - CORRECT ANSWER hearing and balance
Health Promotion & Disease Prevention: Oropharyngeal Cancer - CORRECT
ANSWER -about 40,000 adults in the US are diagnosed annually with oral or
oropharyngeal cancers
-cancers of the back of the throat are strongly linked to HPV
-Risk assessment: tobacco use, heavy alcohol use, HPV infection, poor nutrition, poor oral
hygiene, weakened immune system
Inhalation - CORRECT ANSWER the diaphragm contracts and moves downward. This
increases the amount of space in the thoracic cavity, enabling the lungs to expand.
Exhalation - CORRECT ANSWER the diaphragm relaxes
, -decreases the amount of space in the thoracic cavity and the lungs compress. Compression of
the lungs force carbon dioxide from the lungs out through the nose and mouth
Trachea - CORRECT ANSWER commonly called the windpipe
-helps filter, warm, and moisten air while conducting it into the lungs
-begins under the larynx and is made of "C-shaped" cartilage rings that keep the airway open
-branches into the right and left bronchi
Lung lobes - CORRECT ANSWER three on right
Two on left
Glaucoma - CORRECT ANSWER increased intraocular pressure results in damage to
the retina and optic nerve with loss of vision
Nystagmus - CORRECT ANSWER fine rhythmic oscillation of the eyes
6 cardinal directions of gaze - CORRECT ANSWER Have patient follow finger or
pencil with eyes
-make a wide "H" in the air.
Papilledema - CORRECT ANSWER swelling of the optic disc and anterior bulging of
the physiologic cup
-often signals elevated intracranial pressure
• seen in mass lesions, meningitis, subarachnoid hemorrhage
Weber test - CORRECT ANSWER Test done by placing the stem of a vibrating tuning
fork on the midline of the head and having the patient indicate in which ear the tone can be
heard.
Rinne test - CORRECT ANSWER hearing test using a tuning fork; checks for
differences in bone conduction and air conduction
QUESTIONS AND CORRECT ANSWERS
Conjunctiva - CORRECT ANSWER lines the inside of the eyelids and covers the
sclera (the white of the eye)
-composed of non-keratinized, stratified squamous epithelium with goblet cells, and also
stratified columnar epithelium
-highly vascularised, with many microvessels easily accessible for imaging studies
Cornea - CORRECT ANSWER transparent front part of the eye that covers the iris,
pupil, and anterior chamber
-cornea, with the anterior chamber and lens, refracts light, with the cornea accounting for
approximately two-thirds of the eye's total
• optical powerrefractive power of the cornea is approximately 43 dioptres
Cochlea - CORRECT ANSWER translates sound vibrations received from the middle
ear into auditory signals, which are transmitted to the brain via the vestibulocochlear nerve
-cochlea is located in the inner ear
Inner ear is responsible for - CORRECT ANSWER hearing and balance
Health Promotion & Disease Prevention: Oropharyngeal Cancer - CORRECT
ANSWER -about 40,000 adults in the US are diagnosed annually with oral or
oropharyngeal cancers
-cancers of the back of the throat are strongly linked to HPV
-Risk assessment: tobacco use, heavy alcohol use, HPV infection, poor nutrition, poor oral
hygiene, weakened immune system
Inhalation - CORRECT ANSWER the diaphragm contracts and moves downward. This
increases the amount of space in the thoracic cavity, enabling the lungs to expand.
Exhalation - CORRECT ANSWER the diaphragm relaxes
, -decreases the amount of space in the thoracic cavity and the lungs compress. Compression of
the lungs force carbon dioxide from the lungs out through the nose and mouth
Trachea - CORRECT ANSWER commonly called the windpipe
-helps filter, warm, and moisten air while conducting it into the lungs
-begins under the larynx and is made of "C-shaped" cartilage rings that keep the airway open
-branches into the right and left bronchi
Lung lobes - CORRECT ANSWER three on right
Two on left
Glaucoma - CORRECT ANSWER increased intraocular pressure results in damage to
the retina and optic nerve with loss of vision
Nystagmus - CORRECT ANSWER fine rhythmic oscillation of the eyes
6 cardinal directions of gaze - CORRECT ANSWER Have patient follow finger or
pencil with eyes
-make a wide "H" in the air.
Papilledema - CORRECT ANSWER swelling of the optic disc and anterior bulging of
the physiologic cup
-often signals elevated intracranial pressure
• seen in mass lesions, meningitis, subarachnoid hemorrhage
Weber test - CORRECT ANSWER Test done by placing the stem of a vibrating tuning
fork on the midline of the head and having the patient indicate in which ear the tone can be
heard.
Rinne test - CORRECT ANSWER hearing test using a tuning fork; checks for
differences in bone conduction and air conduction
