Physiology 2: Lab 2 Exam Senses
Questions with Verifie Answers
Describe how sensory information helps to sustain life. - ANSWERSWe need to sense
pain. If sensory input is missing, we can't react and remove ourselves from a harmful
stimulus.
These sense organs detect light. - ANSWERSA. Thermoreceptors
B. Correct! Photoreceptors
C. Chemoreceptors
D. Nociceptors
Name the structure above and state its division in the ear. (The structure is highlighted
in blue and indicated by the arrow.) - ANSWERSAuricle/Pinna; external
What is true concerning the structures (highlighted in blue) above? - ANSWERSA. It is
called the semicircular canal.
B. It contains the anterior, posterior and lateral canals.
C. Correct! It contains the Scala tympani.
D. It detects change in motion.
The image above is a cross-section of the: - ANSWERSA. Cornea
B. Correct! Cochlea
C. Semicircular canals
D. Saccule
This secretes a lipid substance that helps to keep tears contained inside the eye: -
ANSWERSA. Nasolacrimal duct
B. Gland of Zeis
C. Correct! Meibomian Gland
D. Lacrimal canaliculi
Obstruction of the lacrimal apparatus results in: - ANSWERSA. Dry Eye
B. Correct! Watery eye
C. Conjunctivitis
D. A stye
Name and discuss the purpose of the structure above (indicated by the arrow). -
ANSWERSThe lacrimal gland is responsible for producing tears. Tears are necessary
to help protect and clean the eye from foreign debris as well as keeping the eye moist.