practice test lecture 14
The function of the ossicles is to: Select one: a. Collect sound waves b. Amplify sound waves c. Excite neurons of auditory nerve d. Interpret sound waves
Amplify sound waves
The outer ear includes: Select one: a. Malleus b. Vestibule c. Pinna d. Tympanic membrane
Pinna
The structures of the inner ear include these, except: Select one: a. Auricle b. Cochlea c. Vestibule d. Semicircular canals e. None of these
Auricle
The part of the inner ear that produces electric impulses in the auditory nerve to detect sound is: Select one: a. Cochlea b. Vestibule c. Semicircular canals d. All of the above
Cochlea
The tube that connects the ear to the throat is: Select one: a. Ear canal b. External auditory canal c. Semicircular canal d. Eustachian tube
Eustachian tube
After Gram staining, you are looking under the microscope and seeing pink-colored rods in chains. You can characterize them as: Select one: a. Gram-positive streptobacillus Incorrect b. Gram-negative streptobacillus c. Gram-positive streptococcus d. Gram-negative streptococcus e. Gram-positive sraphylococcus
Gram-negative streptobacillus
Opportunistic pathogens do NOT Select one: a. Cause disease when the host's immune system becomes weak b. Overgrow by excessive mitosis when given a chance c. Exist as part of normal flora d. Have a host and parasite relationship with the host e. None of these
Have a host and parasite relationship with the host
Bacteria normally living in the human colon Select one: a. Have a symbiotic relationship with the human b. Produce all the vitamins and minerals for the human c. Cause cramps and diarrhea d. Are considered germs
Have a symbiotic relationship with the human
Normal flora do the following for the human host, except: Select one: a. Produce vitamin K Incorrect b. Produce Biotin c. Create competition for pathogenic microbes d. Help digestion and absorption of carbohydrates, proteins, and fats in the colon
Help digestion and absorption of carbohydrates, proteins, and fats in the colon
The ossicle that gets moved by the vibrations of the tympanic membrane is: Select one: a. Malleus b. Incus c. Stapes d. Stirrup e. Anvil
Malleus
Which of the following would NOT cause Clostridium botulinum to sporylate? Select one: a. High temperature b. Low pH c. High pressure d. Dehydration e. None - all of the above can cause sporylation
None - all of the above can cause sporylation
Germination is Select one: a. Possible, when conditions are favorable for cell division b. Expected in the absence of water Incorrect c. Likely, if large amount of salt is added d. The same as sporylation
Possible, when conditions are favorable for cell division
The part of the inner ear that contains endolymph & perilymph is: Select one: a. mandible b. incus c. Semicircular canals d. All of the above
Semicircular canals
The part of the inner ear that is responsible for equilibrium and balance is the: Select one: a. Conch b. Vestibule c. Semicircular canals d. All of the above
Semicircular canals