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