PLTW MEDICAL INTERVENTIONS- 1.3 -
REVIEW, PLTW MEDICAL
INTERVENTIONS- 1.4 REVIEW EXAM
QUESTIONS AND ANSWERS. VERIFIED
2026.
Pinna - ANS helps to cellect sound vibrations near the opening of the ear; directs sounds
waves into external auditory canal
Edward Jenner - ANS Gave boy a different strand of pox (cow pox) to use as a virus. Because a
virus only runs once, it worked as a vaccine. Then gave the boy smallpox, and the boy was
immune.
Auditory Canal - ANS sound waves are funneled down the canal and amplified; natural acidity
protects against infection; secretes cerumen to protect canal from dying out and protects
against insects
Innate Immunity - ANS nonspecific defense mechanisms that come into play immediately or
within hours of an antigen's appearance in the body (skin and chemicals)
Eustachian tube - ANS equalizes air pressure inside and outside tympanic membrane and
allows drainage of normal and diseased middle ear secretions
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, Acquired Immunity - ANS get sick, activates immune system, acquires immunity; includes
vaccines
Auditory Ossicles - ANS form the mechanical linkage between the tympanic membrane and
inner ear; deliver sound vibrations to inner ear fluid (Incus, Malleus, Stapes)
Passive Immunity - ANS mother passes on antibodies to child through breastfeeding
Tympanic Membrane - ANS sound waves from the external auditory canal hit membrane and
cause it to vibrate; reproduces frequency and form of sound wave
Live- Attenuated Vaccines - ANS Alive, but very weak; Made when the virus is weakened to
such a level that they reproduce only 20 times in the body; Potential of side effects; EX: MMR
(measles, mumps and rubella combination vaccine), varicella and the intranasal form of
influenza.
Cochlea - ANS converts stimulus from outside environment into nerve impulses for
transmission to the brain
Inactivated Vaccines - ANS Bacteria is completely killed using a chemical, usually
formaldehyde; Dead pieces of bacteria are put into vaccine; Strength tends to wear off over
time
Multiple doses are necessary; Zero chance of developing disease related symptoms; EX:
hepatitis A, hepatitis B, poliovirus, haemophilus influenzae type b (Hib), meningococcal,
pneumococcal and the injected form of influenza.
Sensory Hair Cells - ANS detect sound and head motion to begin the processes of hearing and
balance control.
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
REVIEW, PLTW MEDICAL
INTERVENTIONS- 1.4 REVIEW EXAM
QUESTIONS AND ANSWERS. VERIFIED
2026.
Pinna - ANS helps to cellect sound vibrations near the opening of the ear; directs sounds
waves into external auditory canal
Edward Jenner - ANS Gave boy a different strand of pox (cow pox) to use as a virus. Because a
virus only runs once, it worked as a vaccine. Then gave the boy smallpox, and the boy was
immune.
Auditory Canal - ANS sound waves are funneled down the canal and amplified; natural acidity
protects against infection; secretes cerumen to protect canal from dying out and protects
against insects
Innate Immunity - ANS nonspecific defense mechanisms that come into play immediately or
within hours of an antigen's appearance in the body (skin and chemicals)
Eustachian tube - ANS equalizes air pressure inside and outside tympanic membrane and
allows drainage of normal and diseased middle ear secretions
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, Acquired Immunity - ANS get sick, activates immune system, acquires immunity; includes
vaccines
Auditory Ossicles - ANS form the mechanical linkage between the tympanic membrane and
inner ear; deliver sound vibrations to inner ear fluid (Incus, Malleus, Stapes)
Passive Immunity - ANS mother passes on antibodies to child through breastfeeding
Tympanic Membrane - ANS sound waves from the external auditory canal hit membrane and
cause it to vibrate; reproduces frequency and form of sound wave
Live- Attenuated Vaccines - ANS Alive, but very weak; Made when the virus is weakened to
such a level that they reproduce only 20 times in the body; Potential of side effects; EX: MMR
(measles, mumps and rubella combination vaccine), varicella and the intranasal form of
influenza.
Cochlea - ANS converts stimulus from outside environment into nerve impulses for
transmission to the brain
Inactivated Vaccines - ANS Bacteria is completely killed using a chemical, usually
formaldehyde; Dead pieces of bacteria are put into vaccine; Strength tends to wear off over
time
Multiple doses are necessary; Zero chance of developing disease related symptoms; EX:
hepatitis A, hepatitis B, poliovirus, haemophilus influenzae type b (Hib), meningococcal,
pneumococcal and the injected form of influenza.
Sensory Hair Cells - ANS detect sound and head motion to begin the processes of hearing and
balance control.
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
