C8

Question 1

Pathogens cause two general categories of diseases

Answer 1

1. Microbial intoxications
2. Infectious diseases

Question 2

are diseases that are caused by
pathogens following colonization of some body site by the pathogen.

Answer 2

Infectious diseases

Question 3

There are three pathways for pathogens to enter the ear:

Answer 3

1. Via the eustachian (auditory) tube, from the
   throat and nasopharynx
2. Via the external ear canal
3. Via the blood or lymph

Question 4

paranasal sinuses,
nasopharynx, oropharynx, epiglottis, and larynx

Answer 4

Upper respiratory tract (URT)

Question 4

infection of the middle ear

Answer 4

Otitis media

Question 5

infection of the outer ear canal

Answer 5

Otitis externa

Question 6

trachea, bronchial
tubes, and alveoli of the lungs

Answer 6

Lower respiratory tract (LRT)

Question 7

The circulatory system consists of the

Answer 7

cardiovascular system (the heart and various vessels)

lymphatic system (lymphatic vessels, lymphoid tissue, and lymph)

Question 8

inflammation of the meninges

Answer 8

Meningitis

Question 8

The nervous system is composed of the

Answer 8

CNS (brain and spinal cord and three membranes)

peripheral nervous system (nerves that branch from the brain and spinal cord)

Question 8

Important terms
relating to the eye
and infectious
diseases of the eye

Answer 8

conjunctiva,
conjunctivitis,
keratitis,
keratoconjunctivitis

Question 8

are microbes that usually do not cause disease, but have the potential to cause disease under certain conditions.

Answer 8

Opportunistic pathogens (opportunists)