answers

watching

views

11 Dec 2019

Which of the following structures has direct communication with the nasal cavity of the upper respiratory tract?

a. lacrimal ducts

b. alveoli

c. bronchioles

d. trachea

Which of the following preventive measures is most likely to prevent viral diseases of the respiratory system?

a. annual vaccines

b. hand washing

c. drinking water

d. taking prophylactic antibiotics

answers

watching

views

For unlimited access to Homework Help, a Homework+ subscription is required.

You have 0 free answers left.
Get unlimited access to 3.8 million step-by-step answers.

Get unlimited access

Already have an account? Log in

bingoLv10

15 Dec 2023

Unlock all answers

Get 1 free homework help answer.

Get unlimited access

Already have an account? Log in

You have 0 free answers left.
Get unlimited access to 3.8 million step-by-step answers.

Get unlimited access

Already have an account? Log in

Jarrod RobelLv2

13 Dec 2019

Get unlimited access

Already have an account? Log in

Related questions

QUESTION 1

Cellular respiration uses________to produce energy and releases ________as a waste product.

		O₂; CO₂
		CO₂; O₂
		ATP; G3P
		G3P; ATP

5 points

QUESTION 2

Select all of the following that compose the conducting pathways in the respiratory system.

		nasal cavity
		Pharynx
		Larynx
		Trachea
		Bronchi
		Alveoli

5 points

QUESTION 3

Match each structure with its' function.

- A. B. C. D. E. F. G.	Nasal Cavity
- A. B. C. D. E. F. G.	Alveoli
- A. B. C. D. E. F. G.	Larynx
- A. B. C. D. E. F. G.	Trachea
- A. B. C. D. E. F. G.	Bronchi
- A. B. C. D. E. F. G.	Bronchioles
- A. B. C. D. E. F. G.	Pharynx

A.	Throat
B.	Very small branches of bronchi within the lungs.
C.	Larger branching passages for air within the lungs.
D.	Location of gas exchange with the blood.
E.	Carries air from larynx and branches into bronchi.
F.	Location of the voice box, earliest location where only air passes.
G.	Carry air into the pharynx, earliest location of cleaning, warming, and humidifying the air.

8 points

QUESTION 4

Mammals are able to inhale because increasing the volume of the thoracic cavity will decrease the pressure within the lungs. This is called_____

		pump-controlled breathing
		forced inflation breathing
		negative-pressure breathing
		stretch breathing

6 points

QUESTION 5

Indentify which muscles are primarily responsible for quiet (normal, relaxed) inspiration?

		diaphragm
		internal intercostals
		sclaenes
		abdominal muscles

coffeepig115

The epiglottis acts as a

voice box.

filter for microorganisms and debris.

cover over the larynx.

producer of mucus.

ANSWER:

(Level 1, Objective 1)

Collectively, the nose, oral cavity, pharynx, epiglottis, and larynx make up the

nasopharynx.

oropharynx.

laryngopharynx.

upper respiratory system.

ANSWER:

(Level 1, Objective 1)

The cilia present on cells of the lower respiratory system function by:

trapping microorganisms and foreign debris.

propelling microorganisms and particles out.

preventing colonization by potential pathogens.

all of the above.

ANSWER:

(Level 1, Objective 2)

The most common causative agent of a swollen and painful oropharynx is

Streptococcus pyogenes.

Arcanobacterium haemolyticum.

Corynebacterium diphtheriae.

Rhinovirus.

ANSWER:

(Level 1, Objective 3)

Infections associated with cystic fibrosis are due to inflammation of the:

bronchi.

bronchioles.

lungs.

alveoli.

ANSWER:

(Level 1, Objective 3)

A physician sends a nasal washing for viral culture. This specimen is

unacceptable because it is contaminated with upper respiratory flora.

acceptable as long as it contains epithelial cells.

unacceptable if it is for the detection of influenza or respiratory syncytial viruses.

acceptable if it has a thick consistency and is yellow or green in color.

ANSWER:

(Level 2, Objective 4)

A patient is unable to produce adequate sputum for routine, acid-fast, and fungal cultures. The physician may attempt to obtain a/an

induced sputum.

transtracheal aspirate.

bronchoalveolar lavage.

pleural fluid.

ANSWER:

(Level 1, Objective 4)

9. Two throat swabs are received from a 6-year-old female with orders for a rapid screen for group A Streptococcus. One swab is tested using the group A Streptococcus rapid screen, and it is negative. The second swab is used to inoculate

a. sheep blood agar.

b. chocolate agar.

c. no culture is necessary.

d. a and b.

ANSWER:

(Level 1, Objective 6)

Which of the following disease states requires the addition of selective and/or differential medium to ensure recovery of potential pathogens from the respiratory system?

Pertussis

Cystic fibrosis

Laryngitis

a and b

all of the above

ANSWER:

(Level 2, Objective 6)

11. A throat culture provides the following results:

Moderate growth of alpha-hemolytic, catalase-negative, optochin-susceptible, gram-positive diplococci

Heavy growth of alpha-hemolytic, catalase-negative, optochin-resistant, gram-positive cocci

Heavy growth of gamma-hemolytic, oxidase-positive, glucose- and maltoseÂ-positive, gramÂ diplococci

You would report

moderate growth of Streptococcus pneumoniae and heavy growth of normal upper respiratory flora.

heavy growth of Streptococcus pneumoniae and heavy growth of normal upper respiratory flora.

heavy growth of Neisseria meningitidis and heavy growth of normal upper respiratory flora.

heavy growth of normal upper respiratory flora.

ANSWER:

(Level 3, Objective 7)

Yeast colonies in a sputum culture are considered significant when they

are present.

comprise 25% of the organisms present.

comprise 50% of the organisms present.

comprise 75% of the organisms present.

ANSWER:

(Level 1, Objective 7)

13. An 8-year-old male presents with a red and sore throat. The rapid group A Streptococcus screen is negative, and a sheep blood agar is inoculated. At 24 hours, there are no beta-hemolytic colonies present and moderate growth of normal upper respiratory flora. At 48 hours, the same culture results are present. Which of the following statements does not explain these results?

a. His sore throat is due to Haemophilus influenzae, and it will not grow on blood agar.

b. The culture was taken very early in the infection.

c. The patient received treatment prior to specimen collection.

d. The causative agent is not bacterial.

ANSWER:

(Level 2, Objective 8)

17. A quantitative bronchial alveolar lavage culture requires:

1. sheep blood agar.

2. chocolate agar.

3. 0.01 mL pipette.

4. 0.001 mL pipette.

a. 1 and 3

b. 1, 3, and 4

c. 2, 3, and 4

d. 2 and 4

ANSWER:

(Level 1, Objective 9)

18. A bronchial washing is plated to a BCYE. This agar should be examined under a laminar flow hood due to the potential for recovery of Legionella pneumophila and

a. Bordetella pertussis.

Francisella tularensis.

mould.

Pneumocystis jiroveci.

ANSWER:

(Level 2, Objective 9)

20. A physician submits a sputum with a culture request for Legionella. Select the growth medium that should be used to cultivate this organism.

a. 7H10

b. TCBS

c. BCSA

d. BCYE

ANSWER:

(Level 1, Objective 6)

coppertoad665

1. Which of the following are considered blood vessels within the cardiovascular system? (Select all that apply.)

Veins

Arteries \

Epithelial tissue

Capillaries

Epidermis

2. The middle muscle layer found in the walls of the heart is the __________.

Myocardium

Epicardium

Endocardium

Aorta

3. Blood is transported throughout the body via ___________.

Veins
Arteries

Capillaries

All of the above

4. The right atrium receives blood from all parts of the body except the ______________.

Abdominal cavity

Lungs

Dorsal cavity

Cranium

5. Blood carries which of the following?

Oxygen and cellular waste

Oxygen, nutrients, hormones, enzymes, and cellular waste

Nutrients, hormones, enzymes

Oxygen, nutrients, enzymes

6. Vocal chords are found in the ____________.

Bronchus

Trachea

Larynx and Pharynx

Nasal cavity

7. The trachea is mostly lined by ________________.

Alveoli

Ciliated

mucous membrane

Lung capillaries
Vocal chords

8. Excess CO2 from the body is __________________.

Stored in the pancreas

Digested by cells

Excreted by the respiration process

Used to make ATP

9. CO2 from the body is released into the lungs via _________________.

Ciliated mucous membrane

Alveolar air

Nasal cavity

Bronchial tree

10. The principal function(s) of gas exchange is ____________________.

To supply cells with oxygen

To remove CO2 from the body

Both A and B

Neither of the above

One of the most common chronic conditions affecting the respiratory system is asthma. Asthma is a condition characterized by inflammation of the airways. When an asthma attack is triggered, the airways become even more inflamed and can restrict breathing. Common symptoms during an asthma attacks include coughing, wheezing, tightness in the chest and shortness of breath. Severe asthma attacks can be fatal. People with a family history of asthma are more likely to have the condition. While there is no cure for asthma, proper medical care and a management plan can help to maintain quality of life for people living with asthma. There are different types of asthma, each with their own triggers and management plans. Type Description Exercise-induced Bronchoconstriction (EIB), or Exercise-induced Asthma (EIA) Some people only experience asthma symptoms during exercise. Exercise-induced asthma causes the narrowing of airways during exercise, which restricts the flow of air to and from the lungs. Cold, dry air tends to exacerbate symptoms, while warm, humid air may reduce symptoms. People with exercise-induced asthma should work with their doctor to create a management plan that still allows them to exercise while keeping their symptoms under control. Allergic Asthma Allergic asthma is the most common form of asthma. It is triggered by inhaling allergen particulates, such as dust mites, pollen, pet dander, or mold. The bodyâs reaction to the allergens causes inflammation that results in coughing, wheezing, and other symptoms of asthma. Occupational Asthma Occupational asthma is caused by the frequent inhalation (breathing) of gases, fumes, dust, or other harmful substances in the workplace. Employees working in the chemical or petroleum industries are frequently exposed to chemicals such as Sulphur dioxide or hydrochloric acid, and may develop occupational asthma after prolonged exposure. Childhood Asthma Childhood asthma is usually developed before age 5. It is a condition that affects millions of children. It is vital that childhood asthma is properly controlled to prevent damage to the developing lungs Risk factors: â¢ Allergies â¢ Family history â¢ Frequent respiratory infections â¢ Low birth-weight â¢ Second-hand smoke â¢ Residing in a low-income, urban environment

Asthma symptoms that are triggered by exposure to pollen, pet dander, mold, or dust mites is indicative of which of the following types of asthma:

Occupational asthma

Childhood asthma

Allergic asthma

Exercise-induced asthma