BPK 306 Lecture Notes - Bronchiole, Gas Exchange, Frataxin

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amethystworm242

1 Dec 2011

School

Simon Fraser University

Department

Biomedical Physio & Kines

Course

BPK 306

Professor

Mike Walsh

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Document Summary

Introduction: primary fxn of pulmonary system, body enhances rate gas exchange, study table of abbreviations, gas exchange (o2 uptake and co2 removal @ appropriate fxning rates) Pulmonary structure and fxn: anatomy of the respiratory system, consists of nose, pharynx, larynx, trachea, bronchi, and lungs, trachea keep larger airways open, higher order bronchi, almost completely surrounded by rings of cartilage. Cartilage helps: as bronchi gets smaller, cartilage gradually replaced by sm. Designed to enhance surface area for diffusion. About 23 bifurcations from trachea to alveoli. Bronchi primary, secondary, tertiary bronchi terminal and respiratory bronchioles alveolar ducts alveoli. 300 million alveoli = 1 tennis court of sa. Each alveolus enveloped by a bed of capillaries = incr sa. 80% alveolar wall available for gas exchange when all caps are open. Only one rbc can fit through at a time. O2 diffusion distance minimized: thickness reduction: Alveoli is 1 layer of epithelial tissue thick.

Related Questions

Besides the lungs, are there any other structures (e.g., larynx, trachea, bronchus, bronchioles, pleura) of the respiratory system that are affected by tuberculosis? If so, which structures are affected?

taupeyak758

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

Which sequence correctly traces the path that oxygen takes from the atmosphere to the lungs

Mouth pharynx, trachea, bronchi, alveoli

Larynx, esophagus, trachea, bronchi, alveoli

Nose, bronchi, larynx, trachea, lung

Epiglottis, trachea, cricoid, bronchi, alveoli

A 19-year-old female began chocking after eating a hot dog. When you first arrived on scene , she was coughing and drooling. Now, she is drowsy, slow to respond, and unable to cough

Perform abdominal thrusts

Perform back blows

Coach her to cough again

Perform chest thrusts

A 68-year-old female complains of shortness of breath and fatigue. Symptoms worsen at night when she tries to rest. Lung sounds are diminished in all lobes. Which statement indicates the patient is suffering from CHF rather than pneumonia

âI have had a fever the past several days.â

âI take nebulized treatments to help me breathe.â

I have been coughing up green phlegm

I feel like Iâm drowning when I lie down.

Proper technique to suction your patientâs air way includes

Suctioning while gently inserting the catheter

Inserting the suction catheter as deeply as possible

Applying suction continuously until the airway is clear

Oxygenating and ventilating before and after suctioning.

A patient has a history of chronic pulmonary disease. Before assisting him in self-administering his inhaler, you

Have the patient cough forcefully

Check his blood pressure

Spray some medication in the air

Shake the medication vigorously

A 65 year old male is having trouble breathing. He is moderately overweight and has been coughing up yellowish phlegm. He smokes two packs of cigarettes a ay and reports having episodes like this for many years

Whooping cough

Chronic bronchitis

Pulmonary edema

Status ashmaticus

A 64 year old male complains about dyspnea and is coughing up blood tinged sputum. Upon auscultation, you notice crackles bilaterally.

Emphysema exacerbation

Pulmonary edema

Pulmonary embolism

Esophageal varices

What nerve primarily controls respiration

Phrenic

Intercostal

Vagus

Thoracic

Which of he following can be present with a sudden onset of difficult breathing and diminished breath sounds

Pertussis

Emphysema

Pneumothorax

Pneumonia

A semi-conscious 34 year old male begins to gag after insertion of an OPA

Suction his air way

Encourage him to cough

Remove the airway and attempt a nasal airway

Remove the airway and insert a smaller size airway

BPK 306 Lecture Notes - Bronchiole, Gas Exchange, Frataxin

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