Got a tricky question? Receive an answer from students like you! Try us!

Conceptual Model - Essay Example

Only on StudentShare
Masters
Author : irunolfsson
Essay
Science
Pages 4 (1004 words)

Summary

The respiratory system is composed mainly of the lungs, airways, diaphragm, windpipe, throat, mouth, and nasal passages. The portal of entry of air is in the nasal cavity. The primary function of the respiratory system is to supply the blood with oxygen in order for the blood to deliver oxygen to all parts of the body…

Extract of sample
Conceptual Model

It protects the body against disease-causing organisms and toxic substances inhaled with air". (Encarta 2005)
Using several instruments and random sampling method for smokers, non-smokers and asthmatic person, the respondents are being measured with their adult lung volumes using a spirometer. The peak expiratory flow rate is also measures as well as the respondents vital capacity using a vitalograph.
The aim of this practical is to introduce the student to measuring human lung volumes, together with observing the control of respiration. Respiration refers to the overall gaseous exchange between the atmosphere, blood and body cells. In this context, respiration is taken to mean the movement of air into (inspiration) and out of (expiration) of the lungs. More accurately, inspiration and expiration is termed ventilation. An inspiration followed by expiration is called one respiration. The number of respirations per minute gives the respiratory rate (RR). A healthy adult averages a respiratory rate of between 12 to 18 respirations per minute. During this respiratory process, various amounts of air are exchanged between the lungs and the atmosphere. ...
Download paper
Not exactly what you need?

Related Essays

Soft Systems Methodology
This action research-based, interpretive approach is strongly influenced by Vickers' (1968, pp.59,176) description of the importance of appreciative systems in dealing with human complexity. Checkland (1981), and Checkland and Scholes (1990) have attempted to transform these ideas from systems theory into a practical methodology that is called Soft Systems Methodology (SSM).…
14 pages (3514 words)
Model Predictive Control
By having access to data for several previous occurrences, it is more likely that a person familiar with the process can discern important patterns and identify the underlying cause(s) for the abnormal condition. Suppose that it is desired to analyze an abnormal condition, which is represented by multivariate time-series data for key process variables (e.g., measurements of controlled and manipulated variables for several interacting control loops). The objective is to locate similar, previous episodes (if they exist) in a large historical database, using an unsupervised learning technique.…
18 pages (4518 words)
Metal Toxicity
Metal toxicity of water may be defined as the dissolved metal concentration per unit volume of water. Various models have been developed to predict acute metal toxicity of water. Following are the most used and most satisfactory models used for acute metal toxicity prediction:…
4 pages (1004 words)
Solow Growth Model
The second assumption was that if you hold technological progress and D/L is going down as we deplete the resources in a country, K/L may be going up because of capital accumulation, if capital accumulation was allowed to take place in an economy its possible for Y/L to remain constant or even increase and this will lead to economic growth.…
4 pages (1004 words)
'Level of processing' model of memory
Eysenck tested this model to see if it could explain reported differences between young and old people in their ability to recall verbal material. Eysenck predicted that there would be an interaction between age and recall condition, more specifically that younger participants would recall more words when using deeper levels of processing.…
3 pages (753 words)