1. Many people have observed a correlation between the length of the upper and lower limbs and the height (height for this lab means overall height of the subject) of an individual. For example, a person who has long upper limbs (the arm, forearm, and hand combined) tends to be tall. Make some visual observations of other people in your class to observe a possible correlation.

2. From such observations, the following hypothesis is formulated: The length of a person's upper limb is equal to 0.4 (40%) of the height of the person. Test this hypothesis by performing the following experiment.

3. In this experiment, use a meter stick to measure an upper limb length of ten subjects. For each measurement, place the meter stick in the axilla (armpit) and record the length in centimeters to the end of the longest finger (see fig. 1.1). Obtain the height of each person in centimeters by measuring them without shoes against a wall (see fig. 1.2). The height of each person can be calculated by multiplying each individual's height in inches by 2.54 to obtain his/her height in centimeters. Record all your measurements in Part A of Laboratory Report 1.

4. The data collected from all of the measurements can now be analyzed. The expected correlation

Figure 1.2 Measurement of height.

Figure 1.2 Measurement of height.

between upper limb length and height is determined using the following equation:

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This ebook provides an introductory explanation of the workings of the human body, with an effort to draw connections between the body systems and explain their interdependencies. A framework for the book is homeostasis and how the body maintains balance within each system. This is intended as a first introduction to physiology for a college-level course.

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