Featured in PASCO’s College Biology Instructor Guide

College Biology Instructor Guide

(PS-3800A)

College Instructor edition with 26 experiments covering introductory and general biology topics.

Circulatory System

Lab Summary

Use a sphygmomanometer or blood pressure monitor and a heart rate sensor to measure the changes in the blood pressure and heart rate of a patient in different body positions. Use a temperature probe to measure the changes in heart rate of Daphnia magna under different temperature conditions.

 

Theory

Students explore the relationship between changes in blood pressure and heart rate relative to changes in body position. Students:

  • Explore the effects of exercise on heart rate.
  • Determine a human’s fitness index.
  • Analyze cardiovascular data collected by the entire class.
  • Observe the effects of temperature on the heart rate of an ectothermic organism.

Method

Students gain experience conducting the following procedures:

  • Using a sphygmomanometer to measure a subject's reclining and standing blood pressure.
  • Measuring heart rates under four different conditions. The heart rate is analyzed and related to an index of relative fitness.
  • Measuring the changes in heart rate of a Daphnia magna under different temperature conditions.

Sensors / Equipment Used:

PASPORT Hand Grip Heart Rate Sensor

(PS-2186)

An easy way to measure resting and exercise heart rate without the restrictions of belts or clips. For use with PASPORT Interfaces.

PASPORT Quad Temperature Sensor

(PS-2143)

Allows any combination of our stainless steel, fast response or skin/surface temperature probes for a wide variety of temperature measurement. For use with PASPORT Interfaces.

kena Digital Microscope

(SE-7236)

USB connected and powered for experiments in the classroom or the field.

Materials Used:

Container of room temperature water 
Container of warm water 
Daphnia Magna, large, living - 1 or 2
Depression slide - 2
Disposable pipet  
Petri Dish 
Small container of crushed ice or an ice pack
Small rubber band - 2

The Associated Bundle:

College Biology Bundle

(PS-2926B)

A complete probeware bundle designed for PASCO's College Biology curriculum

Interface Required

This experiment may require software and an interface for data collection.