STS040-211-019 (5-14 June 1991) --- Astride the bicycle ergometer, astronaut Rhea Seddon, mission specialist, breathes into the cardiovascular re-breathing unit during the exercise phase of an experiment. The investigation, In-flight Study of Cardiovascular Deconditioning (Experiment 066), was developed by Dr. Leon E. Farhi of the State University of New York in Buffalo. It focuses on the deconditioning of the heart and lungs and changes in cardiopulmonary function that occur upon return to Earth. By using non-invasive techniques of prolonged expiration and re-breathing, investigators can determine the amount of blood pumped out of the heart (cardiac output), the ease with which blood flows through all the vessels (total peripheral resistance), oxygen used and carbon dioxide released by the body, and lung function and volume changes. Measurements are made both while crew members are resting and while they pedal the exercise bicycle, as Dr. Seddon is doing here. This scene was photographed with a 35mm camera.

STS040-212-004 (5-14 June 1991) --- Astronaut James P. Bagian, STS-40 mission specialist, floats through the Spacelab Life Sciences (SLS-1) module aboard the Earth-orbiting Space Shuttle Columbia. Bagian and six other crew members spent over nine-days in space conducting life sciences research.

STS040-30-008 (5-14 June 1991) --- Astronaut Tamara E. Jernigan, after applying a blood pressure cuff to an experiment, watches it in operation. The experiment is the intravenous infusion pump. The device is being considered for use on Space Station Freedom's Health Maintenance Facility. Dr. Jernigan is one of seven crew members supporting the nine-day Spacelab Life Sciences (SLS-1) mission aboard the Earth-orbiting Space Shuttle Columbia.

STS040-224-005 (5-14 June 1991) --- Astronaut Tamara E. Jernigan, STS-40 mission specialist, conducts an evaluation of the General Purpose Work Station (GPWS) in the Spacelab Life Sciences (SLS-1) module onboard the Earth-orbiting Space Shuttle Columbia. The photograph was taken with a 35mm camera.

STS040-211-020 (5-14 June 1991) --- Vestibular experiment activities were captured onboard Columbia's Spacelab Life Sciences (SLS-1) module in this 35mm scene. Astronaut James P. Bagian, STS-40 mission specialist, is in a rotating chair while wearing an accelometer and electrodes to record head motion and horizontal and vertical eye movements during the rotations. Payload specialist Millie Hughes-Fulford, lower left, assists with the test.