★ Immune System Quiz
The system that sends electrical signals to the heart that tell it to beat.
A. respiratory
B. lymphatic
C. nervous
D. digestive
Select your answer:
Topics:
Organization of Systems Prehabilitation and Conditioning Pathogens - Bacteria and Viruses Effect of Exercise on Cardio Respiratory System & Muscular Human Eye Health Issues and Concerns Skeletal System Vocabulary Bacteria & Disease Neurological Disorders Eczema Healthcare Systems and Settings Health-Wellness-Illness Psychiatry Science Reproduction Human Circulatory SystemOther quiz:
PBS Routine Testing › ViewWhich of the following would be used to test the external anatomy of the eye?
A. Octoscope
B. Ophthalmoscope
C. Stethoscope
D. sphygmomanometer
Viruses › View
Why is it that a virus that infects a human is not likely to infect a dog or a cat?
A. viruses only infect humans
B. viruses are specific to a host
C. dogs and cats do not get diseases
D. viruses do not infect living things