These are chemicals in the brain triggered by physical activity that give us a sense of well-being; they are “feel good chemicals”.
A. Sweets
B. Oxygen
C. Endorphins
D. Carbon Dioxide
Select your answer:
Topics:
Blood Formation and Clotting Trauma Cardiovascular Nursing Cardiac & Diseases of Blood Flow Cardio and Resp Disorders Endocrine System Introduction to Kinesiology Musculoskeletal System Autism Awareness HCMA - Hematology Circulatory and Respiratory System Benefits of Physical Activity Blood Typing Epidemiology Cardiovascular Adaptation RefresherOther quiz:
Inheritance › ViewMeiosis makes sperm and egg cells. In humans, sperm and egg cells each have _____ chromosomes. Therefore a fertilized human egg cell (sperm and egg cell combined) would create a cell with _____ chromosomes.
A. 23, 46
B. 46, 23
C. 2, 4
D. 50, 100
Muscle & Nerve Tissue › View
Which cell type makes up only 10% of nerve tissue?
A. neuron
B. neuroglial