Karen was studying for her biology exam when she came across the term ‘gate control theory’. She asked her friend Olivia, ‘What is the gate control theory?’
A. Olivia replied, ‘It’s a theory that suggests specific nerve fibers are responsible for transmitting pain signals.’
B. Olivia replied, ‘It’s a theory that suggests there is a ‘gate’ in the spinal cord that can either allow or block pain signals.’
C. Olivia replied, ‘It’s a theory that explains how pain signals are processed in the brain.’
D. Olivia replied, ‘It’s a theory that proposes the brain can regulate the intensity of pain signals.’
Select your answer:
Topics:
Body Systems & Anatomical Terms Human Body Warm up The Vascular System and Blood Flow Human Genetics Fish Health Management Disease Prevention Histology HS Burns and Skin Cancer Soldiers of Defense Digestive and Circulatory System Pathology Endocrine Organelles Nervous System Functioning Hematologic SystemOther quiz:
Children Well-being › ViewAll health conditions that are a result of inherited family factors appear at birth.
A. TRUE
B. FALSE
Circulatory and Lymphatic System › View
Select the correct process of blood clotting:
A. Blood Vessel is punctured -> platelets and damaged tissue cells release prothrombin activator, which initiates a cascade of enzymatic reactions -> fibrin threads form and trap red blood cells -> platelets congregate and form a plug
B. Blood Vessel is punctured -> fibrin threads form and trap red blood cells -> platelets congregate and form a plug -> platelets and damaged tissue cells release prothrombin activator, which initiates a cascade of enzymatic reactions
C. Blood Vessel is punctured -> platelets congregate and form a plug -> platelets and damaged tissue cells release prothrombin activator, which initiates a cascade of enzymatic reactions -> fibrin threads form and trap red blood cells