Which system is affected when tobacco reduces the flow of oxygen to the brain potentially leading to a stroke? a. circulatory stystem b. excretory system c. respiratory system d. nervous system

Explain the sliding filament method

During his workout yesterday, anthony pushed himself by lifting heavier weights. today he is feeling good, but his muscles are sore. what principle is at work in this situation? a. specificity b. progression c. overload d. reversibility

Which of the following must be treated under the care of a physician and is mainly considered a medical condition? a. scoliosis b. lordosis c. kyphosis d. all of the above