Aseven-year-old boy breaks his tibia and requires immobilization by a hard cast for six weeks until the break heals. a potential consequence of this therapy is atrophy of the a. serratus anterior. b. trapezius. c. pectoralis major. d. gastrocnemius.

Internal feedback works to maintain homeostasis when your a. heart rate decreases as your white blood cells increase b. breathing rate decreases as your red blood cells decrease c. heart rate increases as your liver is cleaning blood d. breathing rate increases as your heart rate increases