Question

question 7 (2.5 points) by what means is lymph fluid pushed forward through the lymph vessels? a central pump dedicated to the lymphatic system a system of valves in the lymph vessels the contractions of skeletal muscles and movements of breathing the heart, which circulates both blood and lymph

Explanation:

The lymphatic system lacks a central pump like the heart for the circulatory system. Lymph fluid is propelled by the contractions of skeletal muscles during movement and the changes in thoracic pressure during breathing. Valves in lymph vessels prevent back - flow but do not directly push the fluid forward. The heart circulates blood, not lymph.

Answer:

C. The contractions of skeletal muscles and movements of breathing