When Jacob starts running, his legs move faster and his heart rate increases. Which types of muscles are involved in these changes

thrombocytopenia, which is a deficiency in blood platelets, can cause bleeding and bruising in the dermis similar to senile purpura. other possible causes include: exposure to ultraviolet rays and aging skin are common causes of senile purpura. senile purpura may also be a sign of collagen loss in the skin and bones.

the tricuspid valve is present between right atrium and right ventricle