they improved oxygenation of tissues
they improved oxygenation of tissues
The progressive evolution of respiratory and circulatory systems in vertebrates involves adaptations that improve oxygen delivery to tissues. For example, the transition from gills to lungs allowed terrestrial vertebrates to breathe air more efficiently, while the development of a double circulatory system (pulmonary and systemic circuits) in mammals enhances oxygen distribution throughout the body. These evolutionary changes have contributed to the success of vertebrates in diverse environments.
Of or pertaining to respiration; serving for respiration; as, the respiratory organs; respiratory nerves; the respiratory function; respiratory changes.
In many cases, changes in the appearance of fingernails can be the first sign of an undiagnosed medical problem such as a circulatory problem, respiratory disorder, iron deficiency anemia, or thyroid disease. Such signs as ridges in the fingernails, discolorations, and changes in the contours of the nail base can be important signs of illness. With that in mind, maybe we should be scrutinizing our fingernails more often! Consult your doctor.
autonomic nervous system
respiratory
The diaphragm is a dome-shaped muscle located at the base of the thoracic cavity that plays a crucial role in the respiratory system. When it contracts, it flattens and creates negative pressure in the thoracic cavity, allowing air to be drawn into the lungs during inhalation. While it primarily functions in respiration, it indirectly influences the circulatory system by facilitating venous return of blood to the heart as it changes pressure in the thoracic cavity. Thus, the diaphragm is essential for effective breathing and supports overall circulatory function.
Humans will continue to suffer from respiratory diseases which leads to circulatory diseases and the ozone 'hole' will become larger and larger and the temperature of earth will continue to rise. Though humans compensate over time to the enironmental changes, pollution is growing faster than accommodation.
the population on earth ad would be over six billon
Disease, blockage, wear & tear (age), environmental changes.
cilia regain normal function
in order to regulate the flow of blood to the body's organs as well as maintain homeostsasis