The thoracic and sacral curves are the primary curves, as they are obvious at birth. The cervical and lumbar curves are secondary as they are modifications on the foetal position.
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The cervical and lumbar curvatures are the two spinal curvatures that are obvious at birth. The thoracic and sacral curvatures develop later as the baby grows and begins to sit and stand.
Thoracic and sacral
Thoracic and sacral curves are present at birth also known as primary curves
Both the thoracic and sacral curvatures are considered "primary" curvatures for this reason.
it is a sign of sickness or dieingness which you whould die or have an infection.
Yes, the cervical curvature is considered a primary curvature of the spine. It is present at birth and develops during fetal stages. The primary curvatures are the thoracic and sacral curvatures, while the cervical and lumbar curvatures are secondary and develop with posture.
The brain and the spinal cord are the two main organs of the central nervous system. The brain is responsible for processing information, while the spinal cord is involved in transmitting messages between the brain and the rest of the body.
The two parts of the central nervous system are the brain and the spinal cord. The brain is responsible for processing information and coordinating body functions, while the spinal cord helps transmit messages between the brain and the rest of the body.
Mars and Earth are the two obvious ones.
The central nervous system is made up of the brain and spinal cord. The brain is responsible for processing information, while the spinal cord acts as a pathway for transmitting messages between the brain and the rest of the body.