Nerves of the torso

Nerves of the Torso is a broad term that encompasses the complex network of nerves that innervate the structures of the torso. This network includes the spinal nerves, intercostal nerves, and the autonomic nervous system which is further divided into the sympathetic nervous system and the parasympathetic nervous system.

Spinal Nerves

The spinal nerves are part of the peripheral nervous system and are responsible for transmitting information between the central nervous system and the rest of the body. They are named according to the region of the spine from which they emerge: cervical, thoracic, lumbar, sacral, and coccygeal.

Intercostal Nerves

The intercostal nerves are part of the somatic nervous system and are responsible for providing sensory and motor innervation to the thoracic region. They are named according to their location between the ribs (intercostal spaces).

Autonomic Nervous System

The autonomic nervous system (ANS) is responsible for controlling the involuntary functions of the body. It is divided into the sympathetic nervous system and the parasympathetic nervous system.

Sympathetic Nervous System

The sympathetic nervous system is responsible for the body's 'fight or flight' response. It prepares the body for action by increasing heart rate, dilating pupils, and slowing digestion.

Parasympathetic Nervous System

The parasympathetic nervous system is responsible for the body's 'rest and digest' response. It conserves energy by slowing the heart rate, constricting pupils, and stimulating digestion.

See Also

• Nervous system
• Peripheral nervous system
• Central nervous system
• Somatic nervous system
• Autonomic nervous system

References

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