Cerebrospinal fluid (CSF) surrounds the spinal cord, which is also shielded by three protective layers called the meninges (dura, arachnoid and pia mater). The spinal cord lies inside the spinal column, which is made up of 33 bones called vertebrae.
What is along the spinal cord?
The spinal cord consists of bundles of nerve axons forming pathways that carry incoming and outgoing messages between the brain and the rest of the body. The spinal cord contains nerve cell circuits within itself that control coordinated movements such as walking and swimming, as well as urinating.
What are the parts of the spinal cord?
The spinal cord is divided into four different regions: the cervical, thoracic, lumbar and sacral regions (Figure 3.1). The different cord regions can be visually distinguished from one another.
What part of the spine controls the heart?
Thoracic (mid back) – the main function of the thoracic spine is to hold the rib cage and protect the heart and lungs. The twelve thoracic vertebrae are numbered T1 to T12. The range of motion in the thoracic spine is limited. Lumbar (low back) – the main function of the lumbar spine is to bear the weight of the body.
What back problems cause leg pain?
Sciatica is a shooting pain that begins in the lower back, radiates into the buttock and down the back of one leg. The pain is often caused by pressure on the sciatic nerve from a herniated disc, bone spurs or muscle strain (Fig. 1). You play an important role in the prevention, treatment, and recovery of leg pain.
Why is the spinal cord so important?
The spinal cord and the brain together constitute the Central Nervous System. It is an incredibly complex and intricate mesh of nerves. Functioning as the body’s main relay station, the CNS is responsible for all the basic functions of the body, such as breathing, walking, talking, movement, and reflexes.
What are the functions of spinal cord Class 10?
The spinal cord’s major functions include:
- Electrochemical communication. Electrical currents travel up and down the spinal cord and across nerves, sending signals which allow different segments of the body to communicate with the brain.
- Walking. …
What are the three function of the spinal cord?
Sensory, motor, and reflex functions are affected or impeded when the brain can’t transmit impulses past the injury site in the spinal cord.