Which nerve roots provide sensation to the abdominal wall?

Which nerve roots provide sensation to the abdominal wall?

At the mid-axillary line, the intercostal nerves and subcostal nerve give off lateral cutaneous branches, with T7 and T8 predominantly supplying sensation to the inferior lateral thoracic wall and T9 to T12 predominantly supplying sensation to the lateral abdominal wall.

How many nerve Innervations does the abdominal wall have?

Muscles of the anterior abdominal wall are supplied by lower six thoracic nerves, the iliohypogastric nerve and the ilioinguinal nerve. Test yourself on the neurovasculature of the anterior abdominal wall with our quiz.

What is the neurovascular plane of the abdominal wall?

The main trunks of the intercostal nerves pass anteriorly from the intercostal spaces and run between the internal oblique and transversus abdominis muscles. The plane between these muscles, known as the neurovascular plane, corresponds with a similar plane in the intercostal spaces.

What nerves affect the abdominal muscles?

The abdominal wall nerves control the majority of these core muscles and provide feeling to the abdominal skin and groin areas. Four major nerves are largely responsible for these actions, including the thoraco-abdominal (T7-T11), subcostal (T12), iliohypogastric (T12-L1), and ilioinguinal (L1) nerves.

What nerve Innervates the abdominal wall?

The anterolateral abdominal wall is innervated by the intercostal nerves (T6-‐T11), the subcostal nerve (T12) and ilioinguinal/iliohypogastric nerves (L1).

What nerve controls the abdomen?

vagus nerve, also called X cranial nerve or 10th cranial nerve, longest and most complex of the cranial nerves. The vagus nerve runs from the brain through the face and thorax to the abdomen.

What are the muscles of the posterior abdominal wall?

The posterior abdominal wall primarily serves as protection for the retroperitoneal organs. It is mostly muscular contributed by the diaphragm, paraspinal, quadratus lumborum, iliacus, and psoas muscles.

What nerves innervate the viscera?

The viscera receive dual sensory innervation. The majority of visceral sensory fibres terminate in the spinal cord but sensory fibres contained in the vagus and pelvic nerves, which terminate in the brain stem and lumbosacral spinal cord, respectively, also innervate the same visceral organs.

What does nerve pain feel like in abdomen?

The acute pain is described as localized, dull, or burning, with a sharp component (usually on one side) radiating horizontally in the upper half of the abdomen and obliquely downward in the lower abdomen. The pain may radiate when the patient twists, bends, or sits up.

What are deep abdominal muscles?

Transversus abdominis is the deepest of the abdominal muscles, it is an important core muscle and its primary function is to stabilise the lumbar spine and pelvis before movement of the lower and /or upper limbs occur.

What are the major nerves in the abdominal wall?

Thoraco-abdominal nerves . The anterior divisions of the seventh, eighth, ninth, tenth, and eleventh thoracic intercostal nerves are continued anteriorly from the intercostal spaces into the abdominal wall; hence they are named thoraco-abdominal nerves (or thoracicoabdominal intercostal nerves).

What causes abdominal muscle pain?

Abdominal strains are the most common cause of stomach muscle pain, though other injuries or conditions can cause pain in the stomach region. Overuse commonly causes pain in the stomach muscles as well, and people who do not use the muscles frequently may feel pain when those muscles are suddenly used more than normal.

What causes pain in the lower abdomen?

Less common but more serious causes of right lower abdominal pain include appendicitis, which may be associated with nausea, vomiting, fever and loss of appetite. A bowel obstruction can also cause pain in this area and occurs when your intestines become blocked.

What is an abdominal nerve block?

The transversus abdominis plane (TAP) block is a peripheral nerve block which anaesthetises the abdominal wall.