
The muscles over the rib cage are called intercostal muscles. They are the muscles that link your ribs together and enable breathing. They consist of three layers of muscles: external, internal, and innermost. Intercostal muscle strain is usually caused by overexertion or injury during exercise, such as twisting while lifting weights, and can be treated with cold and heat therapy, rest, and pain medications.
| Characteristics | Values |
|---|---|
| Name | Intercostal muscles |
| Location | Between the ribs |
| Function | Stabilise the position of the ribs during respiration |
| Layers | 3 (external, internal, innermost) |
| Treatment | Ice, heat therapy, rest, pain medication, physical therapy |
| Healing Time | Up to 6 weeks |
Explore related products
What You'll Learn

Intercostal muscles
The intercostal muscles comprise several groups of muscles that run between the ribs and help form and move the chest wall. They are divided into three groups, going from superficial to deep: external, internal, and innermost. All three groups of muscles support the rib cage and are accessory respiratory muscles that participate in the process of forced breathing. The external intercostals are the outermost layer and lie directly under the skin. They originate from the lower border of the rib above and insert into the upper border of the rib below. They are responsible for the elevation of the ribs and bending them more open, thus expanding the chest wall during inhalation. The internal intercostals are the intermediate layer, originating from the costal groove near the inferior border of the rib above to the upper border of the rib below. They are responsible for the depression of the ribs and bending them inward, thus decreasing the size of the chest cavity during exhalation. The innermost intercostal muscles are deep layers of the internal intercostal muscles, separated from them by a neurovascular bundle. They cross more than one intercostal space and assist the internal and external intercostals in their function.
Intercostal muscle strain refers to an injury affecting the muscles between two or more ribs. It is almost always the result of overexertion or injury, such as a direct blow to the ribs or torso twisting. Symptoms include sharp pain, stiffness, and difficulty breathing. Treatment may include cold and heat therapy, rest, pain medications, physical therapy, muscle relaxants, and injectable medications.
Mineral-Rich Muscles: The Essential Nutrient Connection
You may want to see also
Explore related products

Serratus posterior superior and inferior
The serratus posterior superior and serratus posterior inferior muscles are two of the muscles that lie over the rib cage. They are part of the intermediate group of extrinsic back muscles and are thought to play a role in respiration.
Serratus Posterior Superior
The serratus posterior superior muscle is located at the thoracic part of the thoracolumbar fascia, which covers the splenius cervicis. It lies deep to the rhomboids and the trapezius muscle. This muscle is innervated by the intercostal nerves T2-T5.
The serratus posterior superior muscle elevates the ribs, supporting inspiration. Pain in the little finger during muscle palpation is a classic sign of issues with this muscle. This pain can be increased by activities that involve lifting objects with outstretched hands, or any other activity that causes the scapula to exert pressure on the muscle.
Serratus Posterior Inferior
The serratus posterior inferior muscle is situated at the junction of the thoracic and lumbar regions. It has a quadrilateral form and is separated from the serratus posterior superior by a wide interval. It arises from the spinous processes of the lower two thoracic and upper two or three lumbar vertebrae. The serratus posterior inferior muscle is broader than the serratus posterior superior. This muscle is innervated by the anterior rami of the T9-T11 spinal nerves and the subcostal nerves (T12).
The serratus posterior inferior draws the lower ribs backward and downward, assisting in the rotation and extension of the trunk. It arises from the vertebrae T11 through L2 and is inserted into the lower border of the 9th through 12th ribs.
Muscle Insertion: Where Are Muscles Attached to Bones?
You may want to see also
Explore related products

Intercostal muscle strain
Intercostal muscles are the muscles that link the ribs together and contribute to breathing. They get their name from the Latin words that mean "between ribs". They consist of three layers of muscles: external, internal, and innermost. The external intercostal muscles are the outermost layer that lies directly under the skin. They originate from the lower border of the rib above and insert into the upper border of the rib below, expanding the chest wall during inhalation. The internal intercostal muscles are the intermediate layer that originates from the costal groove near the inferior border of the rib above and connects to the upper border of the rib below, helping to collapse the lungs during exhalation. The innermost intercostal muscles cross more than one intercostal space and assist the internal and external intercostals in their function.
Diagnosing intercostal muscle strain involves a physical examination to check for limitations of movement and assess areas of tenderness. Imaging tests such as X-rays or MRIs may be ordered to rule out other possible causes of pain, such as a rib fracture or internal organ injury. Treatment for intercostal muscle strain depends on the severity of the injury. Home treatment may be sufficient for mild cases, including rest, ice packs, heat therapy, and over-the-counter pain medications. More severe cases may require physical therapy, muscle relaxants, or injectable medications.
Prevention of intercostal muscle strain involves warming up and stretching before strenuous exercises, staying hydrated, and using proper form when lifting or performing other physical activities. Keeping muscles strong and conditioned for the specific activities in which an individual engages can also help prevent intercostal muscle strain.
Exploring Muscle Contraction: Velocity Dictators
You may want to see also
Explore related products

Intercostal muscle layers
The intercostal muscles are the muscles that occupy the 11 intercostal spaces between the ribs. They are divided into three layers or groups: external, internal, and innermost intercostal muscles. These muscles work together to change the volume of the thoracic cavity during respiration.
The external intercostal muscles are the outermost layer and lie directly under the skin. They originate from the lower border of the rib above and insert into the upper border of the rib below. During inhalation, these muscles pull together to expand the rib cage. This increases the volume inside the lungs, creating suction and pulling air in. The external intercostals are the most superficial intercostal muscles and facilitate forced inspiration.
The internal intercostal muscles form the intermediate layer. They originate from the lateral aspect of the costal groove of the rib above and insert into the superior aspect of the rib below. These muscles work in opposition to the external intercostals. When the rib cage expands during inhalation, the internal intercostals help to collapse the lungs during exhalation. The internal intercostals extend from the rib above to the one below, but in the opposite direction to the external intercostals. They are continuous with the internal oblique muscle of the abdominal wall.
The innermost intercostal muscles are the deepest layer of the thorax wall. They originate from the medial aspect of the costal groove of the rib above and insert onto the internal aspect of the rib below. These muscles are similar in structure to the internal intercostals but are separated from them by the intercostal neurovascular bundle. They are found in the most lateral portion of the intercostal spaces. The innermost intercostals assist the internal and external intercostals in their function, aiding in forced expiration.
Intercostal muscle strains can occur due to overexertion or injury during activities such as twisting, lifting weights, or a direct blow to the ribs. Symptoms include sharp pain, stiffness, and mobility difficulties. Treatment typically involves rest, ice, heat therapy, and pain medications, with more severe cases requiring physical therapy, muscle relaxants, or injectable medications.
Massage Therapy: Can It Boost Muscle Fiber Growth?
You may want to see also
Explore related products

Intercostal muscle treatment
Intercostal muscles are the muscles that link your ribs together and are essential for breathing. They are divided into three layers: external, internal, and innermost. The outermost layer of muscles lies directly under the skin and expands the chest wall during inhalation. The intermediate layer helps to collapse the lungs during exhalation. The innermost layer crosses more than one intercostal space and assists the internal and external intercostals in their function.
Intercostal muscle strain refers to an injury affecting the muscles between two or more ribs. It is almost always the result of overexertion or injury and causes sharp, direct pain, stiffness, and mobility difficulties. Treatment for intercostal muscle strain involves the following:
- Cold and heat therapy: Applying an ice pack or cold pack, followed by heat therapy using a warm bath, heating pads, or adhesive heat wraps.
- Rest: Limiting all physical activity for a few days to allow time for the muscle strain to recover.
- Pain medications: Taking over-the-counter (OTC) pain medications such as acetaminophen or ibuprofen to reduce swelling and pain.
- Physical therapy: Once the inflammation has reduced, physical therapy may be recommended to focus on pain relief modalities, stretching, strengthening exercises, improving posture, and breathing exercises.
- Muscle relaxants: In cases of acute severe pain, muscle relaxant medications may be prescribed for a short-term effect to reduce muscle tension and spasms.
- Injectable medications: In some cases, injectable medications such as corticosteroids and lidocaine may be required.
It is important to note that diagnosing intercostal muscle strain involves a physical examination by a healthcare professional. Imaging tests like ultrasound or MRI scans may also be ordered to rule out other injuries, such as a fractured rib. If you suspect an intercostal muscle strain, it is advisable to seek medical advice for a proper diagnosis and treatment plan.
Protein's Power: Preventing Muscle Loss
You may want to see also
Frequently asked questions
The muscles over the rib cage are called intercostal muscles.
There are three layers of intercostal muscles: the external intercostals, the internal intercostals, and the innermost intercostals.
The intercostal muscles link each rib to its neighbour, changing the size of the space inside the rib cage and helping with breathing.








































