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  1. Subcostal muscles: Origin, insertion, innervation, action | Kenhub

    Nov 3, 2023 · Subcostal muscles belong to the accessory respiratory musculature, as their function is to depress the ribs during forced exhalation. This action enables them to pull the …

  2. Subcostal Muscles (Subcostalis): Origin, Insertion, Action, Diagram

    Feb 5, 2024 · The subcostal muscles work similarly to the internal intercostal muscles. They help lower the ribs at the joints, connecting them to the spine (the costovertebral joints), effectively …

  3. Subcostal Muscles | Complete Anatomy - Elsevier

    The subcostal muscles are a group of muscles of the thorax. They consist of short, individual, skeletal muscles that are found in the lower half of the posterior thoracic wall.

  4. Subcostalis muscle - Wikipedia

    Their fibers run in the same direction as those of the intercostales interni. Depresses the ribs to assist in expiration. This article incorporates text in the public domain from page 403 of the …

  5. Subcostal muscles - e-Anatomy - IMAIOS

    The subcostal muscles (Subcostales; Infracostales) consist of muscular and aponeurotic fasciculi, which are usually well-developed only in the lower part of the thorax; each arises from the …

  6. Subcostal Muscles - Location, Function, Diagram

    Subcostal muscles bridge multiple ribs internally, helping draw ribs downward during exhalation. Subcostal muscles are a small group of thoracic wall muscles located on the internal posterior …

  7. subcostal - subjective | Taber's® Cyclopedic Medical Dictionary, …

    subcostal (sŭb-kos′tăl) [sub- + costal] Beneath the ribs or a rib. SEE: subxiphoid.

  8. SUBCOSTAL Definition & Meaning | Merriam-Webster Medical

    The meaning of SUBCOSTAL is situated or performed below a rib. How to use subcostal in a sentence.

  9. The Subcostal Muscles: Which Ribs Do They Attach To?

    May 26, 2025 · The subcostal muscles are a group of muscles that originate from the ribs and play a crucial role in respiratory function and core stability.

  10. Thoracic Muscles - Attachments - Actions - TeachMeAnatomy

    Nov 6, 2025 · The subcostal muscles are most developed in the inferior portion of the thoracic wall. The direction of the fibres is similar to that of the innermost intercostal muscles.