Here, I explore the anatomy of the pelvic ligaments, their structure, attachments, and how they mature through the decades of a person’s life. Overview These pelvic ligaments bind the ox coxae of the lower extremity to the axial skeleton. They consist of: Progression of Fusion A complex fascial structure wraps the major bony structures of […]
Overview Here, you will find the anatomy and physiology of the splenius cervicis muscle. Splenius cervicis is a broad, flat muscle that wraps around the lateral neck. It anchors in the upper thoracic vertebrae and inserts on the upper cervical vertebrae. This makes it a “jack of all trades, master of none,” as it assists
Overview Splenius capitis is a broad, flat sheet that originates along the mid-line of the neck’s base. It wraps the lateral muscles and inserts onto the lateral base of the skull. Its relationship with the splenius cervicis complicates the anatomy. Origin Insertion Function Innervation Origin Insertion Function Innervation Wikipedia entry for Splenius Capitis Posts Related
This post reviews the anatomy of the posterior suboccipital muscles. Anterior suboccipital muscles are found in this post. The posts related to anterior suboccipital muscles are included in the grid below. The suboccipital muscles attach the atlas and axis to the bottom of the occiput. They secure the head on the atlas and fine-tune the
The anatomy of thoracic outlet structures is complex in several ways. First, many of the bones are both origin and insertion for muscles. Second, several of the muscles have statistically significant variations in cadaver studies. Here, you will find a brief overview of Thoracic Outlet Syndrome followed by a walk-through of the structures from back
Overview Scalene anatomy is more variable than most muscles. They vary in their attachments and size in 40-71% of the reviewed studies. Scalenes are 3 (sometimes 4) muscles on either side of the neck. This is one of those muscles that makes it hard to say which end is the origin and which end is
Here, you will find a functional overview of the anatomy of the serratus posterior superior. I also explore its role as a respiratory muscle. Afterward, I have links to related posts. Anatomy Overview Overview This muscle is the most superficial of the intrinsic back muscles and straps across the erectors, levator costae, and intrinsic spine muscles. Origin
Serratus Posterior Superior – Functional Anatomy Read More »
Serratus Posterior Inferior Origin The spinous processes of T11-L2 Insertion the inferior border of the last four ribs, just lateral to the angle of the rib Function Its position indicates that it should extend and rotate the trunk, as well as assist in breathing, especially when breathing is forceful, or the trunk is contorted. It is,
Serratus Posterior Inferior – Functional Anatomy Read More »
Overview Semispinalis capitis anatomy is significant for managing pain. It is a large muscle that extends the head, perpetuates forward head posture, and squeezes the greater occipital nerve. Origin Insertion Function Nerve The functional anatomy of semispinalis capitis is significant regarding upper cervical pain. It attaches to the occiput and then usually skips the first
Semispinalis Thoracis Semispinalis Thoracis connects T7-T10 to C6-T4 trapping T5-T6 in the middle. Origin – transverse processes of T6-T10 Insertion – Spinous processes of T1-T4 Function – Extension and some rotation of the thoracic vertebrae. Wikipedia Entry for Semispinalis muscles
