Occipitalis is part of a larger structure called the epicranius or occipitofrontalis muscle. The epicranius consists of the frontalis muscle and the occipitalis muscle which are joined by a fascial structure called the galea aponeurotica. The Occipitalis located on the posterolateral cranium. It has notable variations in area and thickness from person to person. Inferiorly, …
These people complain of tingling and numbness on the outside of their upper thigh. They often poke at it like it will shake it loose or that they can wake it up, like the way one might shake or move your arms when they are “falling asleep.” This tends to be a broad area that …
The Tensor fascia lata is a small fusiform muscle that, with some variance, tapers at the ends. Origin – the anterior lip of the crest of the ilium Insertion – lateral, condyle of the tibia via the IT band The TFL tenses the fascia lata, stabilizing the hip joint by keeping the head of the …
The fascia lata is the deep fascia that wraps the outer thigh. It attaches superiorly to the crest of the Ilium and inguinal ligament continues onto the pubic rami, ischial tuberosity, sacrotuberous ligament, coccyx and sacrum. Distally it thickens as it attaches to the proximal tibia. It offers elastic stability, much like a compression stocking …
Iliotibial Tract and Fascia Lata – Functional Anatomy Read More »
Sternocleidomastoid is a two headed muscle that extends obliquely along the lateral neck. Origin: The sternal head attaches to the superior aspect of the manubrium. The clavicular head attaches to the medial third of the clavicle. Insertion: mastoid process of the temporal bone and lateral third of superior nuchal line of the occiput. Function: Because …
Gluteus minimus is a fan-shaped muscle deep in the lateral hip. It has two distinct heads. A thick head originates more anteriorly on the ilium and inserts closer to the joint capsule on the greater trochanter. It is stronger and better positioned to internally rotate the hip joint. A thin head originates more posteriorly and …
The major osseous structures of the pelvis are wrapped in a complex fascial structure that, like the osseous structures change and evolve as we age. In the first two decades, we have more boney pieces held together by cartilaginous plates that fuse as decades pass. Eventually, in our 4th or 5th decade, all of the …
Splenius Cervicis Anatomy: – This 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 in extension, rotation, side-bending, and strapping things down. Origin – spinous …
Origin – midline fascia over the ligamentum nuchae from C3 – C7 and the spinous processes of T1-T3 Insertion – underneath the SCM on the superior nuchal line of the temporal and occipital bone Function – Contracts during extension and ipsilateral rotation of the head on the neck. Wikipedia entry for Splenius Capitis
This post covers the anatomy of the suboccipital muscles, including the anterior suboccipital muscles. which are often described separately. The suboccipital muscles attach the atlas and axis to the bottom of the occiput. They secure the head on the atlas and fine-tune movement of the cranium on the atlas and axis. The posterior suboccipital muscles …
