- May 6, 2026The posterior scalene inserts on the second rib (unlike the others which insert on the first rib) and is the…
- May 6, 2026Scalenus minimus is an accessory scalene muscle present in approximately 50% of individuals. It contributes to the suprapleural membrane tension…
- May 6, 2026The platysma is a broad subcutaneous sheet covering the anterior neck. Its SMAS connections to the facial musculature make it…
- May 6, 2026Obliquus capitis inferior is the largest suboccipital muscle and the primary rotator of C1 on C2. It is unique in…
- May 6, 2026Obliquus capitis superior connects C1 to the occiput, forming the superolateral boundary of the suboccipital triangle. It is one of…
- May 6, 2026Rectus capitis posterior major is the larger of the two rectus capitis posterior muscles, forming the superomedial wall of the…
- May 6, 2026Rectus capitis posterior minor is the smallest suboccipital muscle, connecting the C1 posterior arch to the occipital bone. Its myodural…
- May 6, 2026Rectus capitis anterior is one of the four prevertebral muscles at the craniovertebral junction. Its short course between C1 and…
- May 6, 2026Rectus capitis lateralis connects the C1 transverse process to the jugular process of the occiput, producing lateral head tilt. It…
- May 6, 2026Splenius cervicis inserts on the upper cervical transverse process posterior tubercles, unlike splenius capitis which inserts on the skull. It…