What muscles attach to the thoracic spine?

May 26, 2019 Off By idswater

What muscles attach to the thoracic spine?

Thoracic vertebrae provide attachment points for numerous muscles: erector spinae, interspinales, intertransversarii, latissimus dorsi, multifidus, rhomboid major, rhomboid minor, rotatores, semispinalis, serratus posterior superior/inferior, splenius capitis, splenius cervicis, and trapezius.

What muscles attach to the Modiolus?

In general, nine muscles attach to modiolus: Buccinator, risorius, orbicularis oris, depressor anguli oris, depressor labii inferioris, zygomaticus major, platysma pars modiolaris, levator anguli oris and mentalis. Most of these muscles have dermal terminations [4].

What is attached to the vertebrae in the thoracic area?

The Vertebral Column and Spinal Meninges The thoracic vertebrae lie in the posterior wall of the thorax with twelve pairs of ribs attached to them. Thoracic vertebrae have bodies of intermediate size.

What are Buccolabial muscles?

Muscles of the mouth. The muscles of the mouth, or buccolabial group of muscles, is a broad group of muscles that form a functional compound that controls the shape and movements of the mouth and lips.

How do you strengthen levator labii superioris?

Levator labii superioris exercises To focus on this muscle, stand in front of a mirror so you can see the movement of the exercise. Pucker your lips while bringing your upper lip up towards your nose. Hold this position for ten seconds then release. Repeat the motion a total of ten times.

What are the muscles that elevates the upper lip?

The levator labii superioris muscle is a three-part muscle that provides facial expression and dilation of the mouth. It courses alongside the lateral aspect of the nose and its primary function is elevation of the upper lip.

Are facial muscles smooth muscles?

The facial muscles are a group of striated skeletal muscles supplied by the facial nerve (cranial nerve VII) that, among other things, control facial expression. These muscles are also called mimetic muscles.

How does the semispinalis thoracis support the vertebral column?

With these attachments, semispinalis thoracis aids several movements of the vertebral column; specifically extension, lateral flexion and rotation of the thoracic spine. Acting together with semispinalis capitis and cervicis, it supports the same movements occuring at the head and neck. Key facts about the semispinalis thoracis muscle.

What are the muscle attachments of the thoracic vertebrae?

Common Tendon (Tla), Transverse Processes Of Upper Five Thoracic Vertebrae Insertion Lower 9 Ribs, TVPs Of Thoracic And Cervical Vertebrae, Mastoid Process of Temporal Bone Actions Bilateral: Extend Vertebral Column Unilateral: Laterally Flex Vertebral Column To Same Side Iliocostalis Origin

Where are The rotatores and levatores located in the thoracis?

Sitting deep to semispinalis thoracis are the rotatores and levatores costarum, while superficially it is covered by the spinalis thoracis (erector spinae group). Just like all the spinotransverse muscles, semispinalis thoracis is innervated by the medial branches of the posterior rami of adjacent spinal nerves .

How many fascicles are there in semispinalis thoracis?

Semispinalis thoracis consists of five fascicles bridging over five to six vertebral levels between the transverse and spinous processes of certain cervical and thoracic vertebrae. With these attachments, semispinalis thoracis aids several movements of the vertebral column; specifically extension, lateral flexion and rotation of the thoracic spine.