What are the superficial muscles of the back?
The superficial back muscles are the muscles found just under the skin. Within this group of back muscles you will find the latissimus dorsi, the trapezius, levator scapulae and the rhomboids.
What are the superficial muscles?
Superficial muscles are close to the surface of the skin. Muscles which lie closer to bone or internal organs are called deep muscles.
What are the superficial Epaxial back muscles?
Epaxial muscles include other (dorsal) muscles associated with the vertebrae, ribs, and base of the skull. In humans, the erector spinae, the transversospinales (including the multifidus, semispinalis and rotatores), the splenius and suboccipital muscles are the only epaxial muscles.
What is the major superficial lower back muscle?
Levator scapulae is a relatively short and thin strap muscle of the superficial back compartment.
What Innervates superficial back muscles?
Nerves
- Brachial Plexus.
- Axillary Nerve.
- Musculocutaneous Nerve.
- Median Nerve.
- Radial Nerve.
- Ulnar Nerve.
Is erector spinae deep or superficial?
The erector spinae muscle, also known as sacrospinalis and extensor spinae in some texts is from the deep muscles of the back. It lies superficial to the transversospinales muscle group and deep to the intermediate group of back muscles (serratus posterior superior and inferior).
Where are Epaxial muscles located?
spine
Epaxial muscles (epi = upon & axial = axis) are muscles located dorsally along the spine. They are innervated by dorsal branches of spinal nerves and function to extend the vertebral column. Generally, epaxial musculature consists of fascicles running from one vertebra to neighboring vertebrae.
How many superficial muscles are in the body?
There are around 650 skeletal muscles within the typical human body. Almost every muscle constitutes one part of a pair of identical bilateral muscles, found on both sides, resulting in approximately 320 pairs of muscles, as presented in this article.
How many superficial back muscles are there?
The two muscles in the superficial layer include the splenius cervicis and splenius capitis. They help with movements of the shoulder and neck. The intermediate muscles are the erector spinae. They include the longissimus, iliocostalis, and spinalis muscles.
What is the deepest muscle of the back?
The intermediate layer contains the large erector spinae muscles which are sometimes called the long muscles of the back. This muscle group is the largest of the deep back muscles and lies on either side of the vertebral column between the spinous processes of the vertebrae and the angles of the ribs.
How do you stretch your spinal erectors?
HOW: While seated and sitting up, take one arm and reach for the outside of the opposite ankle. Push into the leg to get more of a stretch Hold that rotational stretch, relax, and repeat on both sides. Inhale at the top and exhale as you’ve reached the most stretch.
Do Epaxial muscles flex or extend the spine?
Epaxial muscles also play an important role during leaping by facilitating sagittal plane flexion and extension of the spine (Hall-Craggs, 1965a,b; Jenkins, 1974; Bennet-Clark, 1977; Fleagle, 1977; Aerts, 1998; Sargis, 2001; Walker, 2005; James et al. 2007).