Splenius cervicis muscle

==Splenius Cervicis Muscle ==

The splenius cervicis muscle is a muscle located in the back of the neck. It is part of the splenius muscle group, which also includes the splenius capitis muscle. The splenius cervicis muscle plays a crucial role in the movement and stabilization of the neck.

Anatomy

The splenius cervicis muscle originates from the spinous processes of the T3 to T6 vertebrae. It inserts into the transverse processes of the C1 to C3 vertebrae. The muscle fibers run obliquely upward and laterally.

Innervation

The splenius cervicis muscle is innervated by the posterior rami of the lower cervical spinal nerves.

Blood Supply

The blood supply to the splenius cervicis muscle is primarily provided by the occipital artery and the transverse cervical artery.

Function

The primary functions of the splenius cervicis muscle include:

• Extension of the neck
• Lateral flexion of the neck
• Rotation of the neck to the same side

These actions are essential for various movements and activities involving the head and neck.

Clinical Significance

Injuries or strain to the splenius cervicis muscle can result in neck pain and limited range of motion. Conditions such as cervical spondylosis and whiplash can affect this muscle, leading to discomfort and functional impairment.

Related Muscles

• Splenius capitis muscle
• Semispinalis capitis muscle
• Longissimus capitis muscle
• Trapezius muscle

See Also

• Muscles of the neck
• Cervical vertebrae
• Posterior rami of spinal nerves