What is the myotome for C5?
Conclusion. Suggested dominant myotomes are: C5 for the Del, Isp, BB, and BR, C5/6 for the ECRL, C6 > C7 for the ECRB and PT, and C7 for the TB and FCR.
What is the dermatome of C5?
The C5 dermatome covers the outer part of the upper arm down to about the elbow. C6 helps control the wrist extensors (muscles that control wrist extension) and also provides some innervation to the biceps. The C6 dermatome covers the thumb side of the hand and forearm.
What is innervated at C5?
The muscles innervated by C5 are: Serratus Anterior, Deltoid, Ifraspinatus, Teres minor, Teres major, Pectoralis major, Supraspinatus, Biceps, Brachialis, Brachioradialis, Supinator.
What muscles are innervated by C5 and C6?
The lower subscapular nerve (C5-C6) innervates teres major; and both the upper and lower subscapular nerves innervate the subscapularis, the third muscle of the rotator cuff apparatus. The thoracodorsal nerve (C6-C8), which also arises from the posterior cord, innervates the levator scapulae.
What is a dermatome in anatomy?
A dermatome is an area of skin in which sensory nerves derive from a single spinal nerve root (see the following image). Dermatomes of the head, face, and neck.
What is myotome and dermatome?
A group of muscles that is innervated by the motor fibers that stem from a specific nerve root is called a myotome. An area of the skin that is innervated by the sensory fibers that stem from a specific nerve root is called a dermatome.
What is the L4 dermatome?
The L4 dermatome is an area of skin that receives sensations through the L4 spinal nerve and includes parts of the thigh, knee, leg, and foot. The L4 myotome is a group of muscles controlled by the L4 spinal nerve and includes parts of several muscles in the back, pelvis, thigh, leg, and foot.
What is innervated at C5 6?
From the lateral cord, C5, C6, and C7 supply the pectoralis major and minor muscles, via the lateral and medial pectoral nerves, as well as the coracobrachialis, brachialis and biceps brachii, via the musculocutaneous nerve. The musculocutaneous nerve provides sensation to the skin of the lateral forearm.
What is controlled by C5?
What Motor Function is Consistent with C5? The nerve root of C5 runs between vertebrae C4 and C5. Motor function includes: movement of the deltoid (abduction of arm – movement of the arm at shoulder away from midline)
What nerve is between C5 and C6?
C6 spinal nerve
C6 spinal nerve. In between C5-C6, the C6 spinal nerve exits the spinal cord through a small bony opening on the left and right sides of the spinal canal called the intervertebral foramen. This C6 nerve has a sensory root and a motor root.
Where is the L4 dermatome?
What is the dermatome of T6?
T6 – Chest/rib area. T9 – From the middle section of the xiphoid process to the belly button. 5 lumbar dermatomes (L1-L5) that supply sensation from these spinal nerves in the lower limb (leg, foot, hip, etc.)