Where is the 5th 6th and 7th cervical vertebrae?
The C5-C6 spinal motion segment (located in the lower cervical spine just above the C7 vertebra) provides flexibility and support to much of the neck and the head above.
Why is C7 called vertebra prominens?
The seventh cervical vertebra is known as the vertebra prominens because of its prominent spinous process (Fig. 5-14). The spinous process of C7 is the most prominent of the cervical region, although occasionally C6 is more prominent (C6 is the last cervical vertebra with palpable movement in flexion and extension).
Where is the 5th cervical vertebrae located?
Location: 0.5 cun lateral to the lower border of the spinous processes of the first through twelfth thoracic vertebrae. They are located bilaterally for a total of 24 points.
What nerves are affected by C5-C6 C7?
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.
What is special about C7?
Unique Vertebra: C7 Not only is C7’s spinous process significantly bigger than those of the vertebrae above, it is also a different shape to better fit with T1 below. C7 also lacks holes (foramina in its transverse processes) for vertebral arteries to pass, which are present in all of the other cervical vertebrae.
How can you tell the difference between T1 and C7?
C7 and T1 vertebrae. C7, also called vertebra prominens, is the last cervical vertebra. T1 is the first thoracic vertebra. C7 has a longer spinous process (bony protrusion), which can be felt in the back of the neck. T1’s spinous process projects at a more downward angle and may not be as prominent.
What nerves are affected by C5?
C5, as mentioned earlier, along with C3 and C4, contributes to the phrenic nerve that innervates the diaphragm. Roots C5, C6, and C7 produce the long thoracic nerve, responsible for controlling the serratus anterior.
What does your C5 control?
Cervical nerve 5 controls the deltoid muscles of your shoulders and your biceps. C5 provides sensation to the upper part of your upper arm down to your elbow.
Where is C7 and C8 located?
cervical spine
The C6 and C7 cervical vertebrae (and the C8 spinal nerve) form the lowest levels of the cervical spine and directly impact the arm and hand muscles. The locations of C6 and C7 vertebrae are both in the lowest levels of the cervical spine, near the base of the neck.
What happens when you break C7 vertebrae?
Individuals with a complete C7 spinal cord injury will not be able to move or feel their trunk or lower body, and will also have some impairments in their hands/fingers. This will affect: Bladder and bowel movements. The inability to control these reflexes and muscle contractions can make you very prone to accidents.