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What are the 3 processes found on the bone?
Most vertebrae have 3 processes. The spinous process, which is the one that comes straight off of your vertebral column, can actually be felt . You can feel this one particularly well at the base of your neck (this is the 7th Cervical vertebra, also known as Vertebra prominens). The very first vertebra, C1, also known at Atlas, does not have a spinous process. Each vertebra has two transverse processes which are on either side of the spinous processes. All of these processes are important for muscle attachments for movement of the head, neck and torso.
Where is the rhomboid major?
The rhomboid major is a muscle located in the upper back, beneath the trapezius muscle. It originates from the spinous processes of the T2 to T5 vertebrae and inserts into the medial border of the scapula, between the spine and the inferior angle. This muscle plays a key role in retracting and stabilizing the scapula.
Where does the clavotrapezius appear to originate?
The clavotrapezius, a muscle in the trapezius group, originates from the occipital bone at the base of the skull and the spinous processes of the cervical vertebrae, particularly in the upper cervical region. It extends laterally to attach to the clavicle. This muscle plays a crucial role in the movement and stabilization of the shoulder and neck.
What Vertebra has a forked spinous process?
The seventh cervical vertebra (C7) is known to have a forked spinous process making it easily distinguishable from the other cervical vertebrae. This unique feature is commonly referred to as the vertebra prominens.
Which muscle lies in the lamina groove?
The muscle that lies in the lamina groove is the multifidus muscle. This deep muscle is part of the intrinsic back muscles and is situated along the vertebral column, filling the space between the spinous and transverse processes. The multifidus plays a crucial role in stabilizing the spine and assisting with movements such as rotation and extension. Its location in the lamina groove helps it effectively support spinal alignment and posture.
Spinal process broken how it affects back?
The spinous processes of the vertebrae are origins and insertions for various postural muscles. A broken spinous process would likely result in significant pain and muscle aches due to improper alignment of the muscles.
Is multifidus a deep muscle posterior to spine?
The multifidus muscles are deep, intrinsic muscle of the spine. Deep in that it has overlying musculature, intrinsic in that they originate and insert to the spine. The multifidi, along with the rotatores and semispinalis are collective referred to as the transversospinalis muscles given that they orriginate from the transverse processes of the spine & insert on the spinous processes of the spine. The multifidi themselves only span about 2-3 vertebral segments (bones in your back). The transversospinalis group lays deep to the larger erector spinae, which is a midline intrinsic back muscle group.
What is the insertion of the lats?
The latissimus dorsi muscle, commonly referred to as the lats, primarily inserts at the intertubercular groove of the humerus. This large, flat muscle originates from the lower back, specifically from the spinous processes of the lower thoracic vertebrae, lumbar vertebrae, and the iliac crest. Its insertion allows the lats to play a crucial role in movements such as adduction, extension, and internal rotation of the shoulder joint.
How might the bifid spinous processes of cervical vertebrae affect the cervical region of vertebral column?
The bifid spinous processes of cervical vertebrae, particularly seen in C2 to C6, provide increased surface area for muscle attachment, which can enhance the stability and mobility of the cervical region. This unique anatomical feature allows for greater muscular leverage, facilitating head and neck movements. Additionally, the bifid structure may help to accommodate the complex interplay of ligaments and muscles in the cervical area, contributing to both flexibility and support. However, this adaptation may also make the cervical spine more susceptible to certain types of injuries or stresses.
Why would a spinous process hurt?
A spinous process may hurt due to several reasons, including injury, inflammation, or underlying medical conditions like arthritis. Trauma, such as a fall or strain, can lead to localized pain in the area. Additionally, conditions like osteoarthritis or herniated discs can cause referred pain that affects the spinous processes. Muscle tension and spasms around the spine can also contribute to discomfort in this area.
What muscle originates on the temporal fossa?
The muscle that originates on the temporal fossa is the temporalis muscle. It is a fan-shaped muscle located on the side of the head. It is responsible for the movement of the jaw, including chewing and closing the mouth.
What muscle originates on temporal fossa?
The temporalis originates on the temporal fossa.
