In vertebrate anatomy, the throat is the front part of the neck, positioned in front of the vertebra. It contains the pharynx and larynx. An important section of it is the epiglottis, separating the esophagus from the trachea (windpipe), preventing food and drinks being inhaled into the lungs.
Is the trachea anterior or posterior to the spine?
The right posterior border of the trachea runs along the anterior aspect of the vertebral bodies. Occasionally, the esophagus may be found more laterally on the left side making it prone to injury during mediastinoscopy.
Is the esophagus anterior to the spine?
In summary, the relationship between the esophagus and anterior cervical spine has been described from the level of the C5 vertebral body to the C7 vertebral body. The esophagus lies closest to the vertebral bodies and disc spaces in the midline.
What nerve passes from the spinal cord into the limbs?
brachial plexus: A network of nerve fibers, running from the spine, formed by the ventral rami of the lower four cervical and first thoracic nerve roots (C5–C8, T1). It proceeds through the neck, the axilla (armpit region), and into the arm. It also supplies the brachium, the antebrachium, and the hand.
Which vertebrae controls the esophagus?
The esophagus originates at the level of the sixth cervical vertebrae (C6), approximately 18 cm from the incisors, posterior to the cricoid cartilage. From the pharyngoesophageal junction, the esophagus passes through the mediastinum and diaphragm and connects to the cardia of the stomach.
What causes dysphagia?
Dysphagia is usually caused by another health condition, such as: a condition that affects the nervous system, such as a stroke, head injury, multiple sclerosis or dementia. cancer – such as mouth cancer or oesophageal cancer. gastro-oesophageal reflux disease (GORD) – where stomach acid leaks back up into the …
Is the heart ventral to the esophagus?
The upper ventral, thoracic, or chest cavity contains the heart, lungs, trachea, esophagus, large blood vessels, and nerves.
Why is my back neck bone sticking out?
Poor posture with a forward bend can weaken your upper back muscles and create a hump at the base of your neck. This condition, which doctors call kyphosis, is more commonly known as dowager’s hump.
What part of your spine controls your legs?
The nerves of the cervical spine go to the upper chest and arms. The nerves in your thoracic spine go to your chest and abdomen. The nerves of the lumbar spine then reach to your legs, bowel, and bladder. These nerves coordinate and control all the body’s organs and parts, and let you control your muscles.
What prevents hyperextension of the spine?
The system of ligaments in the vertebral column, combined with the tendons and muscles, provides a natural brace to help protect the spine from injury. Ligaments aid in joint stability during rest and movement and help prevent injury from hyperextension and hyperflexion (excessive movements).