The thyroid gland produces thyroid hormones that regulate metabolism, growth, and energy levels in the body. When there is an imbalance in thyroid hormone levels, it can lead to conditions like hyperthyroidism (overactive thyroid) or hypothyroidism (underactive thyroid), affecting various bodily functions. Thyroid disorders are commonly treated with medication, lifestyle changes, or in severe cases, surgery.
This is because thyroid gland has a true capsule and false capsule (pretracheal fascia). The false capsule is attached to thyroid cartillage, hence glands moves up with swallowing. love, =)
When you breathe out, or exhale, your diaphragm and rib muscles relax, reducing the space in the chest cavity. As the chest cavity gets smaller, your lungs deflate, similar to releasing of air from a balloon
the chest moves front and back
When you inhale, the diaphragm contracts and moves downward, while the rib cage expands, increasing the size of the chest cavity and allowing air to flow into the lungs. Conversely, when you exhale, the diaphragm relaxes and moves upward, and the rib cage contracts, decreasing the size of the chest cavity and pushing air out of the lungs. This change in chest space is essential for the breathing process.
When the diaphragm contracts and moves lower, the chest cavity enlarges, reducing the pressure outside the lungs. To equalize the pressure, air enters the lungs. When the diaphragm relaxes and moves back up, the elasticity of the lungs and chest wall pushes air out of the lungs.
Under normal inspiration the chest wall stays relatively still, only the abdomen moves because of diaphragmatic motion. However, when you take a deep breath the intercostal muscles and the scalene muscles contract. This causes the chest wall to expand outward(due to the intercostals) and move upwards(due to the scalenes).
When you breathe out, your chest gets smaller. This happens because the diaphragm and intercostal muscles relax, allowing the lungs to deflate and air to be expelled from the body. As the lungs contract, the rib cage also moves inward, leading to a decrease in chest volume.
During inhalation, the diaphragm contracts and moves downward, increasing the volume inside the chest cavity. This increase in volume causes a decrease in pressure, leading to air rushing into the lungs to equalize the pressure. As a result, the chest expands to accommodate the incoming air.
Because pretrachea fascia that surrounds thyroid gland is attached to larynx, therefore lumps of thyroid gland will move together with swallowing.
The diaphragm is a convex shaped muscle (convex side within the chest cavity).When the diaphragm muscle contracts it flattens out and drops down out of the chest cavity making more room and creating a vacuum -- air then rushes into the lungs.When the diaphragm relaxes it moves back up into the chest cavity and expels the air on the lungs. During inhalation, the increased volume of the lungs causes the ribcage to expand. Inhalation - Diaphragm CONTRACTS and moves DOWN (to allow more space in the chest cavity for lungs to expand).Exhalation - Diaphragm RELAXES and moves UP (to force air out of the lungs).
The diaphragm moves down on inhaling. The rib cage expands in volume. The creates a sort of vacuum in the chest cavity, causing the air to enter the lungs.