What is the anatomical position of the thyroid gland?
Anatomy Overview In its anatomic position, the thyroid gland lies posterior to the sternothyroid and sternohyoid muscles, wrapping around the cricoid cartilage and tracheal rings. It is located inferior to the laryngeal thyroid cartilage, typically corresponding to the vertebral levels C5-T1.
Where exactly is the thyroid gland located?
Your thyroid gland is located at the base of your neck, just below the Adam’s apple.
Where is the thyroid gland located and what does it do?
The thyroid gland is a butterfly-shaped organ located in the base of your neck. It releases hormones that control metabolism—the way your body uses energy.
Where is the AV node located within the heart?
The atrioventricular (AV) node is a small structure in the heart, located in the Koch triangle,[1] near the coronary sinus on the interatrial septum. In a right-dominant heart, the atrioventricular node is supplied by the right coronary artery.
What is superior pole of thyroid?
The superior thyroid artery is the first anterior branch of the external carotid artery. However, rarely it may originate from the common carotid artery proximal to the carotid bifurcation. The course of the superior thyroid artery is lateral to the larynx and deep to the strap muscles.
Where does the pituitary gland located?
the brain
The pituitary gland is no larger than a pea, and is located at the base of the brain. The gland is attached to the hypothalamus (a part of the brain that affects the pituitary gland) by nerve fibers and blood vessels. The pituitary gland itself consists of 2 major structures: Anterior lobe.
Where is the thyroid located in a woman?
Your thyroid is a small butterfly-shaped gland found at the base of your neck, just below your Adam’s apple. This gland makes thyroid hormone that travels in your blood to all parts of your body.
What is triiodothyronine?
Triiodothyronine is a thyroid hormone that plays vital roles in the body’s metabolic rate, heart and digestive functions, muscle control, brain development and function, and the maintenance of bones.
Where are the AV and SA nodes located?
The SA node is also called the sinus node. The electrical signal generated by the SA node moves from cell to cell down through the heart until it reaches the atrioventricular node (AV node), a cluster of cells situated in the center of the heart between the atria and ventricles.
Where is the AV bundle located?
The atrioventricular bundle is the extension of the atrioventricular node from the atrium across the fibrous skeleton of the heart to the ventricles. It passes from the anterior and inferior part of the AVN as a group of specialised myocytes within an insulating sheath of connective tissue.
Where is the AV node in the heart?
Anatomically, the AV node is located within the triangle of Koch, a region located at the base of the right atrium defined by the following landmarks: the coronary sinus (CS) ostium, tendon of Todaro (tT), and the septal leaflet of the tricuspid valve (TV).
Where is the thyroid gland located in the neck?
Anatomical Relations The thyroid gland is closely associated with numerous other structures in the anterior neck: Anteriorly – infrahyoid muscles, namely the sternothyroid, superior belly of the omohyoid and sternohyoid Laterally – carotid sheath, containing the common carotid artey, internal jugular vein and vagus nerve
Where does the superior thyroid artery begin and end?
The superior thyroid artery descends laterally to the larynx under the cover of the omohyoid and sternohyoid muscles. The artery runs superficially on the anterior border of the lateral lobe, sending a branch deep into the gland before curving toward the isthmus, where it anastomoses with the contralateral artery.
Where is the thyroid gland located in the embryo?
Fig 2 – The thyroid gland consists of two lobes connected by a central isthmus. It is wrapped around the cricoid cartilage and trachea anteriorly. In the embryo, the thyroid gland begins development near the base of the tongue – in an area known as the foramen cecum.
