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Parathyroid Glands

Found along the posterior edges of the thyroid lobes inside the thyroid capsule, there are 2 pairs (superior and inferior) of small endocrine glands. They seem as small yellowish-brown bodies. The parathyroid glands secrete a hormone, which keeps blood calcium level by marshalling the calcium from the

Dura Mater

The cerebral dura mater (also termed cranial dura) is composed of 2 layers: outer bargain and inner meningeal layers and is a powerful fibrous membrane. With the exception of where they enclose venous sinuses, the 2 layers are fused with each other. Outer Layer (Or Endosteal Layer)

Tela Choroidea

The pia mater becomes the tela chorioidea when it is carried over the inferior part of the roof or posterior wall of the fourth ventricle of the brain, and the portion of the pia mater from which the chorioid plexuses of that cavity are created is attached


The trachea is a membrano-cartilaginous tube creating the start of lower respiratory passage and is non-collapsible. The Trachea is also called windpipe and it is a fibrocartilaginious tube that creates the beginning of the lower respiratory tract. 16-20 C-shaped rings of Hyaline cartilage keep its lumen distinct. A

Pituitary Gland

Location The pituitary gland is situated in the hypophyseal fossa on the superior outermost layer of the body of the sphenoid (sella turcica) and is a small endocrine gland Suspended from the floor of the 3rd ventricle of the brain by a narrow stalk referred to as

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