State the exact location of the following structures

State the exact location of the following structures: 

1. Centromere
2. Chordae tendinae
3. Thyroid gland
4. Ciliary body
5. Proximal convoluted tubule.

Answer

1. The region of the chromosome to which the spindle is attached during cell division / Region joining the sister chromatids.
2. The cords that arise from the ventricular muscles hold the flaps of the bicuspid and tricuspid valves in position.
3. In front of the neck just below the larynx.
4. Extension of the choroid of the eye.
5. In the cortex region of the kidney between the Malpighian capsule and loop of Henle.