Question

The isthmus which connects right and left lobes of thyroid gland is located from ............ tracheal cartilages.

• A. $2^{nd}$ to $4^{th}$
• B. $5^{th}$ to $7^{th}$
• C. $6^{th}$ to $8^{th}$
• D. $1^{st}$ to $3^{rd}$

Answer 1

Answer: (A)

• The thyroid gland consists of two left and right lobes which are connected by a thin, median isthmus overlying from 2${}^{nd}$ to 4${}^{th}$ tracheal rings, forming a "U" or "H" shape.

So, the correct answer is option B.