MICROANATOMY

Detailed explanation-1: -The thymus is inside the ribcage, just behind the breastbone. It filters and monitors our blood content. It produces cells called T-lymphocytes which circulate around the body. These cells are important for cell mediated response to an immune challenge, such as may occur when we have an infection.

Detailed explanation-2: -Answer and Explanation: (b.) Lymphatic vessels typically have very few valves is the TRUE statement.

Detailed explanation-3: -The thymus is a specialized organ of the immune system, located between the breast bone and heart. It produces lymphocytes, is important for T cell maturation (T for thymus-derived).

Detailed explanation-4: -Answer and Explanation: After puberty, the thymus starts to slowly shrink and become replaced by fat. Thymus is a endocrine gland producing thymus hormone and is a lymphoid organ where the T-lymphocytes (immune cells) mature.