Name: 76. The dster of lymph nodes found in the underarm and upper chest regions

Question

Name: 76. The dster of lymph nodes found in the underarm and upper chest regions is referred to as nodes. a. superficial cervical b. inguinal c. axillary d. superficial cubital 77. A type of blood cell produced by lymph nodes is called a(n): a. eosinophil. b. erythrocyte c. neutrophil. d. monocyte. 78. In advanced old age, the thymus may be largely replaced by: a. fat. b. protein. c. scar tissue. d. cartilage. 79. The size of the thymus is the largest at: a. birth. b. 2 years of age. c. puberty d. approximately 25 years of age. The tonsils located near the posterior opening of the nasal cavity are called the a. palatine b. pharyngeal c. lingual d. laryngeal 80. tonsils. 81. The spleen during infectious diseases and in old age. a. atrophies; hypertrophies b. hypertrophies; atrophies c. secretes hormones; stops functioning d. None of the above are correct Which of the following is a function of the thymus? fnal site of lymphocyte development before birth. 82. a. It serves as birth, it begins to secrete a group of hormones that enable lymphocytes b. Soon into mature T cells. to develop tirth, it begins to secrete a hormone that actively stimulates the after b c. Soon posterior pituitary to release oxytocin d. Both A and B are functions of the thu 12

Explanation / Answer

76. (C) Axillary lymph nodes. Axilla is the name given to the underarm and nearby area. They are a group of lymph nodes rather than a single isolated node.

77. (C) Neutrophils or polymorphonuclear leukocytes are produced by the lymphatic nodes in response to an infection.

78. (A) As the age advances, the thymus tissue gets replaced by fat. This usually starts after puberty and complete regression occurs.

79. (B) The thymus is the largest during childhood. It starts regressing as soon as one reaches puberty.

80. (B) The posteriod nasal tonsils are also known as adenoids or nasopharyngeal tonsils. They are frequently affected by infections in vulnerable individuals.

81. (D) None of the above are correct. This is because while spleen can enlarge during certain infections or other underlying systemic pathologies, it neither stops functioning nor undergoes a change in size in the elderly. Hypofunction can occur according to certain studies but its functions basically remains the same.

82. (D) Both A and B are true about thymus. It is the site if maturation of T cells. It secretes a hormone known as Thymosin which regulates the development of the T cells.

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