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ID: A Which of the following is not a lymph organ? a. Thymus b. Spleen c. Pancre

ID: 3505980 • Letter: I

Question

ID: A Which of the following is not a lymph organ? a. Thymus b. Spleen c. Pancreas d. Tonsils 69. 70. Lymph ducts empty into the circulatory system, draining into the: a. jugular vein. b. subclavian veins. c. superior vena cava d. inferior vena cava 71. The lymph pressure gradient is established by: a. breathing movements. b. skeletal muscle contractions. c. parasympathetic stimulation. d. both A and B. 72. Lymph flows through the thomacie duct and reeters the general circuliation at the rate of about liter(s) per day. a. 1 b. 0.5 c. 3 d. 5 73. The size of lymph nodes varies from mm to more than mm in diameter. a. 1;20 b. 10; 35 c. 20;45 d. 30; 65 An infection in the thumb may result in enlargement of the nodes. 74. b. inguinal c. superficial cervical d. superficial cubital in the neck along the stemocleidomastoid muscle are called the: a. submental and submaxillary groups. b. superficial cervical lymph nodes c. supratrochlear lymph nodes d. superficial cubital lymph nodes.

Explanation / Answer

69 Which of the following is not a lymph organ?

Answer:- c. pancreas

The lymph organs of the lymphatic system include primary lymphoid organs such as thymus and bone marrow, secondary lymphoid organs such as mucosal lymphoid follicles ( peyer’s plaques, vermiform appendix, tonsils ), lymph nodes and spleen.

70 Lymph ducts empty into circulatory system, draining into the:

Answer:- b. subclavian veins

Right lymphatic ducts and thoracic duct both ends drain into the circulatory system at the right and left subclavian veins.

71 The lymph pressure gradient is established by:

Answer:-d. both A and B

There is no pump in the lymphatic system like the heart in the cardiovascular system therefore lymph pressure gradient is established by breathing movements and the skeletal muscle action.

72 Lymph flows through the thoracic duct and reenters the general circulation at the rate of about ____ liters per day.

Answer:- c. 3

20 liters of plasma is released into the interstitial space of the tissues each day due to capillary filtration. Of this, 17 liters is reabsorbed directly by the blood vessels and the remaining three liters circulate as lymph flow.

73 The size of lymph nodes varies from _______ mm to more than _____mm in diameter.

Answer:- a. 1 ; 20

Lymph nodes are small bean-shaped structures that are usually less than 25 mm in length varies from 1mm to more than 20mm in diameter.

74 An infection in the thumb may result in enlargement of the _____ nodes.

Answer:- d. superficial cubital

Superficial cervical lymph nodes

Enlargement of lymph nodes under can occur due to infection or injury t the hand.

75 The lymph nodes located in the neck along the sternocleidomastoid muscle are called the:

Answer:- b. superficial cervical lymph nodes

This lymph nodes are located on each side of the neck along the external jugular vein, superficial to the sternocleidomastoid muscle.