Pearson eText Human Anatomy -- Instant Access (Pearson+)
9th Edition
ISBN: 9780135212936
Author: Frederic Martini, Robert Tallitsch
Publisher: PEARSON+
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Chapter 23, Problem 16RFT
Summary Introduction
Introduction:
The wall of the pharynx consists of large lymph nodules, which are called tonsils. They are involved in removal of pathogens, which come with food and air. There are three major types of tonsils in the body, which are the palatine, lingual, and pharyngeal tonsils.
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It sometimes is difficult to distinguish the different lymphoid organs from one another in histological sections. How would you tell the thymus from a lymph node? (a) Only the thymus has a cortex and medulla; (b) lymphocytes are far less densely packed in the thymus than in the lymph node; (c) the thymus contains no blood vessels; (d) only the thymus has distinct lobules and thymic corpuscles.
Which of the following lymphoid organs have a cortex and a medulla? (More than one choice is correct.) (a) lymph nodes, (b) spleen, (c) thymus, (d) aggregated lymphoid nodules, (e) tonsils.
Which of the following is the only lymphatic organ to demonstrate AFFERENT lymphatic vessels?
Choose from the follliwng:
(A) tonsil
(B) spleen
(C) thymus
(D) lymph node
Chapter 23 Solutions
Pearson eText Human Anatomy -- Instant Access (Pearson+)
Ch. 23 - Match each numbered item with the most closely...Ch. 23 - Match each numbered item with the most closely...Ch. 23 - Prob. 3RFTCh. 23 - Prob. 4RFTCh. 23 - Prob. 5RFTCh. 23 - Prob. 6RFTCh. 23 - Prob. 7RFTCh. 23 - Match each numbered item with the most closely...Ch. 23 - Prob. 9RFTCh. 23 - Prob. 10RFT
Ch. 23 - Identify the structures of the lymphatic system in...Ch. 23 - The lymphatic system is composed of (a) lymphatic...Ch. 23 - Prob. 13RFTCh. 23 - 14. Most of the lymph returns to the venous...Ch. 23 - Prob. 15RFTCh. 23 - Prob. 16RFTCh. 23 - Prob. 17RFTCh. 23 - Prob. 18RFTCh. 23 - Prob. 19RFTCh. 23 - Prob. 20RFTCh. 23 - Prob. 21RFTCh. 23 - Prob. 1RCCh. 23 - Prob. 2RCCh. 23 - Blocking the antigen receptors on the surface of...Ch. 23 - Prob. 4RCCh. 23 - 5. What major artery and vein pass through the...Ch. 23 - Prob. 6RCCh. 23 - Prob. 7RCCh. 23 - Prob. 8RCCh. 23 - 9. What occurs in secondary lymphatic structures?
Ch. 23 - 10. Where are aggregated lymphoid nodules, also...Ch. 23 - Prob. 1CTCh. 23 - Prob. 2CTCh. 23 - Prob. 3CT
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- Select the best answer or answers from the choices given: Lymphocytes that develop immunocompetence in the bone marrow are (a) T lymphocytes, (b) B lymphocytes, (c) NK cells, (d) B and T lymphocytes.arrow_forwardIndicate whether each of the following statements about the spleen is true or false. If you think a statement is false, explain why. (a) It filters antigens out of the blood. The marginal zone is rich in T cells, and the periarteriolar lymphoid sheath (PALS) is (b) rich in B cells. (c) It functions to remove old and defective red blood cells. Lymphatic vessels draining the tissue spaces enter the spleen. It contains germinal centers. (d)arrow_forwardidentify the structures listed in Figurearrow_forward
- Due to the presence of breast cancer, Mrs. Franco had a right radical mastectomy in which her right breast, underlying muscle, and right axillary lymph nodes and vessels were removed. Now she is experiencing severe swelling in her right arm. Why did the surgeon remove lymph tissue as well as the breast? Why is Mrs. Franco’s right arm swollen?arrow_forwardA patient has enlarged right inguinal lymph nodes that are very tender to the touch. Examination of the feet reveals a small cut between the right 3rd and 4th toes, which are warm and red. What would your initial impression be, and why are the lymph nodes enlarged?arrow_forwardSelect the best answer or answers from the choices given: The germinal centers in lymph nodes are largely sites of (a) macrophages, (b) proliferating B lymphocytes, (c) T lymphocytes, (d) all of these.arrow_forward
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