Human Anatomy (9th Edition)
Human Anatomy (9th Edition)
9th Edition
ISBN: 9780134320762
Author: Frederic H. Martini, Robert B. Tallitsch, Judi L. Nath
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
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