ANATOMY & PHYSIOLOGY 4/E PAC 1 SEMESTER
4th Edition
ISBN: 9781265061173
Author: McKinley
Publisher: MCG CUSTOM
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Chapter 21, Problem 5CAL
Summary Introduction
Introduction:
The interstitial fluid called lymph which is found outside the cell contains some water dissolved ions, proteins, foreign materials like pathogens and cell debris. During the capillary exchange, some of the components of lymph and excess fluid are absorbed by the lymphatic capillaries. Any defect in the drainage of lymph could cause accumulation of interstitial fluid around the cells a condition called lymphedema.
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All of the following can result in lymphedema (the accumulation of interstitial fluid due to interference with lymphatic drainage) except a. surgical removal of a group of lymph nodes. b. obstruction of lymph vessels that drain a lymph node, as might occur with a tumor or an infection. c. radiation therapy, which may cause scar formation of lymph vessels. d. exercise that increases the flow of lymph in the lymph vessels.
Which of the following is/are false about the lymphatic system?
A. It is a vascular system that takes up excess interstitial fluid and transports it to the bloodstream.
B. It drains into the circulatory system via two large ducts that drain into veins near the shoulders.
C. Among its components is the network of tiny lymphatic vessels that intermingle among capillaries of the cardiovascular system.
D. A pump delivers lymph through the lymphatics.
E. C and D only
A primary function of lymphatic vessels is:
a. the circulation of white blood cells
b. act as a shock absorber for the brain
c. transport extracellular fluid for filtration
d. to regulate fluid through the digestive tract
e. the return of blood from the capillaries to the heart
Chapter 21 Solutions
ANATOMY & PHYSIOLOGY 4/E PAC 1 SEMESTER
Ch. 21.1 - What substances typically are absorbed from the...Ch. 21.1 - Prob. 2WDYLCh. 21.1 - Prob. 3WDYLCh. 21.1 - Which major body regions drain lymph to the right...Ch. 21.2 - How are primary lymphatic structures and secondary...Ch. 21.3 - Why is red bone marrow considered a primary...Ch. 21.3 - Prob. 7WDYLCh. 21.4 - Prob. 8WDYLCh. 21.4 - What are the general functions of the spleen?...Ch. 21.4 - Prob. 10WDYL
Ch. 21.4 - Prob. 11WDYLCh. 21.4 - What is the function of MALT in the mucosal...Ch. 21 - Prob. 1DYKBCh. 21 - _____ 2. Lymph is drained into the thoracic duct...Ch. 21 - _____ 3. The spleen is a secondary lymphatic...Ch. 21 - Prob. 4DYKBCh. 21 - _____ 5. Which type of lymph vessel consists...Ch. 21 - _____ 6. Which statement is accurate about lymph...Ch. 21 - In an early Streptococcus infection of the throat,...Ch. 21 - _____ 8. The lymphatic trunk that drains lymph...Ch. 21 - _____ 9. Aged erythrocytes are removed from...Ch. 21 - _____ 10. Interstitial fluid that is absorbed into...Ch. 21 - Prob. 11DYKBCh. 21 - Prob. 12DYKBCh. 21 - Prob. 13DYKBCh. 21 - Which body regions have their lymph drained to the...Ch. 21 - Describe how the thymuss anatomy changes as we...Ch. 21 - Prob. 16DYKBCh. 21 - Compare and contrast the red and white pulp of the...Ch. 21 - Describe the specific locations of the tonsils.Ch. 21 - Describe the location and function of diffuse...Ch. 21 - Prob. 20DYKBCh. 21 - Prob. 1CALCh. 21 - A child born without his thymus would not have...Ch. 21 - Prob. 3CALCh. 21 - Prob. 4CALCh. 21 - Prob. 5CALCh. 21 - Prob. 1CSLCh. 21 - Jordan has an enlarged lymph node along the side...Ch. 21 - Prob. 3CSL
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- Fluid found in lymphatic vessels is known as:- a. interstitial fluid. b. plasma. c. lymph. d. intracellular fluidarrow_forwardExplain why each choice (a-d) is correct or incorrect The lymphatic capillaries are a. More permeable than blood capillaries b. Less permeable than blood capillaries c. As permeable as blood capillaries d. Completely impermeablearrow_forwardAn increase in the number of which of the following suggests a bacterial infection? A. Lymphocytes B. Neutrophils C. Monocytes D. Eosinophilsarrow_forward
- Which of the following is not a function of the lymphatic system? a. It absorbs dietary lipids. b. It provides immunity. c. It transports nutrients to tissues. d. It returns proteins to the blood. e. It returns excess fluid from tissues to the blood.arrow_forwardWhich of the following is not a function of the lymphatic system? A. Transports immune cells and bacteria around the body B. Assists in the transport of fats C. Facilitates gas exchange between capillaries and the lungs D. Drains excess fluid from body tissuesarrow_forwardA. When heart muscles due we have a heart attack. Death is usually from lack of O2… but how can that be when the heart is full of blood? B. LYMPHATIC: What is the lymphatic system and how is it linked to the circulatory system?arrow_forward
- Which of the following statements is valid concerning lymph fluid formation 1. Intermediate fiamnents attach lymphatic endothelial cells to sorrounding tissue 2. When the tissue swell due to the injury, gaps in the lymphatic capillaries open allowing fluid to flow from the blood capillary to the lymphatic capillary 3. Lymphatic capillaries are closed ended vesselsarrow_forwardWhich of the following statements is correct?a. Lymphatic vessels do not have valves.b. Lymphatic vessels empty into lymph nodes.c. Lymph from the right-lower limb passes into the right jugular orsubclavian vein.d. Lymph from the jugular and subclavian trunks empties into thecisterna chyli.e. All of these are correctarrow_forwardAged erythrocytes are removed from circulation by the a. mucosa-associated lymphatic tissue. b. lymph nodes. c. thymus. d. spleen.arrow_forward
- I Mark the following statements as true (T) or false (F), If the statement is false, correct it to make it a true statement. a. Red blood cells are also known as leukocytes. b. White blood cells with granules in their cytoplasm are known as agranulocytes. The granulocytes include the neutrophils, eosinophils, and basophils. с. d. Erythrocytes carry oxygen through the body on the protein hemoglobin. Both lymphocytes and monocytes are granulocytes. е. f. Platelets are fully formed cells involved in blood clotting. 2 Label the formed elements on the peripheral blood smear in Figure 11.11.arrow_forwardDescribe the major functions of: a. lymph nodes b. spleen c. MALT d. Thymusarrow_forwardIn what type of WBC do you often see vacuoles as a result of phagocytosis? a. Monocytes b. Neutrophils c. Eosinophils d. Basophilsarrow_forward
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