
Concept explainers
To label: The lymphatic structures.
Introduction: Lymphatic system contains a group of tissues and organs which protect our body from toxins and unwanted materials. It contains well-defined structures present in our body. The primary function of the lymphatic system is to transport a lymphatic fluid containing white blood cells that fight against unwanted materials throughout the body. The red bone marrow, thymus, lymph nodes, tonsils, and spleen come under the lymphatic organs.

Answer to Problem 1.1BGL
Pictorial representation:
Fig 1: Lymphatic and blood capillaries
Explanation of Solution
In the above-given figure, the blood capillary, interstitial fluid, lymphatic capillary, and tissue cells are labeled.
Excess fluid in the interstitial space, space between the tissues and blood capillaries, is termed as interstitial fluid. Once, the interstitial fluid enters the lymphatic capillaries (located near the blood capillaries) then it is said to be lymph. Lymph fluid flows from the lymphatic capillaries into the lymphatic vessels.
To label: The lymphatic capillary.

Answer to Problem 1.1BGL
Pictorial representation:
Fig 2 lymphatic capillaries
Explanation of Solution
In the above-given image, the interstitial fluid, tissue cell, and the lymph in the lymphatic capillaries are labeled.
Interstitial fluid: It is also known as tissue fluid. It is a thin layer of fluid that surrounds the body’s cells in the interstitial spaces (tissues spaces).
Lymphatic capillaries: Tiny, thin-walled vessels exist in the spaces between the cells all over the body.
To label: The lymphatic capillaries.

Answer to Problem 1.1BGL
Pictorial representation:
Fig 3: Lymphatic capillaries
Explanation of Solution
The fig:3 clearly indicates the structures like right lymphatic duct, lymphatic vessels in the arm, thoracic duct, cistern chili, lymphatic vessels, and thoracic duct.
Lymphatic vessels flow into lymph nodes to drain lymph. Lymph trunks join to form the thoracic duct and right lymphatic duct. The lymph trunk merges to form cisterna chyli in the abdominal region. The thoracic duct initiates at the cisterna chyli and drains the lymph from the legs, abdomen, left arm, left the side of the thorax, neck, and head.
The right lymphatic duct drains lymph from the right arm by means of the right jugular trunk, and right side of the thorax, neck, and head by means of the right subclavian trunk.
Right lymphatic duct: Also known as a right thoracic duct that drains the lymphatic fluid usually from the right thoracic cavity, right arm, neck’s right side, and the head.
Lymphatic vessels: Thin-walled vessels or tubes that carry the lymph.
Thoracic duct: It is the major vessels of the lymphatic system. It collects the large portion of the lymph and drains into the blood.
Cisterna chyli: A dilated sac located at the lower end of the thoracic duct in which the lymph flows from the interstitial trunk.
To label: The lymphatic drainage.

Answer to Problem 1.1BGL
Pictorial representation:
Fig 4: Lymphatic drainage
Explanation of Solution
The fig:4 clearly indicates the area drained by the right lymphatic duct and the area drained by the thoracic duct.
Lymphatic vessels flow into lymph nodes to drain lymph. Lymph trunks join to form the thoracic duct and right lymphatic duct. The lymph trunk merges to form cisterna chyli in the abdominal region. The thoracic duct initiates at the cisterna chyli and drains the lymph from the legs, abdomen, left arm, left the side of the thorax, neck, and head.
The right lymphatic duct drains lymph from the right arm by means of the right jugular trunk, and right side of the thorax, neck, and head by means of the right subclavian trunk.
To identify: The thoracic duct

Answer to Problem 1.1BGL
Pictorial representation:
Fig: 5 Thoracic duct in cadaver
Explanation of Solution
The fig:5 clearly indicates the structures like thoracic duct, azygos vein, diaphragm, vena cava, and spleen.
Thoracic duct: It is the major vessels of the lymphatic system. It collects the large portion of the lymph and drains into the blood.
Azygos vein: It is a vein running up the side of the thoracic vertebral column. It drains itself towards the superior vena cava.
Diaphragm: A skeletal muscle located at the bottom of the chest and separates the abdomen from the chest.
Vena cava: Vein that returns the blood to the heart from various body parts.
Spleen: Largest lymphatic organ situated above the stomach in the left upper quadrant of the abdomen and under the ribcage.
Want to see more full solutions like this?
Chapter 31 Solutions
Laboratory Manual for Anatomy and Physiology, 6e Loose-Leaf Print Companion
- Ch.21 What causes patients infected with the yellow fever virus to turn yellow (jaundice)? A. low blood pressure and anemia B. excess leukocytes C. alteration of skin pigments D. liver damage in final stage of disease — What is the advantage for malarial parasites to grow and replicate in red blood cells? A. able to spread quickly B. able to avoid immune detection C. low oxygen environment for growth D. cooler area of the body for growth — Which microbe does not live part of its lifecycle outside humans? A. Toxoplasma gondii B. Cytomegalovirus C. Francisella tularensis D. Plasmodium falciparum — explain your answer thoroughlyarrow_forwardCh.22 Streptococcus pneumoniae has a capsule to protect it from killing by alveolar macrophages, which kill bacteria by… A. cytokines B. antibodies C. complement D. phagocytosis — What fact about the influenza virus allows the dramatic antigenic shift that generates novel strains? A. very large size B. enveloped C. segmented genome D. over 100 genes — explain your answer thoroughlyarrow_forwardWhat is this?arrow_forward
- Molecular Biology A-C components of the question are corresponding to attached image labeled 1. D component of the question is corresponding to attached image labeled 2. For a eukaryotic mRNA, the sequences is as follows where AUGrepresents the start codon, the yellow is the Kozak sequence and (XXX) just represents any codonfor an amino acid (no stop codons here). G-cap and polyA tail are not shown A. How long is the peptide produced?B. What is the function (a sentence) of the UAA highlighted in blue?C. If the sequence highlighted in blue were changed from UAA to UAG, how would that affecttranslation? D. (1) The sequence highlighted in yellow above is moved to a new position indicated below. Howwould that affect translation? (2) How long would be the protein produced from this new mRNA? Thank youarrow_forwardMolecular Biology Question Explain why the cell doesn’t need 61 tRNAs (one for each codon). Please help. Thank youarrow_forwardMolecular Biology You discover a disease causing mutation (indicated by the arrow) that alters splicing of its mRNA. This mutation (a base substitution in the splicing sequence) eliminates a 3’ splice site resulting in the inclusion of the second intron (I2) in the final mRNA. We are going to pretend that this intron is short having only 15 nucleotides (most introns are much longer so this is just to make things simple) with the following sequence shown below in bold. The ( ) indicate the reading frames in the exons; the included intron 2 sequences are in bold. A. Would you expected this change to be harmful? ExplainB. If you were to do gene therapy to fix this problem, briefly explain what type of gene therapy youwould use to correct this. Please help. Thank youarrow_forward
- Molecular Biology Question Please help. Thank you Explain what is meant by the term “defective virus.” Explain how a defective virus is able to replicate.arrow_forwardMolecular Biology Explain why changing the codon GGG to GGA should not be harmful. Please help . Thank youarrow_forwardStage Percent Time in Hours Interphase .60 14.4 Prophase .20 4.8 Metaphase .10 2.4 Anaphase .06 1.44 Telophase .03 .72 Cytukinesis .01 .24 Can you summarize the results in the chart and explain which phases are faster and why the slower ones are slow?arrow_forward
- Can you circle a cell in the different stages of mitosis? 1.prophase 2.metaphase 3.anaphase 4.telophase 5.cytokinesisarrow_forwardWhich microbe does not live part of its lifecycle outside humans? A. Toxoplasma gondii B. Cytomegalovirus C. Francisella tularensis D. Plasmodium falciparum explain your answer thoroughly.arrow_forwardSelect all of the following that the ablation (knockout) or ectopoic expression (gain of function) of Hox can contribute to. Another set of wings in the fruit fly, duplication of fingernails, ectopic ears in mice, excess feathers in duck/quail chimeras, and homeosis of segment 2 to jaw in Hox2a mutantsarrow_forward
- Human Anatomy & Physiology (11th Edition)BiologyISBN:9780134580999Author:Elaine N. Marieb, Katja N. HoehnPublisher:PEARSONBiology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStaxAnatomy & PhysiologyBiologyISBN:9781259398629Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa StouterPublisher:Mcgraw Hill Education,
- Molecular Biology of the Cell (Sixth Edition)BiologyISBN:9780815344322Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter WalterPublisher:W. W. Norton & CompanyLaboratory Manual For Human Anatomy & PhysiologyBiologyISBN:9781260159363Author:Martin, Terry R., Prentice-craver, CynthiaPublisher:McGraw-Hill Publishing Co.Inquiry Into Life (16th Edition)BiologyISBN:9781260231700Author:Sylvia S. Mader, Michael WindelspechtPublisher:McGraw Hill Education





