ANATOMY PHYS VOL II W ACCESS CUSTOM
9th Edition
ISBN: 9781264412303
Author: SALADIN
Publisher: MCG CUSTOM
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 20.1, Problem 13AYLO
Summary Introduction
To discuss:
The structure and purpose of the venous valves, where they occur, and the reason certain veins have valves but arteries of the corresponding size do not.
Introduction:
Veins carry de-oxygenated blood from the organs to the heart. They are also called as capacitance vessels, as they have flaccid and thin walls. When compared to arteries, they accommodate 64% more volume of blood, with only 13% of the blood. The veins have lower blood pressure than arteries and have a steady blood flow. The average blood pressure seen in the arteries is 90 to 100 mm Hg and rises up to 100 mm Hg during systole; in the veins, it is only 10 mm Hg. Unlike arteries, some veins are equipped with valves that ensure a one-way flow of blood. When empty, the veins collapse, get flattened, and form an irregular shape in the histological sections.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
If using animals in medical experiments could save human lives, is it ethical to do so? In your answer, apply at least one ethical theory in support of your position.
You aim to test the hypothesis that the Tbx4 and Tbx5 genes inhibit each other's expression during limb development. With access to chicken embryos and viruses capable of overexpressing Tbx4 and Tbx5, describe an experiment to investigate whether these genes suppress each other's expression in the limb buds. What results would you expect if they do repress each other? What results would you expect if they do not repress each other?
You decide to delete Fgf4 and Fgf8 specifically in the limb bud. Explain why you would not knock out these genes in the entire embryo instead.
Chapter 20 Solutions
ANATOMY PHYS VOL II W ACCESS CUSTOM
Ch. 20.1 - Prob. 1BYGOCh. 20.1 - Prob. 2BYGOCh. 20.1 - Prob. 3BYGOCh. 20.1 - Prob. 4BYGOCh. 20.1 - Prob. 5BYGOCh. 20.1 - Prob. 6BYGOCh. 20.1 - Definitions of arteries, veins, and capillaries...Ch. 20.1 - Prob. 2AYLOCh. 20.1 - Prob. 3AYLOCh. 20.1 - Prob. 4AYLO
Ch. 20.1 - Prob. 5AYLOCh. 20.1 - Prob. 6AYLOCh. 20.1 - Prob. 7AYLOCh. 20.1 - Prob. 8AYLOCh. 20.1 - Prob. 9AYLOCh. 20.1 - Prob. 10AYLOCh. 20.1 - Prob. 11AYLOCh. 20.1 - Prob. 12AYLOCh. 20.1 - Prob. 13AYLOCh. 20.1 - Prob. 14AYLOCh. 20.1 - Prob. 15AYLOCh. 20.2 - Prob. 7BYGOCh. 20.2 - Prob. 8BYGOCh. 20.2 - Prob. 9BYGOCh. 20.2 - Prob. 10BYGOCh. 20.2 - Prob. 11BYGOCh. 20.2 - Prob. 12BYGOCh. 20.2 - Prob. 1AYLOCh. 20.2 - Prob. 2AYLOCh. 20.2 - Prob. 3AYLOCh. 20.2 - Prob. 4AYLOCh. 20.2 - Why arterial expansion and recoil during the...Ch. 20.2 - Prob. 6AYLOCh. 20.2 - Prob. 7AYLOCh. 20.2 - Prob. 8AYLOCh. 20.2 - Prob. 9AYLOCh. 20.2 - Prob. 10AYLOCh. 20.2 - Prob. 11AYLOCh. 20.2 - Why blood velocity declines from aorta to...Ch. 20.2 - Prob. 13AYLOCh. 20.2 - Prob. 14AYLOCh. 20.2 - Prob. 15AYLOCh. 20.2 - Prob. 16AYLOCh. 20.2 - Prob. 17AYLOCh. 20.2 - Prob. 18AYLOCh. 20.2 - Prob. 19AYLOCh. 20.3 - Prob. 13BYGOCh. 20.3 - Prob. 14BYGOCh. 20.3 - Prob. 15BYGOCh. 20.3 - State the three fundamental causes of edema and...Ch. 20.3 - Prob. 1AYLOCh. 20.3 - Prob. 2AYLOCh. 20.3 - Prob. 3AYLOCh. 20.3 - Prob. 4AYLOCh. 20.3 - Prob. 5AYLOCh. 20.3 - Prob. 6AYLOCh. 20.3 - Relative amounts of fluid given off and reabsorbed...Ch. 20.3 - The role of solvent drag in capillary exchangeCh. 20.3 - Why the dynamics of capillary absorption can...Ch. 20.3 - Prob. 10AYLOCh. 20.3 - Prob. 11AYLOCh. 20.4 - Prob. 17BYGOCh. 20.4 - Prob. 18BYGOCh. 20.4 - Prob. 19BYGOCh. 20.4 - Prob. 1AYLOCh. 20.4 - Prob. 2AYLOCh. 20.4 - Prob. 3AYLOCh. 20.4 - Prob. 4AYLOCh. 20.4 - Prob. 5AYLOCh. 20.4 - Prob. 6AYLOCh. 20.4 - Prob. 7AYLOCh. 20.4 - Prob. 8AYLOCh. 20.5 - Prob. 20BYGOCh. 20.5 - Prob. 21BYGOCh. 20.5 - Prob. 22BYGOCh. 20.5 - Prob. 23BYGOCh. 20.5 - Prob. 1AYLOCh. 20.5 - Prob. 2AYLOCh. 20.5 - Prob. 3AYLOCh. 20.5 - Variability of skeletal muscle perfusion; what...Ch. 20.5 - Prob. 5AYLOCh. 20.6 - Prob. 24BYGOCh. 20.6 - Prob. 25BYGOCh. 20.6 - Prob. 1AYLOCh. 20.6 - Prob. 2AYLOCh. 20.6 - Prob. 3AYLOCh. 20.7 - Prob. 26BYGOCh. 20.7 - Prob. 27BYGOCh. 20.7 - Prob. 28BYGOCh. 20.7 - Prob. 29BYGOCh. 20.7 - For all named blood vessels in this outline, their...Ch. 20.7 - The ascending aorta, aortic arch, and descending...Ch. 20.7 - Branches that arise from the ascending aorta and...Ch. 20.7 - Four principal arteries of the neck: the common...Ch. 20.7 - The external and internal carotid arteries;...Ch. 20.7 - Prob. 6AYLOCh. 20.7 - Prob. 7AYLOCh. 20.7 - Dural venous sinuses; the superior sagittal,...Ch. 20.7 - Prob. 9AYLOCh. 20.7 - Prob. 10AYLOCh. 20.7 - Prob. 11AYLOCh. 20.7 - Prob. 12AYLOCh. 20.7 - Prob. 13AYLOCh. 20.7 - Branches of the abdominal aorta: inferior phrenic...Ch. 20.7 - Prob. 15AYLOCh. 20.7 - Prob. 16AYLOCh. 20.7 - Prob. 17AYLOCh. 20.7 - Prob. 18AYLOCh. 20.7 - Prob. 19AYLOCh. 20.7 - Prob. 20AYLOCh. 20.7 - Prob. 21AYLOCh. 20.7 - Prob. 22AYLOCh. 20.8 - Prob. 30BYGOCh. 20.8 - Prob. 31BYGOCh. 20.8 - Prob. 32BYGOCh. 20.8 - Prob. 33BYGOCh. 20.8 - Prob. 1AYLOCh. 20.8 - Prob. 2AYLOCh. 20.8 - Prob. 3AYLOCh. 20.8 - Prob. 4AYLOCh. 20.8 - Prob. 5AYLOCh. 20.8 - Prob. 6AYLOCh. 20.8 - Prob. 7AYLOCh. 20.8 - Prob. 8AYLOCh. 20.8 - Prob. 9AYLOCh. 20 - Blood often flows into a capillary bed from a. the...Ch. 20 - Prob. 2TYRCh. 20 - A blood vessel adapted to withstand a high pulse...Ch. 20 - Prob. 4TYRCh. 20 - Prob. 5TYRCh. 20 - Prob. 6TYRCh. 20 - Blood flows fester in a venule than in a capillary...Ch. 20 - In a case where interstitial hydrostatic pressure...Ch. 20 - Intestinal blood flows to the liver by way of a....Ch. 20 - Prob. 10TYRCh. 20 - The highest arterial blood pressure attained...Ch. 20 - Prob. 12TYRCh. 20 - Prob. 13TYRCh. 20 - Prob. 14TYRCh. 20 - Prob. 15TYRCh. 20 - Prob. 16TYRCh. 20 - Prob. 17TYRCh. 20 - Prob. 18TYRCh. 20 - Prob. 19TYRCh. 20 - Prob. 20TYRCh. 20 - Prob. 1BYMVCh. 20 - Prob. 2BYMVCh. 20 - Prob. 3BYMVCh. 20 - Prob. 4BYMVCh. 20 - Prob. 5BYMVCh. 20 - -orumCh. 20 - Prob. 7BYMVCh. 20 - Prob. 8BYMVCh. 20 - Prob. 9BYMVCh. 20 - Prob. 10BYMVCh. 20 - Prob. 1WWTSCh. 20 - Blood always passes through exactly one capillary...Ch. 20 - Prob. 3WWTSCh. 20 - Prob. 4WWTSCh. 20 - Prob. 5WWTSCh. 20 - The femoral triangle is bordered by the inguinal...Ch. 20 - Prob. 7WWTSCh. 20 - Prob. 8WWTSCh. 20 - Prob. 9WWTSCh. 20 - Prob. 10WWTSCh. 20 - Prob. 1TYCCh. 20 - Prob. 2TYCCh. 20 - Prob. 3TYCCh. 20 - Prob. 4TYCCh. 20 - Discuss why it is advantageous to have...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- You implant an FGF10-coated bead into the anterior flank of a chicken embryo, directly below the level of the wing bud. What is the phenotype of the resulting ectopic limb? Briefly describe the expected expression domains of 1) Shh, 2) Tbx4, and 3) Tbx5 in the resulting ectopic limb bud.arrow_forwardDesign a grafting experiment to determine if limb mesoderm determines forelimb / hindlimb identity. Include the experiment, a control, and an interpretation in your answer.arrow_forwardThe Snapdragon is a popular garden flower that comes in a variety of colours, including red, yellow, and orange. The genotypes and associated phenotypes for some of these flowers are as follows: aabb: yellow AABB, AABb, AaBb, and AaBB: red AAbb and Aabb: orange aaBB: yellow aaBb: ? Based on this information, what would the phenotype of a Snapdragon with the genotype aaBb be and why? Question 21 options: orange because A is epistatic to B yellow because A is epistatic to B red because B is epistatic to A orange because B is epistatic to A red because A is epistatic to B yellow because B is epistatic to Aarrow_forward
- A sample of blood was taken from the above individual and prepared for haemoglobin analysis. However, when water was added the cells did not lyse and looked normal in size and shape. The technician suspected that they had may have made an error in the protocol – what is the most likely explanation? The cell membranes are more resistant than normal. An isotonic solution had been added instead of water. A solution of 0.1 M NaCl had been added instead of water. Not enough water had been added to the red blood cell pellet. The man had sickle-cell anaemia.arrow_forwardA sample of blood was taken from the above individual and prepared for haemoglobin analysis. However, when water was added the cells did not lyse and looked normal in size and shape. The technician suspected that they had may have made an error in the protocol – what is the most likely explanation? The cell membranes are more resistant than normal. An isotonic solution had been added instead of water. A solution of 0.1 M NaCl had been added instead of water. Not enough water had been added to the red blood cell pellet. The man had sickle-cell anaemia.arrow_forwardWith reference to their absorption spectra of the oxy haemoglobin intact line) and deoxyhemoglobin (broken line) shown in Figure 2 below, how would you best explain the reason why there are differences in the major peaks of the spectra? Figure 2. SPECTRA OF OXYGENATED AND DEOXYGENATED HAEMOGLOBIN OBTAINED WITH THE RECORDING SPECTROPHOTOMETER 1.4 Abs < 0.8 06 0.4 400 420 440 460 480 500 520 540 560 580 600 nm 1. The difference in the spectra is due to a pH change in the deoxy-haemoglobin due to uptake of CO2- 2. There is more oxygen-carrying plasma in the oxy-haemoglobin sample. 3. The change in Mr due to oxygen binding causes the oxy haemoglobin to have a higher absorbance peak. 4. Oxy-haemoglobin is contaminated by carbaminohemoglobin, and therefore has a higher absorbance peak 5. Oxy-haemoglobin absorbs more light of blue wavelengths and less of red wavelengths than deoxy-haemoglobinarrow_forward
- With reference to their absorption spectra of the oxy haemoglobin intact line) and deoxyhemoglobin (broken line) shown in Figure 2 below, how would you best explain the reason why there are differences in the major peaks of the spectra? Figure 2. SPECTRA OF OXYGENATED AND DEOXYGENATED HAEMOGLOBIN OBTAINED WITH THE RECORDING SPECTROPHOTOMETER 1.4 Abs < 0.8 06 0.4 400 420 440 460 480 500 520 540 560 580 600 nm 1. The difference in the spectra is due to a pH change in the deoxy-haemoglobin due to uptake of CO2- 2. There is more oxygen-carrying plasma in the oxy-haemoglobin sample. 3. The change in Mr due to oxygen binding causes the oxy haemoglobin to have a higher absorbance peak. 4. Oxy-haemoglobin is contaminated by carbaminohemoglobin, and therefore has a higher absorbance peak 5. Oxy-haemoglobin absorbs more light of blue wavelengths and less of red wavelengths than deoxy-haemoglobinarrow_forwardWhich ONE of the following is FALSE regarding haemoglobin? It has two alpha subunits and two beta subunits. The subunits are joined by disulphide bonds. Each subunit covalently binds a haem group. Conformational change in one subunit can be transmitted to another. There are many variant ("mutant") forms of haemoglobin that are not harmful.arrow_forwardWhich ONE of the following is FALSE regarding haemoglobin? It has two alpha subunits and two beta subunits. The subunits are joined by disulphide bonds. Each subunit covalently binds a haem group. Conformational change in one subunit can be transmitted to another. There are many variant ("mutant") forms of haemoglobin that are not harmful.arrow_forward
- During a routine medical check up of a healthy man it was found that his haematocrit value was highly unusual – value of 60%. What one of the options below is the most likely reason? He will have a diet high in iron. He is likely to be suffering from anaemia. He lives at high altitude. He has recently recovered from an accident where he lost a lot of blood. He has a very large body size.arrow_forwardExplain what age of culture is most likely to produce an endospore?arrow_forwardExplain why hot temperatures greater than 45 degrees celsius would not initiate the sporulation process in endospores?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Understanding Health Insurance: A Guide to Billin...Health & NutritionISBN:9781337679480Author:GREENPublisher:Cengage
Medical Terminology for Health Professions, Spira...Health & NutritionISBN:9781305634350Author:Ann Ehrlich, Carol L. Schroeder, Laura Ehrlich, Katrina A. SchroederPublisher:Cengage Learning
Understanding Health Insurance: A Guide to Billin...
Health & Nutrition
ISBN:9781337679480
Author:GREEN
Publisher:Cengage
Medical Terminology for Health Professions, Spira...
Health & Nutrition
ISBN:9781305634350
Author:Ann Ehrlich, Carol L. Schroeder, Laura Ehrlich, Katrina A. Schroeder
Publisher:Cengage Learning