Circulatory System: Veins and Arteries and the Blood and Lymphatic Vessels
Briefly identify and discuss the anatomical and structural differences between arteries and veins.
Briefly identify and discuss differences between blood and lymphatic vessels.
View the anatomical models Figure 32.3,Figure 32.4,Figure 32.8,Figure 32.10,Figure 32.13, and Figure 35.1 (a)from your Laboratory Manual and identify the structures that are described by the following abbreviated statements.
Drains the stomach, pancreas, and spleen to the liver for detoxification
Two paired arteries serving the brain
Formed by the union of the radial and ulnar arteries
Drains head, neck, and upper extremities
What the external iliac artery becomes in the thigh
Join to form the inferior vena cava
Receives lymph from the circulation
Filtering clusters under the arm
Enlarged terminus of the thoracic duct
View the histology slides Figure 32.1 (a)and (b)in your Laboratory Manual and identify the microscopic structures indicated by a leader line, number, or bracket. In the threaded Discussion Area below, briefly describe the function of:
Figure 32.1 (a) artery and vein
Figure 32.1 (b) tunica media
Figure 32.1 (b) capillary network
Please use the APA guidelines to include in text citations.
Circulatory System Lab
Name Course Instructor Date
A vein is a blood vessel that carries deoxygenated blood from the blood capillaries to the heart. Veins carry deoxygenated blood through the body, and they have internal vales, unlike arteries. The vein walls are thinner and more superficial (Marieb& Smith, 2016). An example of a vein is the jugular. Another example is the pulmonary veins that carry oxygenated blood from the lungs to the heart's left atrium. Veins tend to contain valves to prevent the backflow of blood towards the capillaries. An artery is a blood vessel through which oxygenated blood flows from the heart to the capillaries in the body. Arteries are thicker, stronger, and have a more flexible muscle layer. An example of arteries is the aorta. Arteries have an endothelial lining that does not contract when there is constriction and the endothelium folds.
Arteries carry oxygenated blood away from the heart they prepare red while veins carry deoxygenated blood towards the heart and veins appear blue. Thus, there are high oxygen levels and low carbon dioxide in arterial blood. The wall of arteries has three layers and is thicker than the veins and veins have the thin elastic muscle layer (Marieb & Smith, 2016). The arterial walls have three layers and are thicker than have the thin elastic muscle layers. For arteries the thickest layer is the tunica media (middle layer), while for veins the thickest layers is the Tunica adventitia.
Briefly identify and discuss differences between blood and lymphatic vessels.
Blood vessels deliver oxygen and nutrients to cells, while lymphatic vessels drain the interstitial fluid that collects in tissues and is a conduit for immune cells and fat absorption.View the anatomical models Figure 32.3,Figure 32.4,Figure 32.8,Figure 32.10,Figure 32.13,...