The artery is a muscular tube that is surrounded by a smooth tissue. Know the vascular supply of lungs and be able to identify the pulmonary artery, pulmonary vein, and the bronchial artery on the basis of location, structure, and tissues supplied. Report an issue. The layers of the heart conform to the basic pattern seen in the histology of other tubular structure except that the muscle layer dominates. Elastic Artery. Histologically, blood vessels consist of concentric layers or "tunics" of different tissue types. SURVEY. This section, stained with a trichrome stain, shows an artery whose tunica media has characteristics of a medium, muscular artery (inner portion of smooth muscle) and large, elastic artery (outer portion with elastic lamellae). Explain a fiber in each of these two tissue types. Objectives • Introduction • Components of circulatory system • Blood vessels – Basic structure • Arteries: Elastic & Muscular • Arterioles, Meta-arteriole • Capillaries: Continuous, Fenestrated, Sinusoidal • Venules, Veins • Clinical Correlation 3. Unicellular Gland. Arteries are tubular collections of cells that transport oxygenated blood and nutrients from the heart to the tissues of the body. The artery in slide 303 View Image exhibits some intimal thickening (the endothelium is not evident, but you can see a crescent of tissue in between the IEL and the lumen on the right side of the artery) and deep purple-staining elastic fibers of … As seen in the diagram above, the circulatory system spans the entire body. In blood vessels the simple squamous lining cells (epithelium) is called the endothelium. The vasa vasorum, a network of small vessels that supplies the cells of larger vessels, is present in their adventitia and outer part of the media. In connective tissues, a fiber is a protein strand that is collagen, reticular, or elastic. ... few elastic fibers and myofibronlast. ARTERIES •ELASTIC ARTERIES •They are also known as conducting arteries •They have the largest diameters and are the most elastic •They have more elastic tissue than smooth muscle tissues •They have relatively thin tunica intima and tunica adventitia •They possess very thick tunica media, with about 40 –60 concentrically Blood Vessels 2. Arterial Histology. To do so, elastic arteries must be stretchy and possess incredible recoil, which is achieved by large bundles of elastin primarily present in their tunica media. Examples of elastic arteries include the aorta, carotid arteries, and subclavian arteries. Sinusoid is a type of capillary and has only a single layer of endothelium without tunica media / adventitia or elastic lamina. The drawings of histology images were originally ... run prior to 2004. Emin M. Download Download PDF. Histology Notes J.Sasser Histology is the study of tissues. d. Elastic artery e. Muscular artery. At the histological level, the cellular features of the heart play a vital role in the normal function and … The circulatory system is further divided into two major circuits – a pulmonary circulation, and a systemic circulation. A small amount of subendothelial connective tissue and and internal elastic layer (lamina), is sometimes present in some blood vessels. Identify the connective tissue. Note that a = adventitia. Key Difference – Elastic vs Muscular Arteries . A comprehensive database of more than 35 histology quizzes online, test your knowledge with histology quiz questions. 3. 4. Aorta Wall. 2. answer choices. Elastic cartilage histology description Well, now I will describe the elastic cartilage histology details with labeled diagram and slide images. Histology of the Lung. 27 Elastic Connective Tissue - Junction of Media and Adventilia of artery View Virtual EM Slide Observe the branching nature of the elastic fiber and the "mantle" of elastic microfibrils. Elastic cartilage, sometimes referred to as yellow fibrocartilage, is a type of cartilage that provides both strength and elasticity to certain parts of the body, such as the ears. This is the innermost coat. Elastic fibres are particularly prominent at the junction between media and adventitia, but there are no distinct elastic laminae as there are in arteries. In the aorta, the tunica media constitutes the greater part of the vessel wall. Compound Acinar Gland. The valve consists of delicate semilunar projections of the tunica intima of the vein wall. Epimysium, Perimysium, and Endomysium. Vessels transport nutrients to organs/tissues and to transport wastes away from organs/tissues in the blood. DiFiore's Atlas of Histology with Functional Correlations (11th Ed.) Full PDF Package Download Full PDF Package. Layers of Elastic Fibres | 4 (small arteries) – 40 (larger arteries). The lumen colored in red is lined by the intima (1 and 2) A single layer of squamous epithelium called the endothelium (1), is supported by the connective tissue and the internal elastic membrane of the basal lamina (2). The circulatory system includes the heart, blood vessels, and blood. The heart is a four-chambered organ responsible for pumping throughout the body. Tendon. This diagram illustrates the acinus which consists of the respiratory bronchioles (rb 1, 2, 3) the alveolar duct (ad) the alveolar sac (as) and the alveoli. The ICA is a muscular artery with parallel walls and lies just above the carotid artery sinus. Ciliated epithelium. the word fiber is used to describe a structure in three of the four primary (main) tissue types. Histology @ Yale. Testis histology labeled diagram is so important to understand the all structures of testis. Another medium-sized, muscular artery (also called a distributing artery). A primary purpose and significant role of the vasculature is its participation in oxygenating the body. Tunica Intima. for Quebec ATH —– ABB Historique du raccourcissement des problèmes —– Abréviation du VRC —– Croatie ANM Abréviation —– AAI Abréviation sans signification —– "Abréviations, acronymes et initiales "ABD —– Retiré AXR —– Rayon abdominal AUJ —– Aberdeen University Journal AZV —– Abfallzweckverband AYN —– Réseau de la jeunesse autochtone —- … Normal aorta, elastic tissue stain, low power microscopic Appendix: Normal appendix, low power microscopic Artery: Normal large coronary artery, low power microscopic Artery: Normal small coronary artery, low power microscopic Artery: Normal muscular artery, medium power microscopic Artery and Vein The lateral wall of the carotid artery sinus (inferior wall on the diagram) is a transition between the elastic CCA and the muscular ICA. The MCA is a muscular artery and muscular arteries generally have the same basic composition as elastic arteries but the elastic tissue is reduced … Arteries are one type of blood vessels that deliver blood from the heart to the rest of the tissues in our body. Type-2 great alveolar epithelial cells: The rest of the 5% of the alveolar surface area is covered by large, cuboid to round type-2 epithelial cells, responsible for secreting pulmonary surfactant [8] so the lungs can maintain their elastic recoil property. Extracellular matrix, lacunae, chondrocytes, perichondrium (Hyaline Cartilage) Structure of this connective tissue. This complex vascular highway functions to deliver blood … Deoxygenated blood from the peripheral veins is transported back to the heart from capillaries, to venules, to veins, to the … a. Capillaries b. Capillaries and arterioles c. Capillaries, arterioles, and post capillary venules d. Capillaries, arterioles, post capillary venules, and veins e. Capillaries, arterioles, post capillary venules, veins, and arteries. Start studying Artery, Vein & Nerve Histology. The pulmonary circulation is a circuit loop from the right heart taking deoxygenated blood to the lungs where it … [1] This elasticity also gives rise to the Windkessel effect, which helps to maintain a relatively constant pressure in the arteries despite the pulsating nature of the blood flow. It is made up of multiple elastic lamellae alternating with thin layers of circularly oriented smooth muscle.The boundary between the tunica intima and media is not readily defined, and the internal elastic lamina is merely the innermost of the many elastic … Right panel shows the aortic wall at higher magnification. ... Each artery supplies a specific zone of tissue whereas each vein drains many such zones. 10 Cardiovascular system . Verhoeff's elastic stain Medium sized muscular artery 1. Diagram Of Elastic Tissue Animal Tissues Plant And Animal Tissues Siyavula April 19th, 2019 - 4 4 Animal tissues ESG6H Animal cells with the same structure and function are grouped together to form tissues There are four types of animal tissues epithelial tissue connective The meaning of the work fiber is different in muscle tissue and in nervous tissue. Stratified squamous epithelium. Password requirements: 6 to 30 characters long; ASCII characters only (characters found on a standard US keyboard); must contain at least 4 different symbols; Stratified squamous keratinized epithelium with corresponding loose connective tissue. ; The tunica media is the middle muscular and/or elastic layer, containing smooth muscle and elastic tissue in varying proportions. Structure and Function. Hence, they carry and deliver oxygen-rich blood to all parts of the body. The tunica intima is thin and composed of endothelial cells and their underlying supporting tissue. These labelled diagrams should closely follow the current Science courses in histology, anatomy and embryology and complement the virtual microscopy used in the current Medical course. Cardiac muscle. The vascular network begins at the outlets of the heart, courses the entire body, and returns at the major venous inlets of the heart. Fig. Slide List. The tunica intima consists of the endothelium and underlying basement membrane. Blood vessels form a continuous path for blood flow that starts and ends at the heart.Arteries carry blood away from the heart, regardless of the degree of blood oxygenation.Veins carry blood toward the heart. Internal Elastic Lamina | distinct, may be bifid. Tunica Media. Subendothelial Connective Tissue | thinner than elastic arteries. The extracellular matrix is nonliving chemical substances located between cells. Elastic fibres. You will also find branches of testicular artery and a network of anastomosing vein on the vascular layer of tunica albuginea. Most fetal skeletons, covers articular ends of long bones, costal cartilage, most of the larynx, trachea, and nose (Hyaline Cartilage) Location of this connective tissue. Slide 14 Muscular arteries follow the elastic arteries. There is a characteristic inner elastic membrane (dark pink with arrow pointing to it) and a heavy circular muscle in tunica media. Between arteries and veins, there is a network … This diagram shows the PCO2 of the arterial blood at 45mmHg with red cell again showing telling signs of blue deoxygenation while the inspired air has a PCO2 of 40mmHg. Clinical note: Degeneration of components such as elastic fibers in the tunica media of arteries weakens the arterial wall and can lead to blood leakage into or through the wall (a “dissected” artery) or to formation of a circumscribed bulge called an aneurysm. Brachial artery and Basilic vein. Elastic artery (histological slide) These larger vessels contain two additional layers – the internal and external elastic laminae. Notice the large amount of elastic tissue in the walls of this vessel. Pseudostratified ciliated columnar epithelium with corresponding loose connective tissue. Examples are branches of external carotid artery,radial and ulnar arteries.Composed of 3 layers-tunica intima,media and adventitia.Tunica intima shows endothelium and prominent internal elastic lamina.Tunica media is composed of mainly smooth muscle cells arranged circularly,few elastic fibres and collagen … Blood circulates throughout the body in blood vessels, propelled by the pumping action of the heart.. Vessels larger than 10 mm in diameter, such as the aorta, pulmonary trunk, common carotid, common iliac and subclavian arteries are typically elastic. Q. Normal aorta, elastic tissue stain, low power microscopic Appendix: Normal appendix, low power microscopic Artery: Normal large coronary artery, low power microscopic Artery: Normal small coronary artery, low power microscopic Artery: Normal muscular artery, medium power microscopic Artery and Vein 15x, 200x Main Slide Tunica intima > Tunica media > Tunica adventitia > 1 of 23 NEXT The diagnostic characteristic of large, elastic arteries is the presence of numerous, fenestrated elastic sheets in tunica media. This is typical of the arteries you dissected in the arm; it usually runs with a vein and nerve. Histology. B, This diagram shows a more typical anatomic definition of the carotid bifurcation. It receives deoxygenated blood from the body, sends it to the lung, receives oxygenated blood from the lungs, and then distributes the oxygenated blood throughout the body. Layers of circular smooth muscle cells, elastic fibres, and type III collagen This type of artery is known as an elastic artery (Figure 20.1.3). For descriptive purposes the respiratory system is divided into (a) conducting and (b) respiratory portions. DiFiore's Atlas of Histology with Functional Correlations (11th Ed.) Zoom out, drag into view, or rotate. Description: This is a section through a large artery. This diagram illustrates the acinus which consists of the respiratory bronchioles (rb 1, 2, 3) the alveolar duct (ad) the alveolar sac (as) and the alveoli. f.G masson trichome. Elastic arteries are located very close to the heart and are subject to a high pressure during the pumping of the oxygenated blood from the heart to the artery. Hence, they contain a high amount of elastin and collagen in the middle layer of the artery wall enabling the arteries to expand or withstand the high pressure. The tunica intima is the inner lining, consisting of endothelium and a relatively thin layer of supporting connective tissue. Which of the following constitutes the microvascular bed of a tissue? Transitional epithelium. Voluntary muscles or skeletal muscle. You might find the same components in elastic cartilage that you have found in the structure of hyaline cartilage. There is therefore diffusion from the high to the low pressure and a net movement of carbon dioxide into the alveolus to equilibrate the pressure of 40mmHg. Histology of the lung is the study of the microscopic structure of the lung. 10 seconds. Question 1. Our online histology trivia quizzes can be adapted to suit your requirements for taking some of the top histology quizzes.
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