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Which type of membrane lines cavities that DO NOT open to the outside and functions to reduce friction. Network of organelles suspended in liquid cytosol, Part of the cell that is the supportive framework formed by anetwork of protein rods and tubules. To do this, they bind to collagen itself, GAGs like heparan sulfate and cell membrane receptors, such as integrins. The flexibility of LCT is also due to elastic fibers, not just due to the high content of ground substance. contractile unit of muscle. Reticular fibers can be made visible by the periodic-acid Schiff reaction or silver staining procedures, giving them a black and threadlike appearance. Which type of tissue is found throughout the body and covers the body, lines organs, found in the inner lining of body cavities and hollow organs? All cells, resident and transient, perform their functions inside the ECM component of connective tissue. ______ protects underlying tissues and forms structural models for bones. Type of epithelial tissue that is specialized to change in response to increased tension. What type of cell originates as a white blood cell, is usually attached to fibers in connective tissue but can detach, and functions as a scavenger cell (phagocytosis)? reticular fibers. Type of epithelial tissue that is very thick and made up of many layers, that makes up the epidermis (skin)? They help stabilize the ECM by binding ECM proteins like GAGs, collagens and proteoglycans. The brainstem consists of 3 parts, list them. 1. The fibroblasts and myofibroblasts begin secreting new ECM, filling the damaged area with fibro-collagenous material. ______ enable cells to bind or touch, which helps white blood cells to slow and guide them to the site of an ingury, and also helps establish connections between nerve cells that underlie learning and memory. answer and to go to next slide. Type of connective tissue that is very strong, forms parts of tendons and ligaments (can withstand a lot of pulling), and has poor blood supply. This process can result in normal functioning, but more often than not, the tissue is not completely restored. The cytoplasmic processes of different myofibroblasts can contact each other. What is the name for the connective tissue that forms delicate, thin membranes that binds the skin to the underlying organs and fills spaces between muscles? Lysosomes are abundant and can be identified using a stain for acid phosphatase activity. Read more. The layer below the dermis is called what? Which part of the brainstem functions as a two-way conduction pathway between the spinal cord and higher brain centers such as cardiac, respiratory, and vasomotor control center, Which part of the brainstem is a two-way conduction pathway between areas of the brain and other areas of the body, influencing respiration, Which part of the brainstem is a two-way conduction pathway used as a relay for visual and auditory impulses. In addition to the typical characteristics of activated fibroblasts described above, they also exhibit characteristics of smooth muscle cells upon examination with a transmission electron microscope (TEM). They are found scattered in the cytoplasm and bound to rough ER. Sweat gland that causes odor when metabolized by bacteria, becomes active at puberty, and are activated when emotionally upset, frightened, or in pain. Protein that projects from the cell membrane's outer surface, Protein that extends from the outer surface at one end of the membrane and dips into the cytoplasm at the other end of the membrane (functions as receptors). Type of muscle tissue found only in the heart, which forms the bulk of the heart and helps pump blood through it. A part of the brain called the diencephalon has what two brain areas within it? Wondering how you're going to consolidate your knowledge? Cell organelle that prepares cellular products for excretion by exocytosis. Both are made of connective tissue with fibers of collagen extending from one to the other, making the border between the two somewhat indistinct. If you are curious to find out even more information about loose connective tissue, take a look below: Ground substance is a clear and viscous gel with a high water content. The ground substance occupies a high volume in comparison to the fibers. How many bones are there total in the human skeleton? This lipid mass compresses the nucleus, flattens it and displaces it to one side, giving it a signet-ring appearance when stained with H&E. Which type of epithelial tissue appears stratified, but isn't, and is commonly ciliated? Mast cells are distributed in the connective tissue throughout the body, with the exception of the brain and spinal cord. Which type of gland loses small portions of glandular cell bodies during secretion? It looks like your browser needs an update. Body cavity membrane: which serous membrane lines the heart? Which type of epithelial tissue is several layers of columnar cells, in which the superficial cells are elongated and the basal cells are cuboidal? It appears as a virtually empty background filled with cells and fibers. Macrophages are phagocytes and they protect the LCT by ingesting potential pathogens and cell debris. What type of connective tissue is rigid and provides support, frameworks, and attachments? How many bones are in the vertebral column, Cervical vertebrae (7) Thoracic vertebrae (12) Lumbar vertebrae (5) sacrum, and coccyx, Name the bones and number in the vertebral column from anterior to inferior, Name the bones and number of the thoracic cage, Humerus (2), radius (2), ulna (2), carpal (16), metacarpal (10), phalanx (28), Name the bones of the upper limbs and number of each, Femur (2), tibia (2), fibula (2), patella (2), tarsal (14), metatarsal (10), phalanx (28), Name the bones and number of the lower limbs. Loose connective tissue (LCT), also called areolar tissue, belongs to the category of connective tissue proper. Kenhub. The nucleus also appears to be undulated. They synthesize both types of fibers and the complex carbohydrates of the ground substance. Further repair begins with proliferation and differentiation of mesenchymal cells from the periphery of normal tissue into fibroblasts and myofibroblasts. The blood vessels within the subcutaneous layer branch and form a network between the dermis and subcutaneous layer called ________. T issue-resident macrophages (histiocytes) are derived from monocytes that mature after migrating into connective tissue. It is also a component of the lamina propria of the digestive and respiratory tracts, the mucous membranes of reproductive and urinary system, the stroma of glands, and the hypodermis of the skin. Skeletel muscles are controlled by conscious effort and are called __________, Smooth and cardiac muscle tissue can not be controlled by conscious effort and is called _____. A sensory receptor within the dermis that is stimulated by heavy pressure is called _________, A sensory receptor located within the dermis that senses light touch is called __________, Sensory receptors within the dermis that respond to temperature changes or to factors that can damage tissues and extend into the dermis are called _________. When receptors measure deviations from the set point, effectors are activated and conditions are returned toward the set point and effectors gradually shut off. The fibers form a delicate and branched mesh that supports the resident cells of LCT and provide early mechanical strength. Which skin layer is thicker, and contains connective tissue with collagen and elastin fibers, smooth muscle tissue, nervous tissue, and blood? Â. Reticular fibers are the most common type of fibers in LCT. Muscle fibers are branching. They are stained by eosin, although not readily, so they cannot be easily distinguished from collagen fibers. Once osteoblasts are surrounded by the bone matrix (lamellae), they become fixed and are known as ______. Which type of gland secretes entire cells along with fluids? The cytoplasm is more extensive, displays basophilia due to increased amounts of rough endoplasmic reticulum (rER) and a prominent Golgi apparatus. Situated virtually at every site, both internally and externally, it is crucial for providing strength, elasticity and metabolic support for all other tissues. Cell organelle that participates in protein and lipid molecule synthesis, ER that synthesizes lipids, absorbs fats from the digestive tract, and breaks down drugs. tubular secretion, tubular reabsorption, and secretes glandular products, Simple cuboidal cells function in _ and _ and _. There are seven types of GAGs in total, the most predominant one being hyaluronate (hyaluronic acid).

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