File Name: types of tissues and their functions .zip
Cardiac muscle tissue, or myocardium, is a specialized type of muscle tissue that forms the heart. This muscle tissue, which contracts and releases involuntarily, is responsible for keeping the heart pumping blood around the body. The human body contains three different kinds of muscle tissue: skeletal, smooth, and cardiac. Only cardiac muscle tissue, comprising cells called myocytes, is present in the heart.
Bone tissue is continuously remodeled through the concerted actions of bone cells, which include bone resorption by osteoclasts and bone formation by osteoblasts, whereas osteocytes act as mechanosensors and orchestrators of the bone remodeling process. This process is under the control of local e. An imbalance between bone resorption and formation can result in bone diseases including osteoporosis. Recently, it has been recognized that, during bone remodeling, there are an intricate communication among bone cells. For instance, the coupling from bone resorption to bone formation is achieved by interaction between osteoclasts and osteoblasts.
There are four types of tissues found in animals: epithelial tissue, connective tissue, muscle tissue, and nervous tissue. In this lab you will learn the major.
Different types of tissues can be found in different organs. There may be various sub-tissues within each of the primary tissues. Epithelial tissue covers the body surface and forms the lining for most internal cavities. The major function of epithelial tissue includes protection, secretion, absorption, and filtration.
The term tissue is used to describe a group of cells that are similar in structure and perform a specific function. Histology is the the field of study that involves the microscopic examination of tissue appearance, organization, and function. Tissues are organized into four broad categories based on structural and functional similarities.
Anyone can learn for free on OpenLearn, but signing-up will give you access to your personal learning profile and record of achievements that you earn while you study. Start this free course now. Just create an account and sign in. Enrol and complete the course for a free statement of participation or digital badge if available. The structure of each tissue of the body is organised to carry out its own specific functions, and this is reflected in the arrangement of the cells and its histological appearance. As you should already be aware, different tissues are capable of different functions.
The cells within a tissue share a common embryonic origin. From the evolutionary perspective, tissues appear in more complex organisms. For example, multicellular protists, ancient eukaryotes, do not have cells organized into tissues. Although there are many types of cells in the human body, they are organized into four broad categories of tissues: epithelial, connective, muscle, and nervous. Each of these categories is characterized by specific functions that contribute to the overall health and maintenance of the body. A disruption of the structure is a sign of injury or disease.
Я не намерен информировать президента за спиной директора.
- Иногда человек в моем положении вынужден лгать людям, которых любит. Сегодня как раз такой день. - В глазах его читалась печаль. - То, что сейчас скажу, я не собирался говорить никому.
Взгляните. Офицер подошел к столу. Кожа на левой руке загорелая, если не считать узкой светлой полоски на мизинце. Беккер показал лейтенанту эту полоску. - Смотрите, полоска осталась незагорелой.
Она часто работала с ним допоздна и, единственная из всех сотрудников, нисколько его не боялась. Соши посмотрела на него с укором и сердито спросила: - Какого дьявола вы не отвечаете. Я звонила вам на мобильник. И на пейджер .
Джабба окончательно убедился: директор рискнул и проиграл. Шеф службы обеспечения систем безопасности спустился с подиума подобно грозовой туче, сползающей с горы, и окинул взглядом свою бригаду программистов, отдающих какие-то распоряжения.
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