Lymphatic System & Disease Resistance 1. Describe lymphatic system functions. The lymphatic system helps fluids circulate the body and helps defend against agents that cause disease. 2. Locate each of the following lymphatic vessels: right lymphatic duct, thoracic (left lymphatic) duct, right and left subclavian veins, and cisterna chyli.
What are the thymus gland functions? The thymus functions chiefly to develop T lymphocytes. Once mature, these cells leave the thymus and are transported via blood vessels to the lymph nodes and spleen. T-lymphocytes are responsible for cell mediated immunity, which is an immune response that involves the activation of certain immune cells to fight infection. 4.
2. Leukocytes are produced or stored in many locations in the body, including the thymus, spleen, and bone marrow. The two kinds of lymphocytes are B lymphocytes and T lymphocytes. Lymphocytes start out in the bone marrow and either stay there to mature into B cells, or they leave for the thymus gland, where they mature into T cells. Other formed elements, such as blood is a mixture of plasma and other substances which are developed through red blood cells or erythrocytes.
A)osteoclasts B)osteocytes C)osteoblasts D)osteoprogenitors E)chondrocytes Feedback: Correct! 7 CORRECT Immature bone cells that are largely responsible for building boney matrix are called ________________. A)osteoclasts B)osteocytes C)osteoblasts D)osteoprogenitors E)chondrocytes Feedback: Correct! 8 CORRECT Blood cells develop in which region of a bone? A)epiphysis B)diaphysis C)yellow marrow D) red marrow E)epiphyseal plate Feedback: Correct!
In the periosteum it surrounds the bone surface wherever it is not covered by articular cartilage, it is a sheath of dense irregular connective tissue containing osteoblasts, it functions to protect the bone, assists in fracture repair, nourishes bone tissue, and serves as an attachment point for ligaments and tendons. 4- Which kind of bone marrow is in spongy bone tissue? Red bone marrow is the type of marrow found in spongy bone tissue. 5- Which ossification method would form a femur? Endochondrial ossification would form the femur.
Essay shows the importance of bones in human body and their main role, tasks they accomplish every day. Skeletal function Six functions of the skeleton: Support: Provides structural support for the entire body Protection: Surrounds soft tissue- ex. ribs and sternum protect the heart and lungs, - skull protects the brain Movement: Skeletal muscle is attached to bone so it pulls on the bone when it contracts Mineral homeostasis: Stores calcium and phosphorus--minerals are released into the blood when needed Blood cell production: Red bone marrow produces red blood cells, white blood cells and other blood elements. Storage: Storage of minerals and lipids (fats)-yellow marrow stores fat-(found in long bones) Bone. Definition: Bones are rigid organs that constitute part of the endoskeleton of vertebrates.
When a bacteria enters the body it has antigens on its surface that are recognised by the white blood cells. B-Lymphocytes then produce antibodies with complimentary shapes to the antigens, which bind to them. This is important our immune system to work and fight off
5. A cord of connective tissue that attaches muscle to bone is a a. D. TENDON 6. A passageway connecting neighboring osteocytes in an osteon is a a. b. c. canaliculus. ! !
The process by which new epidermal cells are formed and gradually changed into the cells of the stratum corneum is referred to as keratinization. It is controlled by a number of different metabolic pathways, and an abnormality at any point can theoretically lead to conditions such as ichthyosis (a hereditary skin disease) or other serious skin
Q1 Explain what is meant by infection prevention and control. Infection prevention and control is the clinical application of microbiology in practice. Infection or disease may be caused by bacteria, fungi, viruses or prions and can result in a wide variety of infections, for example, urinary tract, wound, respiratory, blood, bone and skin infections. Prevention and control stops harmful micro-organisms being transferred from person to person by direct contact, medical equipment or the general environment. Understanding how infections occur and how different micro-organisms act and spread is crucial to preventing infections.