anatomy & physiology
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🇬🇧 | 🇬🇧 |
Exchange of blood and tissue fluid occurs in the ? | Capillary beds |
What is lymph | Excess fluid left behind by capillary exchange that drains from tissue spaces |
How is lymph transported to reenter the blood stream | Through lymphatic vessels |
What does the lymphatic system include? | Lymph, lymphatic vessels, lymph nodes, lymphoid organs such as spleen and thymus |
Lymphoid organs | Spleen and thymus |
What do spleen and thymus do | Help filter bodys fluid , removing harmful particles before they cause damage |
How does lymph form | Blood plasma filters out the capillaries into microscopic spaces between tissue cells |
Fluid inbetween tissue cells | Intertistial fluid |
Tiny vessels that allow fluid along other substances such as dissolved protein molecule to leave the tissue spaces | Lymphatic vessels |
Allows larger molecules including protein and other substances as well as fluid itself to enter the vessel and return to gen circulation | Lymphatic capillary |
Lymph flowing through the lymphatic capillaries next move into large and larger vessels known as | Lymphatic venules and lymphatic vein |
Where do the lymphatic vessels (lymphatic venules and lymphatic vein) empty into | Right lymphatic duct and thoracic duct |
Fluid filtered from blood plasma that is not reabsorbed by blood vessels drains into | Lymphatic vessels |
Thoracic duct and right lymphatic duct | Return their lymph into the blood in large veins of the neck region |
Lymph from 3/4ths of the body drains into | Thoracic duct |
Largest lymphatic vessel in the body ? | Thoracic duct |
Lymph from the right upper extremity and from the right side of the head , neck and upper torso flows into | The right lymphatic duct |
Serves as temporary holding area for lymph moving toward its point of entry into the veins | Cisterna chyli |
What does lacteal transport | Transports fats obtained from the digestive food to the blood stream |
Lymphedema causes by prolonged infestation by filaria worms and produces elephant like limbs | Elephantiasis |
What are the lymphoid organs | Lymph nodes, thymus, spleen, tonsils |
Provides immune defense and development of immune cells | Lymphoid organs |
Where are lymph nodes located | In clusters along the pathway of lymphatic vessels |
Lymph nodes perform biological filtration a process in which | Phagocytic cells alter the contents of the filtered fluid |
Biological filtration of bacteria and other abnormal cells by phagocytosis helps prevent | Local infections from spreading |
Lymph enters the node through one or more | Afferent(meaning toward) lymphatic vessels |
The core of each nodule where new immune cells are produced | Germinal center |
Lymph exits from the node through one or more | Efferent lymphatic vessels |
Cells from a tumerous growth in the breast often spread to areas of the body by a process caleld | Metastasis |
Thymus glands does most work | Before and after birth |
Critical to functioning of the immune system | T lymphocytes or T cells |
Located one ach side of the throat and maybe removed surgically | Palatine tonsils |
Serves as a reservoir for monocytes which can quickly leave the spleen to help repair damaged tissue | White pulp of the spleen |
Lymphatic tumors | Lymphoma |
Body's overall defense system is called | Immune system |
Maintained by mechanisms that attacks any irritant or abnormal substance and we are born with these defenses | Innate immunity( nonspecific immunity ) |
A set of innate responses that often occurs in the body | Inflammatory response |
Signs of inflammation | Heat,redness,pain,swelling |
Intentional exposure to the causative agent such as vaccines, activates the immune system | Artificial active immunity |
Many of cytokines are proteins called | Interleukins |
Protein compounds normally available in the body | Antibodies(immunoglobins) |
Most abundant immune cells in the body | Neutrophils |
Complement molecules activated by antibodies from doughnut shaped complexes | Complement cascades |