The primary function of the lymphatic system is:
Transporting nutrients and oxygen to tissues
Regulation of temperature, fluid, electrolytes, and pH balance
Production, maintenance, and distribution of lymphocytes
Removal of carbon dioxide and waste products from tissues
The rate of HIV transmission per coital act was highest during :
Early stage of HIV infection
Advanced stage of HIV infection
Both early and advanced stages
In the middle stages of HIV infection
An arm sling is used to support an injured
Arm or forearm
Wrist
Rib fracture
All of the above.
Mast cell secretion during an immediate hypersensitivity reaction is stimulated when antigens combine with antibodies.
IgG
IgE
IgM
IgA
One of the following is not Penicillinase susceptible:
Amoxicillin
Penicillin G
Piperacillin
Cloxacillin
Regarding the functions of T lymphocytes:
T lymphocytes mature in the thyroid gland
All T cells secrete cytotoxic materials
T cells respond to proteins on the surface of host cells
T cells secrete IgG when they are activated.
Regarding the natural immune system:
Neutrophils only destroy bacteria circulating in the blood
Macrophages use nitrous oxide to kill bacteria they have engulfed
Complement kills bacteria prior to their uptake by phagocytes.
The monocytes of the blood are the precursors of tissue macrophages.
Regarding the lymphocytes:
The lymphocytes are the most abundant white cells of the blood.
Lymphocytes only leave the blood at sites of inflammation
B lymphocytes respond to antigens in the extracellular fluid
All B lymphocytes become plasma cells after they have been stimulated
Regarding the inflammatory response:
Tissue swelling is the first stage of the inflammatory response
Mast cells secrete chemotactic agents that attract lymphocytes
Macrophages secrete vasoactive materials during the inflammatory response
The inflammatory response can be triggered by antibody binding to the surface of micro-organisms.
Infectious proteins are present in
Satellite viruses
Gemini viruses
Prions
Viroids
