HONDROS BIO 254 FINAL EXAM-LATEST UPDATE 2025 | COMPLETE
QUESTIONS WITH CORRECT ANSWERS |, EXAMS OF NURSING
The predominant class of antibody produced after initial contact with an antigen (primary
immune response) - ANSWER-immunoglobulin M
Generally lasts longer than passive immunity. - ANSWER-active immunity
Abnormal antigens or ______________________ _________________ are present in the
plasma membrane of some cancer cells in addition to self-antigens. - ANSWER-tumor markers
Helper T cells and suppressor T cells help regulate _______________________________
function by regulating B cell and T cell function. - ANSWER-adaptive immune
A fetus receives protection from the mother through what immunity? - ANSWER-naturally
acquired passive immunity
Vaccinations provide what type of immunity? - ANSWER-Artificially acquired active immunity
Hypersensitivity of the immune system to an environmental antigen - ANSWER-allergy
Adaptive immunity is also known as? - ANSWER-specific immunity
A powerful poison that acts directly and quickly to kill any cell it attacks. - ANSWER-lymphotoxin
18. The amount of antibodies in a person's blood in response to exposure to a pathogen -
ANSWER-Antibody titer
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The most abundant circulating antibody - ANSWER-Immunoglobuin G
The specific cells that secrete antibodies - ANSWER-Plasma cells
T cells are sensitized by? - ANSWER-Presentation of an antigen by an APC
Major structures and frame work of the body that helps give shape? - ANSWER-Bones (skeletal
system)
What holds bones together? - ANSWER-Ligaments
Another function of the skeletal system? - ANSWER-Protection of the internal organs
Muscles act on bones, using them as levers to create ? - ANSWER-Movement
Bones act as a ________ for certain minerals, such as calcium and phosphorus. - ANSWER-
reservoir
Calcium levels in blood are regulated by? - ANSWER-Hormones, which stimulate deposition or
absorption from the bone matrix.
Bone is also the site of __________________, or formation of blood cells. - ANSWER-
Hematopoiesis
femur, tibia, fibula, humerus, radius, ulna, metatarsals, metacarpals, phalanges - ANSWER-Long
Bones
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carpal bones, tarsal bones, talus - ANSWER-Short Bones
Parietal, Occipital, Sternum, Frontal - ANSWER-Flat bones
bones of the vertebrae, facial bones, and sphenoid bone - ANSWER-irregular bones
patella, grow inside tendons to help them stay on track - ANSWER-sesamoid bones
Hollow cylinder with thick compact bone, shaft of bone - ANSWER-Diaphysis
Ends of bone, made of spongy bone - ANSWER-Epiphysis
Hyaline cartilage attached to articular bone surfaces - ANSWER-Articular cartilage
A dense fibrous membrane covering the surface of bones - ANSWER-Periosteum
central, hollowed-out area in the shaft of a long bone - ANSWER-Medullary cavity
Thin fibrous membrane that lines internal spaces - ANSWER-Endosteum
Bone that appears solid to the eye - ANSWER-Compact Bone
Structural units that make up compact bone that have a central canal surrounded by layers of
bone matrix - ANSWER-Osteons
small spaces in the bone matrix layer - ANSWER-Lacunae