USAHS Pathophysiology Unit 3 Test Questions with All Correct Answers
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Course
USAHS Pathophysiology
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USAHS Pathophysiology
USAHS Pathophysiology Unit 3 Test Questions with All Correct Answers
What is signal pathway modulation? - Answer- When one ligand can trigger two different responses; this is determined by receptor type and intracellular pathways, NOT the ligand
What is an example of signal pathway modulatio...
USAHS Pathophysiology Unit 3
Test Questions with All Correct
Answers
What is signal pathway modulation? - Answer- When one ligand can trigger two
different responses; this is determined by receptor type and intracellular pathways, NOT
the ligand
What is an example of signal pathway modulation? - Answer- Blood vessels constricting
or dilating depending on their receptor type
Define tonic control (of homeostatic reflex pathways) - Answer- Variations in the
intensity of the agent, yet the agent always remains on
Define antagonistic control (of homeostatic reflex pathways) - Answer- Ability of certain
factors to have opposing effects on the target
What are four ways that a cellular responses can be generated as following a signal
transduction? - Answer- 1. Motor proteins
2. Enzyme activity
3. Membrane receptors and transporters
4. Gene activity and protein synthesis
Define differentiation - Answer- Normal cell changes to different tissues
Define dysplasia - Answer- Vary from normal size and shape
Define hyperplasia - Answer- Increase in number of cells, increase in tissue mass
Define neoplasia - Answer- Uncontrolled growth of cells
Define metaplasia - Answer- Adult cell changes from one type to another
Define tumor - Answer- Abnormal new growth
Cervical dysplasia is an example of what type of cellular growth? - Answer- Dysplasia
Pregnancy is an example of what type of cellular growth? - Answer- Hyperplasia
, Change from columnar to squamous cells in the respiratory tract is an example of what
type of cellular growth? - Answer- Metaplasia
(T/F) All swelling can be considered a tumor. - Answer- False
What condition is considered swelling but not a tumor? - Answer- Gout
What is gout? - Answer- Inflammatory arthritis due to deposition of uric acid crystals
(T/F) all neoplasia can be considered a tumor. - Answer- False
Leukemia and multiple myeloma are examples of what type of cellular growth? -
Answer- Neoplasia
What characteristics define a tumor as benign? - Answer- - slow expansion
- limited growth potential
- compresses surrounding tissues
What characteristics define as tumor as malignant? - Answer- - fast expansion
- uncontrollable growth
- invades soft tissues
Benign tumors have _____ external surfaces while malignant tumors have _____
external surfaces. - Answer- smooth, irregular
What function does a capsule serve for benign tumors? - Answer- Does not invade and
limits soft tissue
The lack of capsule for malignant tumors results in what? - Answer- Invasion and
infiltration of surrounding tissues
Which type of tumor can experience necrosis and hemorrhage? - Answer- Malignant
Nuclei of benign tumors are _____ and _____, while malignant tumors have _____ and
_____ nuclei. - Answer- - uniform, normal size
- large, pleomorphic
Which tumor type has well differentiated cells? - Answer- Benign
Which tumor type has anaplastic cells? - Answer- Malignant
Cytoplasm that is well developed can be found in which type of tumor? - Answer-
Benign
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