#Question id: 33387
#Unit 1. Molecules and their Interaction Relevant to Biology
#Question id: 11082
#Unit 7. System Physiology – Animal
A 67-year-old man has a solid tumor that pushes
against an airway partially obstructing air flow to the distal alveoli. Which
point on the ventilation-perfusion line of the O2-CO2 diagram corresponds to
the alveolar gas of these distal alveoli?
#Question id: 11000
#Unit 7. System Physiology – Animal
What is her ventricular ejection fraction?
#Question id: 1515
#Unit 4. Cell Communication and Cell Signaling
Following statements are regarding to metastasis (using breast carcinoma cells as an example).
A. Cancer cells leave the main tumor and attack the basement membrane, using extracellular matrix (ECM) fibers to reach the blood vessels.
B. The cancer cells can be attracted by signals such as epidermal growth factor (EGF), which can be secreted by macrophages.
C. At the blood vessels they penetrate the layer of endothelial cells that forms the vessel walls and enter the bloodstream.
D. Carcinoma cells penetrate the extracellular matrix and blood vessel wall by extending “invadopodia,” which produce matrix metalloproteases and other proteases to open up a path.
Which of the following statement shows process of angiogenesis?
#Question id: 12206
#Unit 7. System Physiology – Animal