Vignette #1 Jack Has Just Returned from the Hospital Where

question 16

Multiple Choice

Vignette #1 Jack has just returned from the hospital where Jack's father is recovering from a heart attack. The doctors told Jack that his dad's atherosclerosis is very serious. Jack and his wife, Melanie, are worried about Jack's father and also are starting to think about Jack's risk of also having heart disease in his lifetime. He sets up an appointment at his doctor's office and has his blood lipid levels evaluated for the first time. Let's see if you can answer some of the questions that Jack and Melanie have. What exactly happens in atherosclerosis?

• A) Oxidized LDL is incorporated into the lining of arteries.
• B) A blood clot travels to the brain and causes a stroke.
• C) Chylomicrons cause veins to lose their elasticity.
• D) Blood pressure is too low and dizziness occurs.
• E) b and c

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Definitions:

Catastrophism

The theory that the Earth has been shaped by sudden, short-lived, violent events, possibly worldwide in scope, contrasting with uniformitarianism which emphasizes gradual changes.

Mitosis

A kind of cell division that produces new cells having exactly the same number of chromosome pairs, and hence copies of genes, as the parent cell.

Cell Division

The process by which a parent cell divides into two or more daughter cells, critical for growth, reproduction, and repair in organisms.

Parent Cells

Cells that divide to produce daughter cells through the process of mitosis or meiosis, involved in growth, repair, and reproduction in living organisms.