This topic contains a solution. Click here to go to the answer

Author Question: Normal aging of the cardiovascular system includes a. Strengthened heart contractions b. ... (Read 85 times)

nummyann

  • Hero Member
  • *****
  • Posts: 576
Normal aging of the cardiovascular system includes
 
  a. Strengthened heart contractions
  b. Decreased cardiac output
  c. Flaccid and thinned heart valves
  d. Dilation of blood vessels

Question 2

Physiological theories of aging focus on all of the following except
 
  a. Genetics
  b. Nutrition
  c. Wear and tear of the body
  d. Personality



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

nikmaaacs

  • Sr. Member
  • ****
  • Posts: 335
Answer to Question 1

B
Cardiac output is decreased as a result of the slowed heart rate and weaker cardiac contractions. This is not usually a noticeable problem unless older persons are exposed to stressors that exceed their reserves. Responses A, C, and D are incorrect. The aging heart is slower and weaker, the valves become thickened and more rigid, and blood vessels thicken and become less elastic.

Answer to Question 2

D
One physiological theory of aging focuses on genetics, stating that people are born with a genetic program that predetermines life span. Another focuses on a person's nutrition during his or her life span, and yet another focuses on the fact that all fine-tuned machineryand that includes body partswear out or become less effective as they are repeatedly used. Response Dpersonalityis incorrect because it does not relate directly to a physiological factor.




nummyann

  • Member
  • Posts: 576
Reply 2 on: Jul 11, 2018
YES! Correct, THANKS for helping me on my review


ryhom

  • Member
  • Posts: 366
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

 

Did you know?

Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.

Did you know?

The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).

Did you know?

Every flu season is different, and even healthy people can get extremely sick from the flu, as well as spread it to others. The flu season can begin as early as October and last as late as May. Every person over six months of age should get an annual flu vaccine. The vaccine cannot cause you to get influenza, but in some seasons, may not be completely able to prevent you from acquiring influenza due to changes in causative viruses. The viruses in the flu shot are killed—there is no way they can give you the flu. Minor side effects include soreness, redness, or swelling where the shot was given. It is possible to develop a slight fever, and body aches, but these are simply signs that the body is responding to the vaccine and making itself ready to fight off the influenza virus should you come in contact with it.

Did you know?

In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

Did you know?

Fewer than 10% of babies are born on their exact due dates, 50% are born within 1 week of the due date, and 90% are born within 2 weeks of the date.

For a complete list of videos, visit our video library