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Novosadov [1.4K]
3 years ago
15

Why do blood vessels and lymph vessels have valves?

Biology
1 answer:
OLEGan [10]3 years ago
3 0
Lymph vessels have one-way valves in order to prevent the back flow of lymphatic fluid. Blood vessels have valves in order to keep the blood flowing in one direction.
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A female patient who is diabetic sustained an ST-elevation myocardial infarction (STEMI). The nurse provides discharge teaching.
Aneli [31]

Answer:

The options

A) "Medications are needed to prevent heart failure."

B) "I will take aspirin, atenolol, and captopril indefinitely."

C) "My blood pressure should be less than 130/80 mm Hg."

D) "Daily estrogen will prevent another heart attack."

The CORRECT ANSWER IS D)

D) "Daily estrogen will prevent another heart attack."

Explanation:

A reduction in the natural hormone estrogen levels could be a causative factor in heart disease increase within post-menopausal women. Estrogen is thought to show a positive impact on the inner layer of artery wall, functioning in such a way to keep blood vessels elastic.

In spite of the advantages of estrogen, the American Heart Association speaks against employing postmenopausal hormone therapy to decrease the likelihood of coronary heart disease or stroke as some research works have revealed that it vividly do not decrase the risk of heart attack but increases the likelihood of blood clots and stroke.

4 0
3 years ago
How does the motion of particles in a gas change as the gas cools? (1 point)
lara [203]
That link it takes all your information help
5 0
3 years ago
1. What is the primary source of water stored in an aquifer?
lapo4ka [179]
1. A
2. B (not 100% sure though)
3. A or B 

3 0
3 years ago
Read 2 more answers
how many molecules of water are needed to balance either of the photosynthesis equation or the cellular respiration equation?
telo118 [61]

Explanation:

ln order for photosynthesis to happen, you need six carbon dioxide (co2) molecules, six water molecules (H02), and light energy. photosynthesis one molecule of sugar (c6H1202).

3 0
3 years ago
A researcher investigates a blood disease carried by birds. She isolates an organism from the blood of an infected bird. She fin
Airida [17]

Note each of them:

Archaea is a single-celled microorganism with no nucleus

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Sarcodina is a phylum with temporary extensions of the cell. They can be parasitic.

Protista is an eukaryotic organisms that is not an animal, plant, or fungus.

The organism found is unicellular (rules out Archaea), with cell walls (characteristics of bacteria), and the ability to produce spores.

I believe that Bacteria (B) is your best answer

hope this helps

4 0
3 years ago
Read 2 more answers
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