1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Taya2010 [7]
3 years ago
8

Raynaud's disease results in brief periods of vasospasms. this disease affects blood supply to fingers and toes. it is also know

n to affect blood flow to lips, ears, nose and nipples. during what is called as "raynaud's attacks", the skin may turn white and then blue for a short time. which of these best describes why these symptoms occur?
Biology
2 answers:
faltersainse [42]3 years ago
5 0

The answer is excessive narrowing of blood vessels.

When exposed to the cold, our body tries to reduce its heat loss by tightening the arterioles under the skin (vasoconstriction). This mechanism increases the flow of blood into the deep veins and allows the body to maintain its internal temperature.

In people with Raynaud's disease, this reaction is excessive: the nerves that control the tightening of arterioles are hypersensitive and cause spasm, rather than normal vasoconstriction. When the spasm stops, the arterioles dilate again, restoring blood circulation.

balu736 [363]3 years ago
4 0
It results in the a narrowing of the arteries which slow blood flow 
You might be interested in
What part of the flower contains the pollen
musickatia [10]
The part of the flower that contains pollen is called the <span>Stamen</span>
4 0
3 years ago
John wants to show the evolutionary relationship between a lion and a cat and group them based on their similarities and a commo
kakasveta [241]
<span>John can use Cladistic Analysis as an approach to trace the classifications of the lion and cat because he can trace a common ancestor for them due to the cat and the lion having the same characteristics and traits. They are considered to be closely related because they share a common ancestor which means that they are closely connected. The earliest discovery of using this method was by Peter Chalmers Mitchell in 1901 as he was studying how different types of birds belong to the same ancestry.</span>
8 0
3 years ago
Read 2 more answers
Can someone help me with this chart it’s about waves. Questions 12-16
timofeeve [1]
Science has shown that smoking causes cancer. which is an example of how society responded to this information
6 0
3 years ago
What are the symptoms of lung cancer before treatment
Hatshy [7]
Coughing can be a symptom along with shortness of breath

8 0
3 years ago
Which of the following could limit the growth of a population of squirrels in a local park?
leonid [27]

Answer:

D

Explanation:

They would be dying off, or leaving to get away from the disease

6 0
2 years ago
Read 2 more answers
Other questions:
  • For photovoltaic cells, the potential difference for two silicon cells in series will at most be ________.
    6·1 answer
  • What subunits are proteins broken down into during digestion?
    13·1 answer
  • Bryophytes are known as non-vascular plants. What makes them non-vascular?
    6·1 answer
  • What strategies will a nurse include when planning an educational program for adults that ensures student learning?
    7·1 answer
  • a cactus with long spines protects itself from animals better that a cactus with short spines. according to natural selection, _
    14·2 answers
  • What is a producer in biology?
    7·1 answer
  • The geyser Old Faithful in Yellowstone National Park is powered by what kind of energy?
    15·1 answer
  • 4. Why are rattlesnakes necessary to the balance of life in a forest?
    7·1 answer
  • Taxonomy is ________
    13·1 answer
  • A. Bone <br><br> B. Organ systems <br><br> C. Organs<br><br> D. Specialized cells
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!