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
alexandr1967 [171]
3 years ago
15

Blood flow is regulated in all three types of blood vessels through ____________ and dilation.

Biology
1 answer:
IrinaK [193]3 years ago
4 0

*Blood flow is regulated in all three types of blood vessels through constriction and dilation.

*Contraction of blood vessels slows blood flow, while relaxation of blood vessels, or dilation, allows free flow of blood.

*Muscle fibers control the constriction and dilation of vessels. In the capillaries, rings of muscle called capillary sphincters control blood flow.

*The directional flow of blood in the veins is controlled with valves , which prevent backward blood flow when closed, and allow blood to flow only toward the heart when open.

Vasoconstriction and vasodilatation allow blood vessels (arteries and veins) to control blood flow and thus control the blood pressure. This is possible because of the smooth muscle cells that surround the vessels. The contraction and dilatation of those muscles is controlled by chemical signals (e.g. norepinephrine constricts the vessels, while NO dilates them).

You might be interested in
After having harvested a wild turkey, what is the best and safest way to carry it out of the woods?
jonny [76]
<span>There are two concerns. First, that the turkey meat not spoil, for which it is recommended that a cooler with ice be available to keep the meat at a safe temperature. Second, that the person carrying the turkey is safe, for which the individual should use care with knives and gloves.</span>
8 0
3 years ago
Read 2 more answers
Can someone please help
kondaur [170]

Answer:

Look at the

Explanation:

Lm

5 0
3 years ago
Read 2 more answers
Will mark brainliest!!!!..need ASAP with explanation
stepladder [879]

Answer:

its either community or ecosystem

hope this helps!

Explanation:

Term Meaning

Community All the populations of all the different species that live together in a particular area

Ecosystem All the organisms that live in a place, along with their physical environment

7 0
3 years ago
What additional characteristic (x) belongs in the central section of the above venn diagram? F. Ribosome G. Mitochondria H. Chlo
Maru [420]

Explanation:

<u>F. Ribosome</u>

Around the endoplasmic reticulum, proteins are transported.  The Endoplasmic Reticulum is a cytoplasmic membrane network. This continuous method not only raises the surface area within the cell but also conducts protein folding, synthesis, and transport.

Further Explanation:

Free ribosomes synthesize most proteins that operate in the cytosol (such as actin) or nucleus (such as DNA polymerase). Proteins that act within the endomembrane system (such as lysosomal enzymes) or those that are intended for cell secretion (such as insulin) are synthesized in the rough endoplasmic reticulum ER by bonded ribosomEs.

The rest of the ER that doesn't include ribosomes is called the smooth ER, and may contain lipids, enzymes, and other proteins. The first amino acids in the that polypeptide chain serve as a signal sequence as a protein bound for the endomembrane system is being synthesized by a ribosome. The signal sequence ensures that the ribosome binds to the ER's outer membrane and the protein gets into the ER lumen.

Learn more about cellular life at brainly.com/question/11259903

Learn more about mitochondria at brainly.com/question/8427362

Learn more about mitochondria and similar structures at brainly.com/question/2855039

#LearnWithBrainly

6 0
3 years ago
Genotype refers to the
prisoha [69]
D. Genetic makeup of the animal
7 0
3 years ago
Other questions:
  • Controlling blood glucose levels in the animation, you saw that both high blood glucose levels and low blood glucose levels are
    7·1 answer
  • Which two (2) statements are correct examples of the “structure determines function” relationship among specialized cells in an
    8·1 answer
  • If you want to selectively label RNA being synthesized by cells(and not DNA) what radioactive compound would you add to the medi
    14·1 answer
  • Describe the differnt phrases and changes of female reproductive system during a menstruation cycle
    13·1 answer
  • Measurements of the amount of DNA per nucleus were taken on a large number of cells from a growing fungus. The measured DNA leve
    8·1 answer
  • Which of the following groups of animals only uses internal fertilization?
    13·1 answer
  • 17. Which of the following is comprised primarily of fatty acids and other single tailed amphiphiles? A) lipid bilayers B) two-d
    5·1 answer
  • A skin cell should generate an exact copy of itself. Through which process would this occur?
    12·2 answers
  • A study has shown 75% of teenage boys drink 1 liter of soda per day. How many 250 ML cans of soda would a boy drink in a week if
    8·1 answer
  • ONLY ANSWER IF YOU KNOW
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!