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
miss Akunina [59]
3 years ago
8

What muscles are involved in knee flexion and extension?

Biology
1 answer:
Novay_Z [31]3 years ago
4 0
Hey, here it is!!
Can u give me a BRAINLIEST ANSWER???

Extension: Produced by the sartorius and quadriceps femoris group of muscles. Flexion: Produced by the biceps femoris, semitendinosus, and semimembranosus muscles. The popliteus muscle facilitates this movement by unlocking the fully extended knee joint.
You might be interested in
Which of the following is a function of stomata?
Vedmedyk [2.9K]


The most accurate answer is release water vapor.

Stomata are special pores in plants  found typically on the outer leaf skin layer called the epidermis. They consist of two specialized cells called guard cells that surround a tiny pore called a stoma.

Their main function is to allow water vapor and gases such as carbon dioxide and oxygen to move rapidly in and out of the leaf.

The word stomata means mouth in Greek because they allow communication between the  internal and external environments of the plant.

8 0
3 years ago
HELP ASAP will give brainly
rewona [7]

The circulatory and skeletal systems work together in the following way: skeletal system produces cells in the bone marrow while the circulatory system transports cells where they need to go (option A).

<h3>What is skeletal and circulatory system?</h3>

Skeletal system is the system that works as a support structure for your body. It gives the body its shape, allows movement, makes blood cells, provides protection for organs and stores minerals.

Circulatory system, on the other hand, are parts of an animal body comprising the heart, veins, capillaries and arteries. It circulates blood and lymph through the body.

According to the above description of both systems, the skeletal system produces blood cells in the bone marrow while the circulatory system transports these cells.

Learn more about skeletal system at: brainly.com/question/1283837

#SPJ1

4 0
1 year ago
Transport of a substance from the lumen (cavity) of an organ into one side of a cell and out the other side of the cell into the
Feliz [49]

Transport of a substance from the lumen (cavity) of an organ into one side of a cell and out the other side of the cell into the extracellular fluid is called <u>transcellular transport</u>.

The two routes of transport of substances across the epithelium of the gut are by transcellular method and paracellular method.

Transcellular transport refers to the transport of solutes across a epithelial cell layer through the cells.  The best example is the movement of glucose from the intestinal lumen to the extracellular fluid by the epithelial cells. The epithelial cells use the active transport to generate the transcellular transport. Active transport refers to the transport of substances from a region of its lower concentration to a region of its higher concentration against the concentration gradient using cellular energy.

4 0
3 years ago
Read 2 more answers
Half an organism's chromosomes come each parent. These are referred to as maternal and paternal chromosomes. Which statement des
julia-pushkina [17]
3rd Choice. It describes a processed known as crossing over which results in genetically distinct daughter cells.
6 0
3 years ago
Which cells contain only one sex chromosome? somatic cells gamete cells hybrid cells autosomal cells
DerKrebs [107]
Gamete Cells. Eggs and sperm are reproductive cells and reproductive cells are called gametes.
4 0
3 years ago
Read 2 more answers
Other questions:
  • Blood tests for the virus are 99.9% accurate when given to some- one infected and 99.99% accurate when given to someone not infe
    10·1 answer
  • Where does most of the energy come from in a shady section of a stream
    13·2 answers
  • List three recessive genetic disorders
    15·2 answers
  • How has the discovery of DNA helped us? Please give as much detail as possible.
    14·1 answer
  • Plants can be identified by specialized structures in their cells, let's take a look at an example of a specialized plant cell,
    14·1 answer
  • Cell division where sister chromatids fail to separate properly is called nondisjunction
    10·1 answer
  • Negative feedback: If blood delivery is low, the heart rate should <br>A. Increase <br>B. Decrease​
    5·2 answers
  • Place the items in order from lowest to highest degree of internal organization
    10·1 answer
  • WHAT problem was the electric toothbrush supposed to solve?
    11·1 answer
  • Particulates can:_____.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!