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
SVEN [57.7K]
2 years ago
8

Which muscle functions in extensions of the digits of the hand?

Biology
1 answer:
densk [106]2 years ago
5 0
Hello!

Extensor Digitorum:

The extensor digitorum is the main extensor of the fingers. Attachments: Originates from the humerus, splitting into four tendons at the wrist which travel through the carpal tunnel and attach to the digits. Actions: Extends fingers.


Hope it helps!

Bye and don’t forget I’m proud of you!<3
You might be interested in
Which would have a greater effect a frameshift near the beginning or the end of a gene
natka813 [3]

end tf lamebehind body


7 0
3 years ago
Once pathogens have penetrated the non-specific barriers, they are confronted by macrophages and natural killer cells. how do th
laiz [17]

Answer:

             When a pathogens cross non-specific barriers (skin) they disturb the homeostasis of the body. however inside body they are confronted by different types of white blood cells which are responsible for bringing homeostasis again in the body. these are described below.

Role of macrophages in maintaining homeostasis

Macrophages are white blood cells (phagocytes) constantly patrolling in the body and destroy other cells by engulfing and ingesting them through the process of phagocytosis. These are produced in bone marrow cells as monocytes which have short life of only 10-20 hours. Once monocytes leave the blood they become macrophages. From bone marrow to the blood, macrophages are transported to the area of the body where they are needed. Macrophages engulf the whole body, after digesting particles (bacteria) can extrude the residual particles. Thus, provide protection by trapping and destroying microorganisms entering the tissue. They also secrete different proteins. Some of these proteins trigger the maturation of monocytes into macrophages, thereby increasing their numbers. Another protein interleukin-1 signals the brain to raise the body temperature, producing fever. The higher temperature aids the immune response and inhibit the growth of invading microorganisms.

Role of natural killer cells in maintaining homeostasis

They are another class of white blood cells that don’t directly attack invading microbes. Instead they strike at the body’s own cells that have been invaded by viruses. Virus infected proteins bear viral proteins on their surfaces. Natural killer cells recognize and kill cancerous cells. They secrete proteins into plasma membrane of the infected or cancerous cells. They also secrete enzymes that break up some of the molecules of the target cells, as a result the target cell soon dies.


6 0
3 years ago
What is the carbon cycle
Andrews [41]
The carbon cycle is the biogeochemical cycle by which carbon is exchanged among the biosphere, pedosphere, geosphere, hydrosphere, and atmosphere of the Earth. Carbon is the main component of biological compounds as well as a major component of many minerals such as limestone.
3 0
3 years ago
Define mutagen and describe how mutagens are used in genetic research.
Salsk061 [2.6K]

A mutagenic agent is any chemical, physical or biological compost that can induce a mutation in the cell's DNA, making this mutation pass to the next generation.

Mutagenic agents are widely used in the fields of biotechnology, genetic engineering, medicine and agroindustry. This is because these agents have helped in the advancement and development of new technological tools.  

In genetic research some bacteria and viruses are used by agribusiness companies to obtain transgenic beings. These mutagenic (biological) agents act as vectors of laboratory-created genes that will insert these genes into an organism to be modified. It could be, for example, a gene that will improve maize resistance against a pest. Thanks to mutagenic agents, this genetic information can be passed on to the organism, in this case, the plant.

3 0
3 years ago
_____ is a public relations strategy that involves getting a product, service, or company name to appear in a movie, television
atroni [7]

Answer:

product placement

Explanation:

4 0
3 years ago
Other questions:
  • calculate the potential energy of a rock with a mass of 55kg while sitting on a cliff that is 27 m high
    11·1 answer
  • Drag the tiles to the correct boxes to complete the pairs.
    13·1 answer
  • ____________ smoking is the most toxic way to smoke tobacco.
    5·1 answer
  • The energy needed to get a reaction started is known as ________________________.
    15·1 answer
  • During which period did the first vascular plants appear? A. Cambrian B. Ordovician C. Silurian D. Devonian
    8·2 answers
  • When scientists explore the world around them, they are:
    8·2 answers
  • 1. What is the pH range for an acid?
    8·1 answer
  • Why do you think plastic is a good choice for kayak material?
    11·1 answer
  • True or False
    9·1 answer
  • Which trait is most likely an acquired trait in dogs?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!