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
Leya [2.2K]
2 years ago
5

Define the five systems

Biology
1 answer:
svlad2 [7]2 years ago
6 0

Answer:

Updated January 28, 2020

By Kevin Beck

Reviewed by: Lana Bandoim, B.S.

The human body that represents your physical life form has a great many tasks to perform in order to keep its owner alive and operational. At each moment, your heart and lungs are working, and a variety of other things are occurring inside you, even as you sleep. Some of these you can feel but not control, such as digestion; others will forever elude your conscious detection.

It is convenient to divide the many components of the body into systems based mainly on function. In some instances, this scheme makes body systems well localized; in others, they are anatomically dispersed throughout the body. Today, most primary sources offer a total of 11 body systems and functions, described in brief detail below.

Body Systems and Functions

As you have probably already concluded, the different human body systems have a vast array of overlapping and complementary functions. The sympathetic and parasympathetic control of heart rate is an example of the nervous system function interacting with the circulatory system. (The parasympathetic effect on heart rate is to slow it; sympathetic input accelerates it.)

Brought to you by Sciencing

The Circulatory System: Also called the cardiovascular system, the heart and blood vessels have the job of delivering oxygen and nutrients to the rest of the body and collecting waste products for removal from the body by other systems.

The Respiratory System: Your lungs allow you to inhale and exhale air to exchange gases between blood and lung space deep within the lungs themselves. The carbon dioxide produced in metabolism is "off-loaded," while oxygen from air is "on-loaded" to red blood cells.

The Skeletal System: Your bones, cartilage and ligaments provide a structural framework for the rest of you, like a scaffolding for organs and tissues. This system affords protection of vital organs and permits locomotion of the organism; the bone marrow in the middle of long bones makes immune cells.

The Muscular System: Muscles comes in three main types. Skeletal muscles move you around and perform other functions when you contract them voluntarily. Smooth muscle lines organs such as the gut and bladder and operates involuntarily. Cardiac muscle is a specialized kind of muscle in the myocardium of the heart.

The Integumentary System: This includes the skin, hair and nails, mostly the former. This physical barrier helps keep out microorganisms, regulates the moisture level of the organism and keeps temperature steady. The skin and other parts of the integumentary system work hand-in-hand with the body's immune system, such as keeping out germs and bacteria. Sometimes the immune system is listed separately from the integumentary system, leading to 12 body systems and functions rather than 11.

The Digestive System: This system converts ingested foods into smaller molecules your cells can harvest energy from.

The Nervous System: Your brain, spinal cord and a great many peripheral nerves make up this system, which is responsible for collecting, processing and transmitting information.

The Endocrine System: When you hear the word "hormones," think "endocrine system." This system regulates the internal environment of the organism via the dispersal of chemicals (hormones) that act at certain receptors throughout the body. The pancreas, pituitary gland and thyroid gland are part of this system,

The Excretory/Urinary System: Your kidneys help eliminate waste by filtering the blood, keep the acid-base levels of the blood steady, and regulate the amount of blood in the body via electrolyte and other solute balance.

The Lymphatic System: The structures in this system of channels are akin to a second circulatory system, which also includes the spleen, make cells that combat foreign invaders and help return tissue fluid to the blood vessels.

The Reproductive System: This system is responsible for creating gametes, or sex cells (testes in males, ovaries in females) that participate in fertilization and propagation of genes into the next generation of organisms. It includes the uterus in females and external genitalia regardless of sex.

Explanation:

You might be interested in
Jessica is doing an investigation to see how many birds come to the tree in her backyard each morning. She repeats her
Zolol [24]

Answer:

D

Explanation:

I t would be different because she would of only did it once so not really an investigation

8 0
2 years ago
In functional genomics, biologists use sequence information to identify the functions of various parts of genomes. Which of the
k0ka [10]

Answer:

E: specific proteins that are made by a cell under particular conditions

Explanation:

It is only specific proteins that are made by a cell under particular conditions can't be obtained from a genome sequence. In order to get information about this protein we need proteomics.

Genome sequence gives us an idea of nucleotide sequence of DNA and RNA molecules not proteins. Regulatory sequences such as promoters, enhancers, insulators, UTRs etc. all are a part of genome, rRNA genes are part of genome sequence too, non coding repetitive repeats and intron regions are also a part of genome sequence itself so option A, B & D are incorrect. Option C is also incorrect because amino acid sequence of  proteins can also be determined by genome sequences because each nucleotide triplet which is known as codon refers to a specific amino acid. Option E is correct because by genome sequence we can easily get to know about amino acid sequence but not about specific protein which is synthesized at a particular condition.

6 0
3 years ago
The transport tubes from food came down the plant are called?
slega [8]

Tubes for Transporting Food-carrying tubes Phloem Water-carrying tubes Xylem Sugar is produced In the leaves. The food-carrying tubes transport this sugar from the leaves to the other parts of the plant. The root hairs found on the roots Take in water and mineral salts from the soil.


3 0
3 years ago
HELP I NEED HELP ASAP
zhannawk [14.2K]

Answer:

The answer would be A because it would decrease

4 0
2 years ago
Read 2 more answers
Which of the following statements correctly describes the Sun?
AveGali [126]

Answer:

B

Explanation:

"Energy is generated in a red dwarf in the same way that it is in the Sun, namely through the fusion of hydrogen into helium. ... So long is the process, in fact, that the lifespan of a red dwarf can be far longer than the expected age of the universe, thought to be about 14 billion years."

8 0
3 years ago
Other questions:
  • PLS ANSWER THESE QUESTIONS WILL MARK BRAINLIEST
    7·1 answer
  • Review the criteria used to distinguish between colonial and multicellular organisms. why is volvox not considered multicellular
    5·2 answers
  • What are the 4 types of bonds carbon can form and their structures
    10·1 answer
  • What purpose would a scientists need to extract DNA?
    12·2 answers
  • The spindle apparatus disintegrates during _____. anaphase telophase interphase metaphase
    8·2 answers
  • Distance of 45km at speed of 15 km/h , how long did their journey take​
    6·1 answer
  • Build up of _<br> _has been used to try to predict earthquakes.
    11·1 answer
  • Typically, receptors for hormones or growth factors are destroyed during endocytosis, leading to a reduction in the cell's sensi
    13·1 answer
  • Which of the following terms is/are associated with the body’s capacity to produce ATP aerobically
    15·1 answer
  • Please, could someone help me with this?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!