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
How is a cytoskeleton like your muscles
kirill115 [55]
We are learning about that in my cell biology class.a cytoskeleton is like your muscles because it can contract like muscles which gives the cell shape,strength,and make it divide.
5 0
3 years ago
-How do you think andioxidants can help cells perform their functions? -Why do plants have more antioxidants than humans? -Do yo
Vsevolod [243]

Answer:

Antioxidants help cells perform their functions against something called free radicals. Free radicals are molecules that happen to be produced when your body breaks down food and/or when you inhale or are exposed to tobacco products. These molecules play a role in leading to diseases such as; Heart disease and cancer. When plants synthesize, they collect many non-enzymatic Antioxidants like ascorbic acid and phenolic. Since plants have many more sites of ROS generation, Therefore, they could evolve more efficient non-enzymatic Antioxidant systems than humans because of their high intake and exposure to oxygen. (answer yourself about the structure in your own words using the information I gave you). Diet relates to both the function, structure and health of your cells. Having a balanced diet helps your cells to happily work and produce energy for your daily use. A balanced diet supplies your body with nutrients so it can work effectively. Without balanced nutrition, your body is way more prone to disease, fatigue, low performance and infections.

I hope this helped you!

3 0
2 years ago
The term meaning inflammation of the spinal cord is __________. this term also means inflammation of bone marrow.
Alex
<span>Myelitis is the inflammation of the spinal cord it also means inflammation of bone marrow. Transverse myelitis is an inflammation of both sides of one section of the spinal cord. This neurological disorder often damages the insulating material covering nerve cell fibers. Transverse myelitis interrupts the messages that the spinal cord nerves send throughout the body.</span>
3 0
3 years ago
Lab safety and lab equipment worksheet answers true or false
nikitadnepr [17]
I'm sorry, but is this a question? I'm a bit confused.
6 0
3 years ago
Read 2 more answers
How many solutions can an equation have?​
gayaneshka [121]

Answer:

It depends entirely on an equation, certain equations are meant to confuse you with numerous answers so taht you have to narrow it down, some only have one or a few. It really depends on the type of problem

3 0
3 years ago
Other questions:
  • What are the obvious gaps in accessibility for any of the resources you researched? Choose an area where you would like to advoc
    5·2 answers
  • Where do scientists think early mammals came from
    6·1 answer
  • What is the proper term for the fires set<br> within the Amazon?
    14·1 answer
  • Many plant species are "winter annuals" - their seeds germinate in summer, and the plants grow vegetatively in fall and are dorm
    15·1 answer
  • Consider the case of in vitro evolution used to generate RNA molecules with ligase activity. If the researchers repeated the inv
    14·1 answer
  • Describe bio diversity in various places on earth HELP PLEASE!! ‼️
    15·1 answer
  • Which of the following occurs when air is compressed
    7·1 answer
  • What is the function of the kidneys?
    10·1 answer
  • Be my valentine? or my best friend? or my best brainly helper? :D
    6·2 answers
  • What advantage does the phylogenetic classification system have over the Linnaean system ?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!