science

Question 1

The main role of the – is to provide support for the body, to protect delicate internal organs and to provide attachment sites for the organs.

Answer 1

{Skeletal system}

-Major organs-
bones,cartilage, tendons and ligaments.

Question 2

the main role of the —- is to provide movement.– work in pair to’ move limbs and provide the organism with mobility. – also control the control the movement of materials though some organs,such as the stomach and intestine, and the heart and circulatory system.

Answer 2

{Muscular system}

-major organs-
skeletal muscles and smooth muscles throughout the body

Question 3

the main role of the – is to transport nutrients, gases(such as oxygen and CO2), hormones and wastes though the body.

Answer 3

{Circulatory system}

-Major system-
heart,blood vessels and blood.

Question 4

the main role of the –is to breakdown and absorb nutrients that are necessary for growth and maintenance

Answer 4

{Digestive system}

-major organ-
mouth, esophagus, stomach, small and large intestines

Question 5

the main role of the – is to relay electrical signals through the body . the – directs behavior and movement and , along with the endocrine system, control physiological processes such as digestion,circulation,ect.

Answer 5

{Nervous system}
-major organs-
brain, spinal cord and peripheral nerves

Question 6

they main role of the – is to provide gas exchanges between the blood and the environment. Primarily, oxygen is absorbed from the atmosphere into the body and carbon dioxide is expelled from the body

Answer 6

{Respiratory system}
-major organ-
nose,trachea and lungs.

Question 7

the main role of the – is to filter out cellular wastes, toxins and excess water or nutrients from the circulatory system

Answer 7

{Excretory}
-major organ-
Kidneys , ureters, bladder and urethra

Question 8

the main role of the– is to relay chemical messengers through the body . in conjunction with the – these chemical massages help control physiological process such as nutrient absorption, growth ect.

Answer 8

{Endocrine system}
-major organ-
many glands exist in the body that secrete endocrine hormones. Among these are the hypothalamus, pituitary,thyroid,pancreas and adrenal glands.

Question 9

the main role of the – is to manufacture cells that allow reproduction. In the male, sperm are created to inseminate egg cells produced in the female

Answer 9

{Reproductive system}
-major organ-

Female (top): ovaries, oviducts, uterus, vagina and mammary gland.

Male (bottom): testes,seminal vesicles and penis.

Question 10

the main role of the – is to destroy and remove invading microbes and viruses from the body. the –also remove fat and excess fluids from the body.

Answer 10

{Lymphatic/Immune}
-major organ-
Lymph,lymph nodes and vessels, white blood cells,T-and B-cell

Question 11

is main function is to act as a barrier to protect the body from outside world.

Answer 11

{ Integumentary }
-major organ-
hair,skin,nails