Question

State and describe the function of two organs

Answer 1

lungs and heart

Step-by-step explanation:

lungs: The lungs are the major organ that provides oxygen exchange. The lungs contain tiny bronchiol alveoli, which is the site for absorption of oxygen and elimination of carbon dioxide. The oxygenated blood is then sent back to the heart to provide tissue with the necessary oxygen. The lungs also contain tiny cilia that push foreign objects out of the lungs. This leads to coughing to keep the lungs clear from bacteria, dirt, and smoke. Smoking causes these cells to die, making it difficult for lungs to clear.

heart: The heart is a part of the cardiovascular system responsible for bringing blood to the various tissue in the body. The blood carries oxygen and white blood cells, which is a part of the immune system. The heart receives deoxygenated blood from veins and pumps it to the lungs where red blood cells pick up more oxygen for delivery. The blood is returned to the heart where it pumps oxygenated blood to all organs in the body.

Answer 2

Skeletal system:

shape/support for the body

protect some organs (brain, heart, lungs, spinal cord, etc.)

mineral storage (e.g., Ca and P)

site for muscle connections

site for blood cell formation

Muscular system:

movement

since there are three types of muscle—cardiac, smooth, and skeletal—there are specific functions for all of these

Cardiovascular system:

pump blood throughout the body

the blood will transport nutrients, oxygen, waste, and hormones

the blood also functions as a part of the immune system and allows the white blood cells/antibodies to gain access to infected/wounded areas

Excretory system:

produce and store urine in the kidneys and bladder

release urine through the urethra

Digestive system:

digest food into nutrients that can be absorbed

absorb nutrients

make certain vitamins (e.g., Vitamin K is made by bacteria in the large intestine)

Reproductive system:

the main function here is to produce offspring

another function—in line with the endocrine system— is to make hormones (e.g., testosterone and estrogen, which affect male and female characteristics)

Endocrine system:

hormone production

these hormones act throughout the body performing multiple job (e.g., blood sugar levels [insulin/glucagon], growth [growth hormone], male characteristics like facial hair [testosterone]

Integumentary system:

this is the skin

protection from some pathogens (unless you get a cut)

sensations at the skin level (texture, heat, pressure, pain)

Nervous system:

made of the central (brain and spinal cord) and peripheral nervous systems

this system transmits signals from one part of the body to another and this includes your senses

Respiratory system:

this mainly includes your lungs and trachea

the main function is the exchange of gases (oxygen and carbon dioxide)

Immune system:

the main function is to defend the body against pathogens

this is done with the help of the cardiovascular system that has white blood cells and antibodies in the blood

Step-by-step explanation: