Human body systems

By:Sabrina Benavides

Digestive system

Digestive system: Is the break down of food

-mouth:chewing breaks down the food into small pieces so i can be easier to digest while mixed with saliva.

-esophagus:is a tube that delivers food to the stomach.

-stomach:holds the food and breaks down acid and powerful enzymes.

-small intestine: made up of 3 parts duodenum,jejunum, and ileum.

-large intestine: (colon) main part of intestine passes through cecum and rectum.

-anus: last part stops poop from coming out and is specialized to detect rectal contents.

-pancreas:large gland behind the stomach

-liver:storage of filtration of blood

-gallbladder: stores bile produced by the liver

-Why digestion of large food molecules is essential? Large food molecules need to be small molecules so the can be absorbed by our body's.

-The need for enzymes in digestion? Most molecules are to big to pass so breaking it down will make it easier.

-Digestive system disorders:-Lactose intolerance cramps bloating, diarrhea-Gallstones,are pieces of solid material that for in gallbladder.


Excretory System

-Function of Excretory System:Removes unnecessary materials from the body fluids of an organism.

-Excretion:Process of eliminating waste matter.

-Disorders in Excretory System:kidney stones-deposits of calcium,Nephrosis-low blood proteins level,high cholesterol levels,elevated triglyceride levels.

Circulatory System

-Circulatory system function: delivers oxygen,nutrients,molecules,and hormones,ammonia,and removal of carbon dioxide and other metabolic waste.

-The relationship between the structure and function:the arteries transport blood away from the heart, the capillaries contain blood at moderate pressure and the veins transport blood towards the heart.

-Disorders: polyarteritis nodosa- its a disease of the small to medium sized arteries,Arteriovenous Malformations-are not normal tangles of blood vessels in a area.

Respiratory System

-Respiratory system:the function is to supply the blood with oxygen.

-Alveoli:exchange of oxygen and carbon

-Trachea:carries air into and out of your lungs

-capillaries:blood vessel

-Disorders in the respiratory system are bronchitis,asthma,alveolar

-how carbon dioxide and oxygen are transported in the blood? oxygen is carried to cells and carbon dioxide is moved away from cells.

Immune System

-Immune system:Protects against's diseases

-pathogen:causes diseases

-active immunity:production of antibodies

-Passive immunity:introduction of antibodies

-Antigen:toxin that induces an immune system response

-antibody:blood protein

- Explain why antibiotics are effective against bacteria but not against viruses?bacteria can be killed using antibiotics and viruses can be killed because they don't have metabolic pathways.

-disorders:primary immune deficiency when your born with a weak immune system.

Muscular System

function:movement of the body

disorders:Inflammatory myopathies

Endrocine system

-function:produce hormones that regulate metabolism

-homeostasis :regulate internal conditions

- negative feedback:reduced output of system

- positive feedback:increases the function in a sysyetm

-Type I Diabetes:pancreas produces little or no insulin

- Type II Diabetes:affects the way the body processes blood sugar.

Reproductive System

-function:the production of new individuals

-spermatogenesis? the formation of sperm

- oogenesis:process of egg formation

-disorders:yeast infection

Skeletal system

-function:framework of the body

-bones:support framework of the body.

-ligaments:tissue that connects one bone to another

- muscles:fibrous tissue that helps producing movement or keeps position of body parts.

- tendons: attaching muscle to bone