cat internal organ functions

Thyroid cartilage

Thyroid cartilage

• protect the respiratory airways

• prevent their collapse

Trachea

• allows air to pass from the pharynx to the lungs

Epiglottis

• to prevent foods and drinks from falling down the airway

Esophagus

to carry food, liquids, and saliva from the mouth to the stomach

Lobes of the left lung (Anterior, Medial, Posterior)

• bringing oxygen into the bloodstream and removing carbon dioxide

Lobes of the right lung (Anterior, Medial, Posterior + Mediastinal)

• bringing oxygen into the bloodstream and removing carbon dioxide

Hilus of either lung

• Securing each lung in place

• Provide channel for energy to pass through

Diaphragm

• tenses to pull air into the lungs

• relaxes to allow air back out

Heart

• Pumps blood around body as heart beats

• Transports (O2, CO2, wastes, nutrients, heat, hormones)

• Regulates (pH, body temp.)

• Protects (against blood loss, disease

Pericardium

• Keeps the heart contained in the chest cavity

• Prevents the heart from over expanding when blood volume increases.

Left atrium

• act as a holding chamber for blood returning from the lungs

• to act as a pump to transport blood to other areas of the heart.

Right atrium

• receives deoxygenated blood from the superior and inferior vena cava and passes this blood through the tricuspid A-V valve to the right ventricles

Left ventricle

receives oxygenated blood from the left atrium and pumps this blood through the aortic semilunar valve into the aorta.

Right ventricle

• Receives deoxygenated blood from the right atrium and pumps this blood through the pulmonary semilunar valve into the pulmonary trunk

Septum

• acts as barrier in between the two ventricles of the heart

Coronary vessel

• to deliver oxygenated blood to the myocardium

Aortic arch

distributes blood from the left ventricle of the heart to the rest of the body

Thoracic aorta

• supplies blood to the esophagus, lungs, and the chest area, including the ribs and mammary glands

Superior vena cava

• returns de-oxygenated blood from the head, neck, arm and chest regions of the body to the right atrium

Inferior vena cava

Returns de-oxygenated blood from the lower body regions (legs, back, abdomen and pelvis) to the right atrium

Greater Omentum

• stores adipose tissue

• cushions and protects organs

• supports the blood and lymph vessels

Mesentery

• allows blood vessels, lymphatics, and nerves to reach the digestive organs

• holds the organs in place as well as stores fat

Liver

removes harmful substances, (such as ammonia and toxins) from the blood and then breaks them down or transforms them into less harmful compounds

Gallbladder

• stores bile, a fluid produced by the liver that helps break down fatty foods

Stomach

to break down and digest food in order to extract necessary nutrients from what you have eaten

Rugae of the stomach

to allow the stomach, or other tissue, to expand when needed

Pyloric sphincter

• it closes to prevent food from leaving the stomach when it is mixing food,

• prevents food from reentering the stomach once it enters the small intestine

Spleen

• it filters antigen from the blood

• it stores blood, a

• it destroys old red blood cell

Pancreas

• releases powerful digestive enzymes into the small intestine to aid the digestion of food.

• Releases the hormones insulin and glucagon into the bloodstream.

Small intestines

Absorbs nutrients, salt, and water

Duodenum

receives chyme from the stomach and digestive secretions from the liver and pancreas

Jejunum

major site and absorption of nutrients in the bloodstream.

Ileum

• the final site of the absorption of nutrients, enzymes, bile salts, and B 12 into the bloodstream

Large intestines

absorb water and make the waste a solid that will exit your body.

Cecum

to absorb fluids and salts that remain after completion of intestinal digestion and absorption and to mix its contents with a lubricating substance, mucus

Ascending colon

carries feces from the cecum superiorly along the right side of our abdominal cavity to the transverse colon

Transverse colon

to extract water and nutrients from digested foods or materials that pass through the digestive tract

Descending colon

store the remains of digested food that will be emptied into the rectum

Rectum

the storage area before the waste is illuminated from the body

Kidney (right and left)

• remove waste products from the body.

• balance the body's fluids

• release hormones which can regulate blood pressure

• control the production of red blood cells.

Renal artery

• to bring blood to the kidney

Renal vein

• To take blood away from the kidney

Ureter

• To move urine to the urinary bladder

Urinary bladder

serve as a reservoir for urine before it leaves the body