SYSTEM FUNCTION | HOMEOSTASIS

DISCOVER GENERAL BIOLOGY 2

3

BASIC PARTS AND THEIR FUNCTIONS

PLUS Circulatory System Word Search

05/2022

CIRCUL SYSTEM F WHAT IS THE CIRCULATORY SYSTEM FUNCTION? Your circulatory system, also called the cardiovascular system or vascular system, transports oxygen, nutrients, and hormones to your body's cells to use for energy, growth and repair. The system that contains the heart and the blood vessels and moves blood throughout the body. This blood circulation keeps organs, muscles and tissues healthy and working to keep you alive. Your circulatory system also removes carbon dioxide and other wastes your cells do not need.

ATORY UNCTION HOW DOES THE CIRCULATORY SYSTEM WORK?

BLOOD THAT IS LOW IN OXYGEN COLLECTS IN YOUR HEART'S RIGHT ATRIUM, ONE OF THE HEART’S 4 CHAMBERS. IT MOVES INTO THE RIGHT VENTRICLE, WHICH PUMPS THIS BLOOD TO YOUR LUNGS WHERE YOUR RED BLOOD CELLS PICK UP OXYGEN AND GET RID OF CARBON DIOXIDE. YOU EXHALE THE CARBON DIOXIDE. THE OXYGEN-RICH BLOOD RETURNS TO YOUR HEART'S LEFT ATRIUM, THEN INTO YOUR LEFT VENTRICLE. THE LEFT VENTRICLE PUMPS OXYGEN-RICH BLOOD THROUGH YOUR AORTA, INTO YOUR ARTERIES, THEN TO ALL PARTS OF YOUR BODY. ALONG THE WAY, THE BLOOD GATHERS FOOD NUTRIENTS FROM YOUR SMALL INTESTINE. AS IT ENTERS THE CAPILLARIES, YOUR BLOOD MAKES CLOSE CONTACT WITH TISSUES AND CELLS. IT DELIVERS OXYGEN AND NUTRIENTS AND REMOVES CARBON DIOXIDE AND WASTES. NOW LOW IN OXYGEN, THE BLOOD TRAVELS THROUGH THE VEINS TO RETURN TO YOUR HEART'S RIGHT ATRIUM, WHERE THE CIRCUIT STARTS ALL OVER AGAIN.

MAIN PARTS OF THE CIRCULATORY SYSTEM Heart A muscular organ that pumps blood

Blood

throughout your body

Made up of red and white blood cells, plasma and platelets.

Blood Vessel Includes your arteries, veins and capillaries.

BLOOD HEART

BLOOD VESSELS

Circulatory System Circulatory System During Exercise During Sleep Exercise causes the heart Just like breathing, your heart rate and blood pressure are to pump blood into the circulation more efficiently different during sleep. And they change depending on as a result of more what phase of sleep you’re in. forceful and efficient Heart rate and blood pressure myocardial contractions, go down and are steadier increased perfusion of during non-REM sleep. During tissues and organs with REM sleep, they rise and are blood, and increased more varied, similar to oxygen delivery. daytime patterns.

Homeostasis, from the Greek words for "same" and "steady," refers to any process that living things use to actively maintain fairly stable conditions necessary for survival Homeostasis has become the central unifying concept of physiology and is defined as a self-regulating process by

which an organism can maintain internal stability while adjusting to changing external conditions. If homeostasis is successful, life continues; if unsuccessful, disaster or death ensues. The stability attained is actually a dynamic equilibrium, in which continuous change occurs yet relatively uniform conditions prevail.

HOW HOW DOES DOES THE THE CIRCULATORY CIRCULATORY SYSTEM SYSTEM HELP HELP IN IN MAINTAINING MAINTAINING HOMEOSTASIS? HOMEOSTASIS?

SISATSOEMOH

- FLOW

- CARDIOVASCULAR

- MYOCARDIAL INFARCTION - BEAT - WHITE BLOOD CELLS

- PLASMA

VENA CAVA

- BLOOD VESSELS - CAROTID ARTERY - PULMONARY VEIN

- HEPATIC VEIN - LIVER

- LUNGS

- OXYGEN

- STROKE - PUMP - PLATELETS

- PACEMAKER - AORTA

- PULSE

- RED BLOOD CELLS

- MESENTERIC ARTERY - HEART - CARBON DIOXIDE

- PRESSURE - ANGINA

- JUGULAR

- RENAL ARTERY

- KIDNEYS

- HEART ATTACK

REFERENCES:

https://my.clevelandclinic.org/health/body/21775-circulatory-system#:~:text=The%20circulatory%20system's%20function%20is,get%20rid%20of%20waste%20products

https://reverehealth.com/live-better/how-body-systems-connected/#:~:text=Your%20circulatory%20system%20delivers%20oxygen-

rich%20blood%20to%20your%20bones,trouble%20in%20other%20body%20systems

https://kidshealth.org/en/parents/heart.html#:~:text=The%20circulatory%20system%20is%20made,waste%20products%2C%20like%20carbon%20dioxide

https://my.clevelandclinic.org/health/body/21775-circulatory-system#:~:text=This%20muscular%20part%20of%20the,the%20blood%20to%20the%20lungs

https://www.who.int/philippines/news/feature-stories/detail/how-to-take-care-of-your-heart-health

https://courses.lumenlearning.com/boundless-ap/chapter/exercise-and-the-

heart/#:~:text=Exercise%20causes%20the%20heart%20to,heart%20to%20become%20more%20efficient.