Post on 01-Jan-2016
Circulatory System
Circulatory System
Function Transports
WaterOxygenWastes
Regulates temperatureRemoves disease
Circulatory System
Heart Center of the circulatory system
Large muscle
Pumps continuously
Circulatory System
Blood VesselsArteries
Vessels that take blood away from the heart
VeinsVessels that return
blood to the heart
Circulatory System
Capillaries Connect arteries and veinsDeliver nutrients to the cells Take away waste
Circulatory System
Red Blood cellsGive blood colorCarry oxygen
White Blood cellsDestroy diseasePus
Circulatory System Four Chambers
Right Atrium
Receives blood into heart from body, from veins
Right Ventricle
Pumps blood out to the lungs
Left Atrium Receives blood into heart from
lungs Left Ventricle
Pumps blood out into body via arteries
Lungs
Disorders of the heart
Foramen Ovale (infants) Opening in the heart where the blood enters the left
atrium from the right atrium.
Congestive Heart Failure Heart becomes enlarged and cannot pump properly
Heartworms Parasitic worm living in the heart and arteries
Pulmonary System
Respiratory
Respiration is the exchange of gases (oxygen and carbon dioxide) between the atmosphere and the body cells
Ventilation means the bringing in of fresh air Ventilation is also known as breathing
Respiratory System
Function: Takes oxygen from the air
Places it in the bloodstream
Removes carbon dioxide
The Respiratory System
The respiratory system is divided into upper and lower tracts
The upper respiratory tract consists of the nose, mouth, pharynx, epiglottis, and larynx
The lower respiratory tract consists of the trachea, bronchial tree, and lungs
Respiratory SystemStructures
NostrilsLarge amounts of air
Nasal ChamberMouth
Brings in air
Respiratory System
StructuresPharynx
Passageway forFoodWaterAirControlled by epiglottis
Respiratory System
LarynxVoice box (Adam’s
apple)Prevents material from
entering lungs.
TracheaLarge tube Made of rigid
cartilaginous rings
Respiratory SystemBronchi
Branch out further
LungsGas
exchange
Lungs
Gas exchange 3 lobes
Superior
Middle (smallest)
Only on right lung
Inferior
Lungs
Cow
Horse
smokerNon-smoker
Respiratory System
Alveoli Surrounded by blood vessels
Carbon dioxide is removed from blood
Oxygen is absorbed into blood
Respiratory System
Diaphragm Large muscle under the lungs
When contracted, rib cage expands and air comes in
When the diaphragm relaxes, air is forced out
Re-cap
http://www.youtube.com/watch?v=SPGRkexI_cs