Show:
Digestion
Lungs
Blood
Heart
Vessels
100
What is the area where most digestion and absorption occurs?
Small intestine
100
In which small structures does gas exchange take place?
Alveoli
100
What is the liquid part of the blood called?
Plasma
100
From what vessel does the right atrium receive blood?
Vena cava
100
What type of vessels have the thinnest walls?
Capillaries
200
What makes the low pH of the stomach?
Hydrochloric acid
200
What are the smallest branches of the breathing tubes in the lungs called?
Bronchioles
200
What are the small bags of chemicals called that help with blood clotting?
Platelets
200
The left ventricle pumps blood to what vessel?
Aorta
200
Which vessels collapse when empty?
Veins
300
Where is pepsin produced?
Stomach
300
What are the two large tubes entering the lungs called?
Bronchi
300
What is the function of the erythrocyte?
Carry oxygen in the blood
300
Which chamber of the heart has the thickest walls?
Left ventricle
300
Which vessels lead away from the heart?
Arteries
400
Name one adaptation of a villus that allows for absorption.
increased surface area, microvilli, many mitochondria, capillaries are close to the surface, lymph vessels to carry away fats
400
When you inhale, what happens with pressure and volume in the thorax?
Volume increases, so pressure decreases
400
Name two types of white blood cells.
Lymphocytes, phagocytes
400
The right ventricle pumps blood to what vessel?
Pulmonary artery
400
What is the function of a valve?
To prevent the backflow of blood
500
Where is a lipase produced?
Pancreas
500
List two features of alveoli that make them good for gas exchange.
Increased surface area, moist, covered in capillaries, thin walls
500
Name three substances transported by the blood.
oxygen, carbon dioxide, nutrients, urea, hormones, antibodies, heat
500
What does myogenic mean?
The heart muscle can stimulate itself to beat without nerves sending the message.
500
What is the only vein in the body that carries oxygenated blood?
Pulmonary vein