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Science - Obj 1-14
Terms in this set (50)
This system works as the transportation highway for the body. It consists of the heart, blood, and blood vessels. It transports substances such as oxygen, carbon dioxide, and nutrients in the body.
Veins, Arteries and Capillaries
Blood vessels that carry blood away from the heart.
Connect the arteries and veins, smallest of the blood vessels, where oxygen, nutrients, and wastes are echanged within the tissues.
Blood vessels that carry blood back to the heart
Blood that is rich in oxygen. Usually carried in arteries.
Blood that is not rich in oxygen. Usually carried in Veins.
A flap of tissue in the heart or a vein that prevents blood from flowing backward.
Largest artery in the body.
Blood vessels that bring oxygenated blood to the heart from the lungs.
Divides the right and left chambers of the heart.
Heart muscles that have properties of skeletal and smooth muscles.
Beat of the heart as felt through the walls of the arteries.
The noise caused by heart valves closing.
Red Blood Cell
Blood cells that carry oxygen from the lungs to the body cells.
White Blood Cell
A blood cell that fights disease.
Small parts of the blood that cause clotting.
A yellowish liquid inside blood vessels.
Transport fluid for insects.
Word Equation for Respiration
Oxygen + Glucose -> Water + Carbon Dioxide + Energy
Inhaling and exhaling of Oxygen and Carbon Dioxide.
Changing of gases through diffusion in alveoli.
Warms and filters air
Passage for air to enter or exit.
Rings of Cartilage
Keeps the trachea open.
Two tubes through which air enters the lungs.
Organs for gas exchange, contain millions of alveoli.
Provide large surface for gas exchange. Many blood capillaries are around them.
Sheet of muscle at the bottom of the chest that changes the space of the chest.
What do humans use for Gas exchange?
What do insects use to Gas exchange?
What do fish use to Gas exchange?
Two chambered hearts
Birds and Humans have...
Four chambered hearts
Three chambered hearts
To break something physically.
When a new substance is created or formed.
Long sharp canine teeth.
Sharp molars for slicing meat.
Chisel-like incisors for biting.
Broad flat molars for grinding.
Sometimes have sharp canines.
Broad, flat molars with rough surfaces.
Chisel-like incisors for cutting plants.
Often have a gap between the incisors and the molars to allow space to reposition food asa it is chewed.
This breaks down food mechanically and contains the Epiglottis.
This breaks down food Mechanically. It transports bolus from the mouth into the stomach. The Peristalsis (a wave of muscle contractions) moves the bolus along the oesophagus
Breaks down food mechanically and chemically. A bag that contains a liquid described as gastric juices. The stomach squeezes and churns up the bolus with the gastric juices, creating a soup-like mixture called chyme.
This where most food digestion takes place due to the many enzymes present in the S.I. Contains Villi to collect nutrients.
Bile is made in the liver and travels to the S.I. to help digest fats.
Produces pancreatic juices that contain enzymes that help digest carbohydrates (starches and sugars), fats and proteins in the S.I.
Main site of water absorption
Vitamins and minerals also absorbed here
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