Transport Systems In The Human Body Flashcards
(28 cards)
What does an open blood system transport? (2)
Nutrients
Phagocytic cells
Which organisms exhibit a variety of surfaces for gaseous exchange?
Arthropods
_______ developed a closed blood system.
Vertebrates
What is one disadvantage of having a closed blood system?
Not all cells can be directly in contact with the blood.
All vertebrates, except fish developed a __________ circulation.
Double blood
What are the 2 types of circulation?
Pulmonary - lung
Systemic - body
What is the lymphatic system?
A second transport system in the human body
The fetal heart starts to contract in the ________________ of pregnancy.
4th week
The heart is divided into a left and a right half by the ________
Septum
The heart is situated in the __________
Thoracic cavity
What is the space between the lungs where the heart is found called ?
Mediastinum
What is the tough connective tissue membrane that encloses the heart called ?
Pericardium
What is the thin moist membrane that lines the inside of the pericardium called ?
Epicardium
What is the epicardium and what is it responsible for ?
A thin layer of fluid responsible for decreasing friction.
Each side if the heart consists of two _________, an_______ at the top and a _________ at the bottom.
Heart chambers.
Atrium.
Ventricle.
Blood flows from the right _______ to the ______ ventricle through the ________.
Atrium.
Right.
Tricuspid valve.
Blood flows from the left _____ to the ______ ventricle through the _____________.
Atrium.
Left.
Bicuspid (mitral) valve.
The cardiac valves consist of strong ________ _______ flaps. (3 right 2 left).
Connective tissue.
What do arteries do ?
Transports blood away from the heart to different parts of the body.
What do veins do ?
Transport blood to the heart.
What do capillary blood vessels (hair blood vessels) do ?
Connect arteries to veins.
Arteries branch out to form a network of capillary blood vessels where the exchange of substances between blood plasma and body cells occur.
When the ventricles contract, the blood can only leave the valve through the ______ ______ of the main arteries.
Semilunar valves.
Blood from the ____ side of the heart flows through the semilunar valves of the ________ artery.
Right.
Pulmonary.
What is also called a “sac valve” ?
Semilunar valves.
