Transport In Mammals Flashcards
(42 cards)
What circulatory system do humans have
A double circulatory system with 2 Pearys’ called the pulmonary circulation and the systemic circulation
What is an artery
A blood vessel that carries blood away from the heart to the tissues
What is a vein
A blood vessel that carries blood from the tissues towards the heart
What is the largest blood vessel in our body
The aorta
Where does the deoxygenated blood travel?
In the left atrium and the right ventricle
Where does oxygenated blood travel
In the left ventricle and the right atrium
What is the average human heartbeat per minute
72 beats
What is the skin that covers the heart?
The pericardium
What are the vena cava
The main veins that collect blood from the body and bring it to the heart
What is the heart divided by
The septum
What does the septum do?
Prevents blood from moving from one side of the heart to the other
How many chambers do our hearts have
4 chambers
What valve is on the right of the heart
Tricuspid valve
What valve is on the left of the heart
Bicuspid valve
What valve is found at the opening of the artery
Semilunar valve
What do the valves in the heat do
Make sure that blood only flows in one direction
What muscle is the heart
Cardiac muscle
What is the cardiac cycle
The contracting and relaxing of the heart
What is is called when the muscle contracts
Systole
What is it called when the muscle relaxes
Diastole
How long does one cardiac cycle take?
0.8 seconds
When is adrenaline released
When the body is under stress and it causes the heart to beat faster
What are the 3 different types of blood vessels
Arteries, capillaries and veins
What do arteries do
Take blood from the heart to the rest of the body
