Cardiovascular System Flashcards
Which are the three main functions of the cardiovascular system?
- protecting the body with white blood cells, antibodies & proteins
- regulating the body temperature, fluid pH & water content of the cells
- transporting nutrients, oxygen & hormones
What is the circulatory pathway?
a closed system of blood vessels & the four chambers of the heart
Which are the differences between arteries and veins?
The arteries (red) go travel out from the heart, and the veins (blue) travel into the heart
Identify the different parts of the heart
What is a cardiac cycle?
the activities of the heart through one complete heartbeat
Which is the vena cava?
the most important vein; it goes in the right atrium and into the right ventricle
What is hypertension?
higher than normal blood buildup against arterial walls, causing high pressure
Which are some of the causes for hypertension?
- genetic
- stress
- obesity
- smoking & drinking
- race
For which cardiovascular disorder there are normally no symptoms for?
Hypertension
What is leukemia?
cancer in the body’s blood-forming tissue
Which are some of the symptoms for leukemia?
- frequent infections
- bruises
- weight loss
- bone tenderness
- fatigue
What is an aneurysm?
a localized, blood-filled balloon in the wall of a blood cell
Which are some of the symptoms for an aneurysm?
- headaches
- nausea
- seizures
- loss of consciousness
When does a heart attack occur?
when the arteries are blocked, there is no oxygen, and some heart tissues die
Which are some of the symptoms for a heart attack?
- chest pain
- vertigo
- pain in the left side of the body
Identify the different surfaces of the heart
