Cardiovascular System
What are the four main parts of the heart?
Left, and right atrium, left, and right ventricle
What are the three main types of blood vessels?
Capillaries, arteries, and veins
What are the three types of blood cells?
RBC (Red Blood Cells), WBC (white Blood Cells), and platelets
What are pathogens?
Microorganisms or infectious agents that can cause disease in their host
What are the numbers in blood pressure called?
Top is systolic, bottom is diastolic
What do capillaries do?
Deliver nutrients and oxygen to cells throughout your body
What do red blood cells do?
Carry oxygen from the lungs and deliver it throughout our body
Why is the skin important?
It regulates body temperature, provides sensory information, and is the first layer of "defense" when protecting against a pathogen
What are the four main functions of the heart?
The heart pumps blood, maintains blood pressure, routes blood to the lungs, and regulates blood flow
What do veins do?
Carry oxygen-poor blood from the body's tissues back to the heart
What do white blood cells do?
Helps the body fight off infections and other diseases
What are the five types of pathogens?
Viruses, bacteria, fungi, protozoa, and helminths
What are the different levels of hypertension?
Elevated blood pressure, stage 1 hypertension, stage 2 hypertension, and hypertensive crisis
What do arteries do?
Carry oxygenated blood away from the heart to the rest of the body
What do platelets do?
Form clots and stop or prevent bleeding
What are the three layers of skin?
Epidermis, dermis, hypodermis
What is arteriosclerosis?
Vascular disease where the blood vessels carrying oxygen away from the heart become damaged
What do veins contain that arteries do not?
One-way valves
What are the three types of blood cells actual names?
RBC: erythrocytes, WBC: leukocytes, Platelets: thrombocytes
What is the difference between innate and acquired immunity
Innate is present from birth and non-specific, acquired develops over time after being exposed to a pathogen