ques

Question 1

veins

Answer 1

brings blood to the heart from the body

Question 2

portal of entry

Answer 2

the passageway pathogens can enter to body

Question 3

Ph scale

Answer 3

scale used to specify the acidity or basicity of aqueous solutions

Question 4

portal of entry - examples

Answer 4

respiratory tract - mouth and nose
skin - wound/bacteria
gastrointestinal tract - salmonella
reproductive tract - HIV

Question 5

arteries

Answer 5

take blood away from the heart to the body

Question 6

components of blood

Answer 6

red blood cells
white cells
plasma
platelets

Question 7

capillaries

Answer 7

blood vessels that are responsible for the exchange of O2 and CO2 into and out of tissues

Question 8

cardiovascular system & BP

Answer 8

The force is generated with each heartbeat as blood is pumped from the heart into the blood vessels. The size and elasticity of the artery walls also affect blood pressure. Each time the heart beats, pressure is created inside the arteries.

Question 9

BP

Answer 9

Blood pressure is the pressure against the walls of the arteries when the heart is contracting or relaxing.

Blood pressure (BP) is needed to push blood through the arteries and arterioles to an organ or tissue.