Blood Components-- Plasma, Buffy Coat, Platelets, _____________.
Leukocytes
100
After just two weeks of spaceflight twenty percent of returning astronauts experience difficulty standing up without getting dizzy, a condition called orthostatic
intolerance
Double jeopardy. Double the points.
100
Diffusion only works well over ________ distances.
short
100
Blood then returns to the right side of the heart, this is called the ________ circuit
systemic
100
This oxygenated ____________ then returns to the heart completing the pulmonary circuit.
blood
200
ABO Blood _________
Types
200
By studying the impact of virtual ____________ on the circulatory system, scientists have learned a lot about how it functions on earth.
weightlessness
200
In simple one-celled ____________, like the amoeba, this is accomplished through a process called diffusion.
organisms
200
The left side of the heart receives oxygenated blood from the lungs and _________ it to cells and tissues throughout the body.
pumps
200
_____________ diffuses in the opposite direction and is taken up by red blood cells
Oxygen
300
Every system in the human body is effected by the ___________ of space.
microgravity
300
We are a ___________ organism.
multicellular
300
_______________ is simply the random movement of molecules from a region of higher concentration to one of lower concentration.
Diffusion
300
The circulatory system consists of blood contained in a network of _________________ called the vascular system that's connected to a pump, the heart.
vessels
300
The _______ side of the heart receives blood returning from the tissues and pumps it toward the lungs
right
400
Astronauts also experienced circulatory problems, such as arrhythmias, or _______________heartbeats
abnormal
400
The longer they (astronauts) stay in zero gravity the more _________________ are the effects.
pronounced
400
Using diffusion, one-celled organisms (amoeba can easily __________ gasses, food and waste materials with the environment through their cells walls.
exchange
400
It's in the capillaries where the diffusion process works to exchange _________ of oxygen and nutrients for carbon dioxide and other waste products of nearby cells.
molecules
400
In the lung capillaries, carbon dioxide diffuses through vessel walls into tiny air sacs called ____________and is exhaled.
alveoli
Double jeopardy. Double the points.
500
They also suffer from ______________, which is a reduced number of red blood cells that carry oxygen to the tissues.
anemia
500
All of the cells in our bodies need ____________ and nutrients to survive and do their work.
oxygen
500
Large multi-cellular organisms like human beings need a rapid delivery system to bring the oxygen and nutrients close enough to each of our cells for the diffusion process to work, and that's the role of the _____________ system.
circulatory
500
From the heart, blood flows through large muscular _______, then into smaller and smaller arteries, then arterioles, and finally through capillaries.
arteries
500
After leaving the_______________, blood is collected into venules, the smallest of the veins, then into veins of increasing size until it reaches the heart.