Chapters 16&17 Flashcards
What is the name given to the neurons that monitor carbon dioxide leveled in the blood and are located in the carotid and aortic arteries?
Chemoreceptors
A (long, short) blood vessel with a (small, large) diameter would have the greatest resistance to blood flow.
Long
Small
Pulmonary circulation goes from the (right, left) (atrium, ventricle) to the (right, left) (atrium, ventricle)
Right ventricle
Left atrium
Which blood vessel(s) contain blood with the highest oxygen content?
Pulmonary veins
From which major blood vessel do all systemic blood vessels branch?
Aorta
Where is the cardiovascular center located?
Medulla
Which circulatory route brings blood to the tissues and back to the heart?
Systemic
Which circulatory path carries blood rich in substances absorbed from the gastrointestinal tract?
Hepatic portal
(Arteries, veins) (closest to, farthest from) the heat have the lowest blood pressure.
Vein, closet to
Vascular resistance is primarily to due which factor?
Fiction between blood-walls
When the left ventricle contracts, what term is given to the pressure in arteries that is generated?
Systolic
In fetal circulation p, which structure connects the fetal pulmonary trunk to the aorta, allowing much blood to bypass the lungs?
Ductus arteriosus
Stimulation of the ______ would cause the heart rate to decrease.
Vagus nerve
In the fetus, what is the opening that allows blood to pass directly from the right atrium to the left atrium?
Foramen ovale
With aging, cardiac muscle fibers ____ in size.
Decrease
Defenses of the body that are present at birth are referred to as _____ immunity
Innate
The fetal circulation differs from the adult circulation because of which organ system that is nonfunctional?
Respiratory
As blood passes from the superior and inferior vena cave to the lungs, it moves through the (right, left) (atrium, ventricle) to the (right, left) (atrium, ventricle) and out through the (pulmonary trunk, pulmonary veins).
Right atrium
Right ventricle
Pulmonary trunk
Carry blood away from the heart
Arteries
Vessels with high blood pressure
Arteries
Vessels with the fastest flow
Arteries
Vessels that exchange food and waste between blood and tissues
Capillaries
Vessels that return interstitial fluid to the bloodstream
Lymphatic vessels
Vessels with slowest blood flow
Capillaries
Vessels with thick muscle layer
Arteries
Vessels si very thin walls; only have a single layer of cells
Capillaries
Vessels with a very thin muscle layer
Veins
Vessels that exhibit a pulse
Arteries
Vessels that bring to almost every cell in the body
Capillaries
Known as “exchange vessels”
Capillaries
What are the cells that migrate to the Thymus and when mature are AB,e to attack microbes directly?
T-Cells
What name is given to blood flow from the heart to the lungs?
Pulmonary