Chapter 16-17: Blood Vessels and the Lymphatic System Flashcards
What is the name given to the neurons that monitor carbon dioxide levels in the blood and are located in the carotid and aortic arteries
Chemoreceptors
A __1___ blood vessel with a ___2___ diameter would have the greatest resistant to blood flow.
- Long
2. Small
Pulmonary circulations goes from ___1___ to the ___2__.
- Right Ventricle
2. Left Atrium
Which blood vessels contain blood with the highest oxygen content
Pulmonary Veins
From which major blood vessel do all systemic blood vessels branch?
Aorta
Which circulatory route brings blood to tissues and back to the heart?
Systemic
Which circulatory path carries blood rich in substances absorbed from the gastrointestinal tract
Hepatic portal
___1___ ____2____ the heart have the lowest blood pressure
- Veins
2. Closest to
Vascular resistance is primarily due to which factor
Friction between blood walls
In fetal circulation which structure connects the fetal pulmonary trunk to the aorta allowing much blood to bypass the lungs
Ductus arteriosclerosis
When the left ventricle contracts what term is given to pressure in the arteries that is generated
Systolic
Stimulation of the _______ would cause 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 through the inferior and superior Vena Cava to the lungs, it moves through the ___1___ to the ___2___ and out through the ___3___.
- 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 tissue
Capillaries
Vessels that return interstitial fluid to the blood stream
Lymphatic vessels
Where is the cardiovascular center located
Medulla
Vessels with slowest blood flow
Capillaries
Vessels with thick muscle layer
Arteries
Vessels with very thin walls; only have a single layer of cells
Capillaries
Vessels with the smallest internal diameter
Capillaries
Vessels with very thin muscle layer
Veins
Vessels that exhibit a pulse
Arteries
Vessels that bring blood to almost every cell in the body
Capillaries
Known as “exchange vessels”
Capillaries
What are cells that migrate to the thymus and when mature are able to attack microbes directly
T-Cells
What name is given to blood flow from the heart to the lungs
Pulmonary
Blood pressure is measured by listening for a constricted __________ to “pop” open
Artery