It is the thickest chamber of the heart?
What is the Left ventricle
It is 45 for whole blood
What is a normal hematocrit value
The lower respiratory tract starts here
What is at the trachea (or below the vocal cords of the larynx)
The name of the processes that transmit impulses to the soma of a neuron
What are dendrites
A flap of elastic cartilage that blocks the entrance to the trachea
What is the epiglottis
This valve separates the R. atrium and R. ventricle
What is the tricuspid valve
It is a protein that carries oxygen in the blood
What is hemoglobin
Lymphatic tissues in the upper respiratory tract have this name
What are tonsils
It is the fat rich material that insulates axons
What is myelin
Type of tissue making up most of the alveoli walls
what is Simple squamous epithelium
They return blood to the L. atrium
What are the pulmonary veins
It is a granulocyte that fights bacterial infections
What is a neutrophil
The trachea branches into the primary bronchii at this point
What is the carina
They form the blood-brain barrier and make up half the mass of the brain
What are astrocytes
When these close, they make the "dupp" of the "lupp-dupp" heart sounds
What are semilunar valves
It allows blood to go directly from the pulmonary trunk to the aorta in a fetus
What is the ductus arteriosus
it is a protein that forms blood clots
What is fibrin
Surfactant reduces this within alveoli
What is surface tension of water
It is the lobe responsible for controlling voluntary skeletal muscle movements
What is the frontal lobe
What is a synapse
It continues the electrical impulse in the heart immediately after the SA node and atrial walls
What is the AV node
Blood type B positive has these antibodies in blood plasma
What is anti-A antibodies only
The muscles that move the thoracic cage during inspiration
What are the diaphragm and intercostals
The vasomotor and respiratory centres are located in this structure
What is the medulla (oblongata)
Lymphocytes and monocytes are this type of WBC
What are agranulocytes