What percentage of interstitial fluid is moved to the lymph vessels without being recycled into the blood vessels?
10
What is the most common type of leukocyte?
Neutrophils
The loop that carries blood from the heart to the lungs and back is called the __________________ circuit.
Pulmonary
All of the following describe what type of cell?
Does not have a nucleus at maturity
Has a consistent lifespan of 100-120 days
Erythrocytes
Spleen
Thymus gland
All of the following describe what type of cell?
Are classified as granular or agranular
Concentrations can fluctuate widely
Are able to diffuse out of the blood vessel
Leukocytes
Chemical signals that cells use to communicate during an immune response are called
Cytokines
Which blood vessels have dead ends?
Lymph capillaries
The Y-shaped structures that cause agglutination of antigens are called
Antibodies
What is represented by number 3?

The germinal center
1) Blood vessel contracts, reducing blood loss
2) Platelets are chemically attracted to the wound
3) A fibrin mesh forms
Name two structures that are considered lymph nodules.
Tonsils
Peyer's patches
Name three functions of blood.
Prevent infection
Transport oxygen and hormones
Why do lymph nodes have fewer efferent vessels (outgoing) than afferent vessels (incoming)? Give two reasons.
To slow down the flow of lymph through the lymph node
To allow more time for lymphocytes to "clean" the lymph
Deoxygenated blood passes through which two heart valves?
Tricuspid valve
Pulmonary valve
The relaxation of the ventricles is known as
Diastole
Name the formed elements found in the blood?
Erythrocytes
Leukocytes
Thrombocytes
What is the formula for calculating cardiac output?
heart rate X stroke volume
What part of the body does the apex of the heart point to?
The left hip.
A substance that triggers an immune response is called a(n)
Antigen
Cilia and mucus are primarily responsible for eliminating pathogens in the respiratory tract. In the ____________________, enzymes are primarily responsible for eliminating pathogens.
Intestines
Which chambers of the heart would contain oxygenated blood?
Left atrium
Left ventricle
Rank the following components of blood from highest percentage to lowest: plasma, leukocytes, erythrocytes
Plasma
Erythrocytes
Leukocytes
What blood type is the universal donor?
O
A mother with blood type A+ (type A & Rh positive) is pregnant with an A- child. What is the concern?
There is no concern in this situation.