Leslie has a bad sore throat and the lymph nodes in her neck are swollen. This indicates __________.
A) the affected lymph nodes contain an increased number of lymphocytes.
B) lymph is not flowing through these lymph nodes.
C) the lymph gland has increased its secretion of thymosin.
D) the focus of the infection is the lymph nodes.
A) the affected lymph nodes contain an increased number of lymphocytes.
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Blood is composed of red blood cells, white blood cells, and platelets suspended in a fluid extracellular matrix called plasma.
Answer the following statement true (T) or false (F)
What are intercalated discs found in cardiac muscle cells?
A.) The portion of the sacrolemma that is found at the neuromuscular junction B.) The functional unit for muscle contraction, like sacromeres in skeletal muscles C.) A protein that binds oxygen in the cardiac muscle cell D.) Complex membrane junctions that include desmosomes and gap junctions
In the figure of a sagittal section of a fingernail shown below, where is the nail root?
a) A b) C c) E d) F e) G
The partial pressure gradient for oxygen (in the body) is much steeper than that for carbon dioxide. Explain how equal amounts of these two gases can be exchanged (in a given time interval) in the lungs and at the tissues
What will be an ideal response