How does the structure of a lymph node allow lymphocytes and macrophages to perform their protective function?
What will be an ideal response
Macrophages and lymphocytes are located in lymph nodes. Macrophages ingest microorganisms and cellular debris. Lymphocytes monitor the lymphatic stream for the presence of antigens and mount an immune response. Because there are fewer efferent vessels draining the node than afferent vessels that feed it, the flow of lymph through the node stagnates somewhat, allowing time for the lymphocytes and macrophages to work.
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Hormones
A. primarily function through electric signaling. B. generate action potentials to send signals through the body. C. catalyze reactions by physically bringing two reactants closer together. D. have functions in growth, reproduction, and development.
The ________ and the middle nasal conchae are thin scrolls of ethmoid bone that project into the nasal cavity.
Fill in the blank(s) with the appropriate word(s).
Damage to which spinal cord component will affect only motor activity?
a. spinal nerve b. dorsal root c. ventral root d. ascending tracts e. dorsal root ganglion
the tensor fasciae latae has several actions. select two of them from the list below.
a) abducts femur b) medially rotates tibia c) extends knee d) laterally rotates femur