_________________________ are tiny, oval-shaped structures ranging in size from a pinhead to an almond.?
Fill in the blank(s) with correct word
Lymph nodes
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Researchers in a lab are working with a form of stem cells that can divide and give rise to any cell type, allowing them to research development. This cell type is known as
A. totipotent. B. a differentiated cell. C. pluripotent. D. multipotent.
The anterior pituitary is involved in the regulation of reproduction
Indicate whether the statement is true or false
Which of the following characteristics associated with twitch summation allows for maximal contraction force?
a. high levels of NE in the synapse b. lower frequency of action potentials in the sarcolemma c. increased movement of calcium into the sarcoplasmic reticulum d. rapid rise of calcium in the cytosol e. longer latent periods of contractions
What substance can act as a retrograde messenger to increase LPT by increasing the release of glutamate from presynaptic terminals?
A. Mg2+ B. ACh C. NO D. Ca2+