During thyroid hormone secretion,
a. the follicular cells phagocytize a piece of colloid.
b. T4 and T3 are split off of thyroglobulin by lysosomal enzymes within the follicular cell and subsequently diffuse out of the cell into the blood.
c. T4 and T3 are secreted by exocytosis of the colloid that has been internalized by the follicular cells.
d. both (a) and (b) above.
e. both (a) and (c) above.
D
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Arrange the following terms from the smallest to the largest: (1) cell, (2) organelle, (3) atom, (4) organ, (5) tissue.
A. 3, 1, 5, 4, 2 B. 1, 2, 3, 4, 5 C. 5, 4, 3, 2, 1 D. 3, 2, 1, 5, 4
Which of the following is not a function of the skeletal system?
A) production of blood cells (hematopoiesis) B) communication C) storage of minerals D) support
The ____________________ nervous system stimulates only digestive organs, and this system is a subdivision of the ____________________ division of the PNS
Fill in the blank(s) with correct word
When the level of blood flow is not ideally matched with the amount of airflow in a localized area of lung tissue,
a. autoregulatory mechanisms are invoked b. the autonomic nervous system couples the events more ideally c. and if airflow is low and blood flow too high, arteriolar vasoconstriction occurs d. both a and b occur e. both a and c occur