Glands, such as the thyroid, that secrete their products directly into the blood rather than through ducts are classified as ________.
A) exocrine
B) endocrine
C) sebaceous
D) ceruminous
B) endocrine
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Briefly describe the difference between tonic and phasic receptors, and illustrate this difference by sketching graphs showing any type of stimulus (as a rectangular wave), the receptor potentials generated by each type of receptor, and the resulting action potentials in the neurons that respond to each type of receptor. You do not need to put numbers on your axes; rather you are to demonstrate
you understand the relative differences in the responses. What will be an ideal response?
During development, some bones arise from thick connective tissue membranes in a process known as ________ ossification, and other bones arise from a hyaline cartilage model in a process known as ________ ossification.
A. intramembranous; endochondral B. endochondral; intramembranous
Name the air-filled spaces lined by mucous membranes found within flat and irregular bones.
A. Short bone B. Medullary cavities C. Foramina D. Sinuses
Cell mediated immunity (aka cellular immune response) is a process whereby__________
Fill in the blank(s) with the appropriate word(s).