The main role of the axial skeleton is to protect and support vital organs. Is this statement true or false?
Indicate whether the statement is true or false.
Ans: True
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When examining an endocrine cell from a new species of mammal under the microscope you find that it contains an abundance of rough endoplasmic reticulum, a large Golgi apparatus, and secretory granules. Which of the following is most likely to be true about these cells?
A. It secretes by endocytosis. B. Its hormone product is synthesized from cholesterol. C. It secretes a hormone with a hydrophobic structure. D. It secretes a peptide/protein hormone. E. It secretes its product by diffusion through the lipid bilayer of the plasma membrane.
The calvaria is made up of cranial bones and is part of the skull
Indicate whether this statement is true or false.
Of the cells lining the gastric pits of the stomach, which one does NOT secrete a substance into the lumen?
A) Mucous neck cells B) Parietal cells C) Chief cells D) Enteroendocrine cells
The hair cell of the semicircular canal hyperpolarize when the stereocilia are bent
A) in any direction. B) towards the kinocilium. C) towards the longest stereocilia. D) away from the kinocilium. E) Hair cells are not hyperpolarized by bending of the sterocilia.