How does secretin help regulate pancreatic secretion?
What will be an ideal response?
Answer: Causes secretion of bicarbonate-rich pancreatic juice by duct cells
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Which type of epithelial tissue is found lining the heart, blood vessels and lymphatic vessels?
a) Simple squamous epithelium b) Simple cuboidal epithelium c) Stratified squamous epithelium d) Stratified cuboidal epithelium e) Simple columnar epithelium
Calcium ions are released from the sarcoplasmic reticulum into the cytosol
a) at the beginning of a contraction. b) in response to acetylcholine binding to Ca2+ release channels. c) by active transport using Ca2+ pumps in the SR membrane. d) after the contraction ends. e) All of these answers are correct.
The system of fluid-filled tubes and chambers of the inner ear is called (the)
A) cochlea. B) bony labyrinth. C) membranous labyrinth. D) endootic space. E) All of the answers are correct.
Which of the following is NOT true of the basement membrane?
A. The cells closest to the basement membrane are dividing cells. B. It is acellular. C. It serves to anchor the epithelial tissues to the underlying connective tissue. D. It is composed of collagen and secretions from the cells. E. It is connected to the apical surface of epithelial tissues.