This tunic of the GI tract is important for secretion of enzymes and absorption of nutrients
A) serosa B) submucosa C) muscularis externa D) mucosa
Answer: D
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On axial CT images, which muscle of the neck is seen most posteriorly?
A. Sternocleidomastoid B. Erector spinae C. Posterior scalene D. Longus capitis/longus colli
The centrioles are found in a zone of cytoplasm close to the nucleus called the ________.
A. vacuole B. cytogel C. proteasome D. cytosol E. centrosome
What type of cells form the third filtration barrier?
A. Ciliated cuboidal epithelial cells B. Podocytes C. Capillary simple squamous epithelial cells D. Glomerulocytes
Which of the following is NOT a method used by the respiratory system to help the immune system fight against pathogens?
A. Mucus helps trap pathogens. B. Tonsils help activate T cells. C. Cilia sweep impurities out of the lungs. D. Dust cell macrophages remove pathogens from the nasal cavity.