What is MALT? What role does it play in the body's defenses?
What will be an ideal response?
MALT is an acronym for mucosa-associated lymphoid tissue. It consists of aggregated lymphoid nodules deep to the mucosa (gut lining) of the digestive system. Examples include Peyer's patches in the small intestine and the vermiform appendix that is attached where the small intestine joins the large intestine. These lymphocytes are positioned to detect and neutralize pathogens to enter the body across the digestive mucosa. Beside these specific defenses, there is also mucus and other protective secretions.
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Which lymphatic structures absorb dietary lipids that cannot be absorbed by intestinal blood capillaries?
A. Abdominal lymph nodes B. Cisterna chyli C. Lacteals D. Spleen E. Thoracic duct
Define veins
What will be an ideal response?
Which sequence correctly traces the pathway of aqueous humor in the eye?a: Aqueous humor is secreted by epithelial ciliary cells.b: Aqueous humor is released into the posterior chamber.c: Aqueous humor is drained into the scleral venous sinus.d: Aqueous humor washes over the lens and then passes through the pupil into the anterior chamber.
A. a, c, b, d B. b, a, c, d C. d, a, c, b D. a, b, c, d E. a, b, d, c
The ________ canal includes the mouth, pharynx, esophagus, stomach, small intestine, large intestine, and anal canal.
Fill in the blank(s) with the appropriate word(s).