Which of the following is not a lymphatic organ?
A. Adenoid
B. Spleen
C. Lymph node
D. Lymphatic nodule
E. Red bone marrow
D. Lymphatic nodule
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What part of the tooth bears the force and resists the friction of chewing?
A) crown B) enamel C) cementum D) pulp
Structures in the heart that carry electrical signals from the SA node to the AV node are called
A) the chordae tendineae. B) bundle branches. C) Purkinje fibers. D) internodal pathways. E) None of the answers are correct.
Which is not correct regarding the innervation of the kidney?
A. Sympathetic stimulation causes vasoconstriction of the renal blood vessels. B. Parasympathetic stimulation decreases the rate of filtrate formation. C. The kidney is served by the renal plexus. D. Sympathetic innervation is from segments T10-T12 of the spinal cord. E. Parasympathetic innervation is from the vagus nerve.
Epithelial tissue
A. Absorbs molecules. B. Secretes mucus. C. Prevents drying. D. All apply.