Which of the following is part of the inner layer of the wall of the eye? A) lateral rectus muscle
B) iris
C) retina
D) sclera
E) conjunctiva
C) retina
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Cancer cells and virus-infected body cells can be killed before activation of adaptive immunity by ________.
A) natural killer cells B) T lymphocytes C) B lymphocytes D) pinocytosis
Which statement is incorrect about parasympathetic stimulation of the digestive system?
a. In general, it is excitatory for digestive organs. b. It comes primarily through the vagus nerve. c. It is part of the extrinsic nerve supply to the digestive tract. d. It causes salivary glands to secrete saliva rich in mucus. e. It increases salivary, gastric, pancreatic, and biliary secretion.
Ventilating the gills by taking water in through the gill openings, as well as using the gill openings for water ejection, is not a very efficient way of doing things. Why, then, do adult lampreys ventilate their gills this way?
What will be an ideal response?
All of the following structures are located within the rectus sheath EXCEPT
(A) pyramidalis (B) rectus abdominis (C) inferior epigastric arteries and veins (D) deep inguinal ring (E) ventral primary rami of T7-T12 nerves