The digestive system processes food, extracts nutrients, and eliminates the residue.
Answer the following statement true (T) or false (F)
True
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Which of the following is a thin layer of smooth muscle just beneath the skin of the scrotum?
A. Raphe B. Cremaster C. Tunica vaginalis D. Dartos muscle E. Inguinal muscle
The stomach stores and mechanically breaks down food. In addition, the stomach also ________
A) initiates protein digestion B) is the first site where absorption takes place C) is the place where fats are digested D) is the first site where chemical digestion of starch takes place
Which of the following is not true of villi?
A. They are lined with simple columnar epithelium with microvilli. B. They are found in the small and large intestines. C. They are found in the mucosa. D. They contain blood vessels and lacteals. E. All of these are true of villi.
Which of the following is true of all the sensory pathways?
A) They all have third-order neurons. B) They all synapse in the thalamus. C) They all synapse in the cerebellum. D) They all enter through dorsal roots. E) Axons in each pathway decussate.