Mucus lubricates tissue.
Answer the following statement true (T) or false (F)
True
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Fine hairs (like "velvet") that lack pigment and cover much of the body surface are called ________ hairs
A) veneer B) gossamer C) lanugo D) vellus E) terminal
Which of the following hormones directly stimulates growth of muscle tissue, leading to increased muscle mass?
A) epinephrine B) thyroid hormone C) testosterone D) parathyroid hormone E) calcitonin
Which part of a vertebra bears the most weight?
A. The pedicle B. The neural arch C. The lamina D. The transverse process E. The centrum
Why are the rings of cartilage surrounding the trachea C-shaped?
A) The C rings of cartilage keep the trachea patent (open). B) The C rings of cartilage allow the esophagus to expand during swallowing. C) The C rings of cartilage allow the esophagus to expand during swallowing, allow the trachea to change diameter during breathing, and keep the trachea patent (open). D) The C rings of cartilage allow the trachea to change diameter during breathing.