The part of the hair that extends beyond the skin surface is called the
A. shaft.
B. root.
C. bulb.
D. papilla.
E. alopecia.
A
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Which of the following represents an exchange reaction?
What will be an ideal response?
Which of the following is true regarding an epidural block?
A) It is commonly used as a method of pain control during labor and delivery. B) It affects only the spinal nerves in the immediate area of the injection. C) It can provide sensory and motor anesthesia, depending on the anesthetic selected. D) It can provide mainly sensory anesthesia, depending on the anesthetic selected. E) all of the above
Identify the major branches of the inferior vena cava
A) lumbar, gonadal, hepatic, renal, adrenal, and phrenic veins B) bronchial, esophageal, azygos, hemi-azygos, intercostal, and mediastinal veins C) superior mesenteric, inferior mesenteric and celiac trunks D) left gastric, splenic, and common hepatic veins E) intercostal, esophageal, mesenteric, lumbar, and phrenic veins
A myofibril is the
A. structural and functional unit of the skeletal muscle fiber. B. cytoplasm of a muscle fiber. C. plasma membrane of a muscle fiber. D. protein strand composed of actin. E. contractile thread that extends the length of the muscle fiber.