As you examine the rest of the skeleton, you notice an S-shaped bone that appears to have been fractured prior to death. This bone likely was fractured due to a fall on the outstretched hand. What bone is it?
a. clavicle
b. metacarpal
c. rib
d. phalanx
a. clavicle
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Stimulation of a neuron that terminates in the superior region of the left postcentral gyrus would produce
A) a sensation in the right leg. B) a sensation in the lips. C) a muscle twitch in the right leg. D) a muscle twitch in the lips. E) both sensations and muscle twitches in the right leg.
A patient is experiencing a high fever, stiff neck, drowsiness, and intense headaches. A spinal tap showed bacteria and white blood cells in the cerebrospinal fluid (CSF). This individual most likely has what condition?
A. Parkinson disease B. Alzheimer disease C. Meningitis D. Hydrocephalus E. A stroke
Which of the following indicates that the immune system has achieved versatility?
A) Millions of NK cells are produced to ensure efficient immune surveillance. B) Lymphocytes, which are sensitive to an antigen, undergo repeated cell divisions. C) Production of many normal B cells and T cells, which will attack "self" antigens, occurs. D) Lymphocyte cell divisions produce two cell types: one group, which will attack specific antigens, and another group, which will remain inactive until exposed to the same antigen later. E) Millions of different lymphocyte populations are produced, each with different antigen receptors.
An orbital injury can cause damage to sight.
Answer the following statement true (T) or false (F)