When the superior most points of the iliac crests are palpated, drawing a horizontal line through them bisects the spinous process of the ________ vertebra.
A. L3
B. T12
C. L1
D. L5
E. L4
Answer: E
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Answer the following statements true (T) or false (F)
1. Skeletal muscle cells contain more than one nucleus. 2. All muscles specialize in contraction or shortening. 3. Bursae and tendon sheaths have the same function. 4. The pull of gravity assists the muscles in maintaining body posture. 5. When stimulated, the entire muscle follows the all-or-none law.
Because more than 99% of the cells are erythrocytes, the hematocrit essentially represents the percentage of erythrocytes in the total blood volume
a. True b. False Indicate whether the statement is true or false
Which of the following organs is least likely to be damaged in an automobile accident?
a) stomach b) intestines c) urinary bladder d) liver
Which of the following statements concerning vision is false?
A. Rods cannot detect color. B. The visual pigment of cones is iodopsin. C. Most of the optic tract axons terminate in the medial geniculate nucleus of the thalamus. D. Association neurons in the inner retinal layers modify signals of rods and cones. E. Most of the optic tract axons terminate in the lateral geniculate nucleus of the thalamus.