Answer the following statements true (T) or false (F)
1. The visual association area is in the occipital lobe of the cerebrum.
2. Your spinal cord begins at the base of the skull and ends at the second sacral vertebrae.
3. The spinal cord functions as the primary reflex center for the body.
4. The pia mater is the tough outermost layer of meninges.
5. The cerebrospinal fluid (CSF) is filtered out of the blood in the choroid plexus.
1. TRUE
2. FALSE
3. TRUE
4. FALSE
5. TRUE
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Which of the following changes does not occur during exercise compared to rest?
A) Cardiac output is higher. B) Heart blood flow is higher. C) Skin blood flow is lower. D) Abdominal viscera blood flow is lower. E) Kidney blood flow is lower.
The LD50/ED50 is the mathematical expression of what value?
a. the lethal dose b. the effective dose c. the margin of safety d. the mortality dose
Which statement is correct?
A) For distant vision, the ciliary muscle is relaxed and the lens is rounded. B) For close vision, the ciliary muscle is relaxed and the lens is flattened. C) For distant vision, the ciliary muscle is contracted and the lens is flattened. D) The closer the light source, the shorter the focal distance. E) For close vision, the ciliary muscle is contracted and the lens is rounded.
The two purine nitrogen bases are adenine and guanine
a. True b. False Indicate whether the statement is true or false