Platelets are roughly the same size as erythrocytes, and like erythrocytes, they eject their nucleus just before entering circulation.
Answer the following statement true (T) or false (F)
False
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Put these structures of the visual system in the order that they transmit visual information from the retina.
1. optic disk 2. visual cortex of the occipital lobe 3. optic chiasm 4. lateral geniculate body of the thalamus A) 1, 3, 2, 4 B) 3, 1, 2, 4 C) 1, 3, 4, 2 D) 1, 2, 3, 4 E) 3, 1, 4, 2
These structures enter lacteals during absorption:
a. amino acids. b. chylomicrons c. simple sugars d. bile salts. e. micelles
Which of the following statements is true regarding the gray matter of the cerebrum?
A. It is located only in the cerebral cortex. B. It is found in the cerebral cortex of the frontal, parietal, and occipital lobes but does not cover the entire temporal lobe. C. It is found both in the superficial cortex and in deeper basal nuclei. D. It consists mainly of nerve cell bodies and unmyelinated fibers and is found both in the superficial cortex and in the substantia nigra. E. It consists mainly of nerve cell bodies and myelinated fibers.
Many gyms feature weightlifting machines called "adductor machines" that are used to strengthen the thighs. If you were to work out on one of these, what would you be doing?
A) twisting both thighs to the left, then to the right B) lifting both thighs upward C) pushing both thighs outward, separating your knees as far as you can D) pulling both thighs inward toward a center point, bringing your knees together E) None of the answers is correct.