Answer the following questions true (T) or false (F)
1. The partial pressure gradient of oxygen determines the direction of the movement of this respiratory gas.
2. The bulk of carbon dioxide is carried chemically combined with the amino acids of hemoglobin as carbaminohemoglobin in the RBCs.
3. The sensory, or afferent, division of the peripheral nervous system carries information from the brain and spinal cord to effector organs.
1. TRUE
2. FALSE
3. FALSE
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Which serous membrane covers the external surface of an organ?
A. The parietal layer B. The muscle layer C. The visceral layer D. The ventral layer E. The dorsal layer
An increased secretion of watery saliva will result when the
A. basal nuclei of the brainstem activate sympathetic pathways to salivary glands. B. basal nuclei of the cerebrum activate somatic pathways to salivary glands. C. salivary nuclei of the brainstem activate parasympathetic pathways to salivary glands. D. salivary nuclei of the cerebrum activate sympathetic pathways to salivary glands. E. glossopharyngeal nuclei of the pons activate somatic and sympathetic pathways to the salivary glands.
The two types of fluid connective tissues are blood and ________.
Fill in the blank(s) with the appropriate word(s).
Pinocytosis is the process in which the cell
A. internalizes ("drinks") a droplet of interstitial fluid. B. internalizes ("eats") a large solid particle. C. splits ("pinches") off a small part of itself to secrete into the extracellular space. D. pumps small solutes against their concentration gradient and out of the cell.