Red blood cell production in the ____________________ is stimulated by the hormone ____________________, which is secreted from the kidney in response to ____________________
Fill in the blank(s) with correct word
bone marrow, erythropoietin, reduced O2 delivery
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Match each of the terms with its definition or description.
a. pia mater b. dura mater c. cranial nerves d. spinal nerves e. arachnoid mater f. dermatome g. parasympathetic nervous system h. sympathetic nervous system i. acetylcholine j. norepinephrine 1. _____ Skin surface that is supplied by a single spinal nerve 2. _____ Outermost and toughest of the meninges 3. _____ 31 pairs of these make up part of the peripheral nervous system 4. _____ “Cobweb”–like part of the meninges 5. _____ Regulates the “fight or flight” response 6. _____ Thin innermost layer of the meninges 7. _____ 12 pairs of these make up part of the peripheral nervous system 8. _____ Neurotransmitter that is released from the postganglionic axons of the parasympathetic nervous system 9. _____ Sometimes called the craniosacral nervous system 10. _____ Neurotransmitter that is released from the postganglionic axon or the sympathetic nervous system
Which glial cell is found wrapped around nerve fibers in the PNS?
A. Satellite cells B. Myelin sheath gaps C. Ependymal cells D. Schwann cells E. Oligodendrocytes
Stranger in the Mirror (NOVA):
What will be an ideal response?
The refractory period of cardiac muscle
a. lasts almost as long as the contraction period. b. is much longer than the refractory period in skeletal muscle. c. allows tetanic contraction of the heart to occur to ensure smooth, coordinated ejection of blood from the ventricles. d. both (a) and (b) above. e. all of these answers.