Most genetic disorders are inherited through dominant genes
Indicate whether the statement is true or false
FALSE
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Which bone of the pectoral girdle or upper limb is S-shaped?
A. Scapula B. Radius C. Humerus D. Ulna E. Clavicle
Match each of the terms with its correct definition or description.
a. dendrite b. axon c. astrocyte d. microglia e. Schwann cell f. interneuron g. synaptic knob h. serotonin i. synaptic cleft j. enkephalins k. oligodendrocyte l. afferent neuron m. saltatory conduction n. efferent neurons o. cell body p. neurotransmitter q. nodes of Ranvier 1. _____ Part of the axon that releases neurotransmitters 2. _____ Highly branched part of the neuron that carries impulses toward the cell body 3. _____ Microbe eaters in the brain 4. _____ Connects sensory and motor neurons in a reflex arc 5. _____ Small space between the end of one axon and the next neuron 6. _____ Neurotransmitter that is a catecholamine 7. _____ Part of the neuron that conducts impulses away from the cell body 8. _____ Cells that produce myelin for cells in the peripheral nervous system 9. _____ Cells that function in the blood brain barrier 10. _____ Neurotransmitter that functions as a natural pain killer 11. _____ Main part of the neuron 12. _____ Type of nerve impulse that jumps from one node of Ranvier to the next 13. _____ Type of neuron that carries nerve impulses away from the central nervous system 14. _____ Glia cell that produces myelin for the central nervous system 15. _____ Type of neuron that carries nerve impulses toward the central nervous system 16. _____ Carries a nerve impulse across a synapse 17. _____ Indentations in between Schwann cells
The opening in the diaphragm that the esophagus passes through is (the)
A) hilum. B) hiatus. C) cardiac sphincter. D) crus. E) None of the answers are correct.
Which of the following muscles of facial expression is not innervated by the facial nerve?
A. Corrugator supercilii B. Orbicularis oculi C. Zygomaticus major D. Buccinator E. Levator palpebrae superioris