The spinal cord is divided into 4 segments; they are the
Ans: Cervical, Thoracic, Lumbar, Sacral
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An autorhythmic heart cell is one in which
A. action potentials fire spontaneoulsy. B. action potentials are stimulated by internal stores of acetylcholine. C. action potentials always occur at exactly the same frequency. D. all filaments contract and relax with a high degree of synchrony. E. action potentials are initiated by the autonomic nervous system.
Matching
A) Cystic fibrosis B) Achondroplasia C) Albinism D) Tay-Sachs disease E) Huntington's disease 5) Lack of skin pigmentation. 6) Rare type of dwarfism resulting from an impaired ability of the fetus to lengthen long bones by endochondrial ossification. 7) An unremitting, fatal nervous system disease involving degeneration of the basal nuclei. 8) A condition of drier excessively sticky mucus production. 9) A disorder of brain lipid metabolism.
Marianne has small, bruise-like spots on her skin and a low platelet count. These
blemishes are most likely A) blood blisters. B) pinpricks. C) petechiae. D) hematomas.
Osteons are also called ________ systems.
Fill in the blank(s) with the appropriate word(s).