The term "positive feedback" means that the outcome of the system is a good one
Indicate whether this statement is true or false.
FALSE
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Why is blockage of a coronary artery such a serious threat to cardiac muscle?
A. Cardiocytes have weak sarcolemmas that easily rupture. B. Cardiocytes have abundant mitochondria and rely on a constant supply of oxygen. C. Cardiocytes rely on a constant supply of calcium. D. The myosin of cardiocytes is unique and requires abundant nutrients and oxygen. E. Cardiocytes are fast-twitch fibers.
List 5 signs of Tyzzer's disease in rabbits
What will be an ideal response?
Migraine results from
A. a neurotransmitter deficiency. B. release of calcitonin gene-related peptide from the trigeminal nerves at the base of the brain, in response to a spreading wave of excitation followed by lack of response from the cortex. C. release of an abnormal form of beta endorphin from the trigeminal nerves at the base of the brain, in response to cortical stimulation. D. not eating enough chocolate, which causes a spreading effect in the cortex.
Which of the following is an INCORRECT pairing of a cranial nerve and the portion of the brain to which it is directly connected?
A. V (trigeminal) and pons B. II (optic) and thalamus C. XII (hypoglossal) and medulla D. III (oculomotor) and midbrain E. VII (facial) and cerebellum