Explain why a severe heart attack (myocardial infarction) has left Mr. Rodriguez's heart muscle weakened
What will be an ideal response?
Cardiac muscle cells cannot undergo mitosis due to the large size and complicated cellular architecture. Cardiac muscle cells lack satellite cells that would have allowed for some regeneration. Thus, fibrosis is the only way cardiac muscle cells can be repaired. During fibrosis, fibroblasts divide by mitosis to produce collagen fibers resulting in the formation of scar tissue.
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The blood contains ____________________ and other fat substances called ____________________.?
Fill in the blank(s) with correct word
The pulsing of arteries that are adjacent to lymphatic vessels provides a pressure on the vessels that helps them propel the lymph
TRUE
A pre-synaptic axon contacts the dendrite of a post-synaptic neuron. How would you describe the synaptic relationship?
A. It is an electrical synapse. B. It is an excitatory synapse. C. It is an axosomatic synapse. D. It is an axoaxonic synapse. E. It is an axodendritic synapse.
The site of information integration in the nervous system is the
A) electrical synapse. B) chemical synapse. C) dendritic membrane. D) axon terminal. E) trigger zone.