Answer:
This is achieved because the sodium channels have a refractory period following activation, during which they cannot open again. This ensures that the action potential is propagated in a specific direction along the axon.
Answer:
The cerebral cortex is the answer. A.
Explanation:
To keep record of who comes in and goes out, useful for crimes and for other reason.
As with all medical documentation, appointment entries should never be obliterated or erased. This information can be useful in solving crimes and possibly catching suspects. These records can be used as evidence against the suspect and can lead to justice to a certain person! hope that helps!
Answer:
The correct answer is option C. thymus.
Explanation:
Lymph nodules are small groups of lymphoid tissue present in the loose under the wet epithelial membranes such as the digestive system, urinary bladder, and respiratory system.
The thymus does not contain lymph nodules like other lymphatic organs such as spleen, tonsils and lymph node. However, small lymphocytes known as thymocytes are grouped together in the cortex and epithelial reticular cells can appear like nodules in the medulla.
Thus, the correct answer is option C. thymus.
