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:
Left Cerebrovascular Incident (Left Ischemic Stroke) with right hemiparesis
Explanation:
Blood pressure increases when a person is involved in physical activity. A history of high blood pressure can result in weakening of the arterial walls overtime, this can lead to blockage of the arteries which means that part of the brain does not receive adequate blood and oxygen supply resulting in in cells of that part of the brain dying, hence ischemic stroke.
As a result, parts of the body supplied by the affected part of the brain will be impaired, eg. weakness, decreased sensation, etc.
Answer:
The dermis is the second layer of the skin that protects the human body from stress and strain. It is found between the epidermis and the hypodermis or the subcutaneous tissues.
The dermis layer is composed of two layers: papillary dermis and reticular dermis.
The reticular dermis is the thick layer of the dermis, composed of the dense irregular connective tissues. It contains of elastic protein fibers that makes the skin stretchable and elastic (able to rebound).
<u>Therefore, the reticular dermis makes the skin stretchable and elastic (able to rebound).</u>
Answer:
Fetuses receiving antibodies from their mothers across the placenta before birth
Explanation:
Passive immunity come from the introduction of antibodies from another person (ie a mother to her fetus)
