The brain requires blood flow to function properly, and cutting off blood flow to some of the brain's most important functions can be extremely harmful. Paralysis, sensory deficits, or even a stroke could result from a blockage of blood flow in the anterior cerebral arteries.
<h3>What causes a stroke?</h3>
A blocked artery (ischemic stroke) or a blood vessel leak or burst are the two basic causes of stroke (hemorrhagic stroke). Transient ischemic attacks (TIAs), which are brief interruptions in blood supply to the brain that don't persist long, can occur in some persons.
<h3>What happens when you stroke?</h3>
Depending on where in the brain the stroke occurs and how many brain cells are lost, the effects of a stroke might vary. Paralysis, trouble swallowing or communicating, memory loss, discomfort, emotional changes, and behavioral problems can all be brought on by a stroke.
<h3>What are the 4 signs of stroke?</h3>
- Face, arm, or leg weakness that appears out of nowhere (especially on one side of the body).
- abrupt difficulty speaking or understanding speech.
- sudden problem with eyes' eyesight.
- sudden dizziness or difficulties walking,
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Answer:
Tibia bone runs parallel to fibula.
A chemo electrical signal that can travel along cell membranes in a wave-like pattern is called a nerve impulse.
What is a nerve impulse?
- A nerve impulse is an action potential generated across the plasma membrane of the neurons of our nervous system.
- The electrical potential difference generated across the neurilemma i,e., the plasma membrane of the neurons (due to the reception of the external stimulus), is responsible for the generation of the nerve impulse.
- Neurotransmitters, chemicals like acetylcholine, dopamine, etc., are also involved in transmitting nerve impulses across neurons.
Hence, the chemoelectrical signal that can travel along cell membranes in a wave-like pattern is a nerve impulse.
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Answer:
a. In chlorophyll photosystems, the photons excite electrons that are transferred from donor to acceptor molecules in a process that involves oxidation-reduction reactions
b. As negative controls could be produced targeted mutations in genes encoding for enzymes that are not involved in the growth and in the photosynthetic activity
c. The plants that have many classes of photosynthetic pigments absorb light in different ranges of the visible spectrum, thereby it may confer an adaptive advantage to these plants
Answer:
Force of repulsion.
By decreasing distance and increasing charge on both objects.
Explanation:
Force of repulsion is present between two negatively charged objects due to their same charge. if both charges are opposite to one another so it exerts force of attraction on one another. If we decrease the distance between two negatively charged objects so they exerts more force of repulsion on one another or by increasing power of charge on both objects also increases force on one another.
