0
Add your answer:
Earn +20 pts
What is the smallest functional unit of the nervous system?
The neuron is the smallest functional unit of the nervous system. It is responsible for transmitting information through electrical and chemical signals. Neurons make up the basic building blocks of the nervous system and are essential for communication within the brain and between the brain and the rest of the body.
How the brain play a part in nervous system?
The brain is the central hub of the nervous system, responsible for processing and interpreting sensory information, making decisions, and sending out commands to the rest of the body through the spinal cord. It controls various functions such as movement, thinking, and emotions by sending and receiving electrical signals between neurons. Overall, the brain plays a crucial role in coordinating all activities of the nervous system.
Do students do better in school when they have more sleep than the people who have less sleep?
Yes, studies have shown that students who get more sleep tend to perform better in school compared to those who get less sleep. Adequate sleep is important for cognitive function, memory retention, and overall academic performance. A consistent sleep schedule that allows for enough rest can positively impact learning abilities and concentration levels.
Explanation for being absent in school?
I was feeling unwell and needed to rest at home to recover. I will provide any necessary documentation from my healthcare provider upon returning to school. Thank you for your understanding.
Why did sigmound freud leave his country?
Sigmund Freud left Vienna in 1938 to escape Nazi persecution as he was Jewish. He settled in London, where he spent the rest of his life and continued his work in psychoanalysis.
It is the membrane potential of a neuron at rest?
Yes,the membrane potential of a neuron is at rest because it is the difference in electrical charge between inside and outside a resting neuron.
A charge difference between the interior of the neuron axon and the exterior exists when the neuron is?
When the neuron is at rest, a charge difference known as the resting membrane potential exists between the interior and exterior of the axon. This potential is maintained by the unequal distribution of ions across the cell membrane, with more negative ions inside the cell compared to the outside.
What is a nerve membrane at rest called?
At rest, the nerve membrane is referred to as polarized, meaning there is a difference in electrical charge between the inside and outside of the cell. This difference is maintained by the sodium-potassium pump, which actively transports ions across the cell membrane.
Why Sodium and potassium ion can only cross in axon membrane through protein channel explain why?
Sodium and potassium ions are charged particles and are unable to cross the axon membrane through simple diffusion. Protein channels, known as ion channels, are specialized proteins that form pores in the membrane, allowing specific ions like sodium and potassium to pass through by facilitated diffusion. These channels are selective, meaning they only allow specific ions to pass through based on size, charge, and shape.
What is a charge in motion?
A charge in motion is usually called an electric current, but could also be called dynamic electricity (analogous to a charge at rest being called static electricity).
How electrical signal exist related with membrane potential and and action potential?
Electrical signals in neurons are related to changes in membrane potential. The resting membrane potential is caused by unequal distribution of ions across the membrane. When stimulated, the membrane potential can change, leading to depolarization or hyperpolarization. Action potentials occur when a threshold level of depolarization is reached, resulting in a rapid and coordinated electrical signal propagation along the neuron.
Is static electricity a charge?
Static charge mean "Charges at rest". And at rest, any charge can have its electric field, but its meg.field is always zero at rest.
What are electric charge?
the static electric charges refer to the charges which are at rest, in other words stationary positions.
Functions of the nuclear membrane?
Membrane or barrier that separates the nucleus from the rest of the cell.
Explain how a neuron enter a state of depolarization?
When a neuron receives a stimulus, sodium channels on its membrane open, allowing sodium ions to flow into the cell. This influx of positive ions results in a change in the membrane potential towards zero, a state known as depolarization. This depolarization triggers the neuron to generate an action potential and propagate electrical signals along its length.
Membrane that separates the nucleus from the rest of the cell?
The anwser is nuclear membrane! Is that not self explanitory?
What membrane covers the rest of a bone?
The periosteum.
