Q: What are Refractory Periods?
A: BASIC INFORMATION NEURON It is the longest cell inside the human body It is found in the brain…
Q: How does myelination differ between the CNS and the PNS?
A: Nervous system involves a series of networks of sensory receptors that provides information about…
Q: In the CNS, myelin is produced by glial cells called ___________ .
A: Myelin is an insulating layer or sheath that surrounds the nerves and it is produced by specialized…
Q: List two functions of the thalamus?
A: The division of the forebrain known as the diencephalon is situated between the telencephalon and…
Q: What are the purposes of the Absolute and Relative Refractory Periods?
A: Action potentials can be defined as the swift rise and succeeding fall in the membrane potential or…
Q: why do some students like to study in a busy coffee house? How is this related to the reticular…
A: Student may think that the noise of the people can you distract you and leads their study in…
Q: What is myelin? How does myelination differ in the CNS and PNS
A: The sensory system is the piece of a creature's body that organizes its conduct and communicates…
Q: glutamate release from rods stimulates the retinal ganglion cells B. glutamate release from rods…
A: Retinal Ganglion cells A retinal ganglion cell (RGC) is a kind of neuron. In the eye, it is situated…
Q: What two types of macromolecules are the main components of myelin? a. carbohydrates and lipids b.…
A: The nervous system is made up of two main types of cells - neurons and the neuroglia. Neurons are…
Q: Certain postganglionic neurons cause the pupil of the eye to constrict by releasing what chemical…
A: The eyes are the sensory organs that enable vision. The light enters the eyes and activates the…
Q: what is relative refractory?
A: The refractory period refers to the specific time interval when the excitable cells (like neurons)…
Q: How do Schwann cells and oligodendrocytes differ with respect to the number of axons they myelinate?
A: There are two types of myelinating cells present in our nervous system: Schwann cells also known as…
Q: What is the significance of some ganglionic axons crossing to the opposite side of the brain?
A: The brain is the main part of the body that controls every action in our body. It is located in the…
Q: What is the difference of depolarization and hyperpolarization? Why do cold receptors depolarize…
A: both are the phases in the generation and conduction of an action potential.
Q: he neuron labelled "D" in the figure is what class of functional neuron?: 3rd-order? lower motor…
A: The neuron is the structural and functional unit of the nervous system. Neuron helps in the…
Q: What is relative refractory period?
A: Refractory period – duration of time during which the cell is unable to respond to a stimulus. It…
Q: When do EPSPs and IPSPs occur?
A: EPSP :- Cause Membrane Potential to move closer to threshold. Caused by an opening of Cation…
Q: Why are cholinergic and adrenergic neurons so named?
A: Neurons are considered to be the basic unit of the nervous system. They detect environmental changes…
Q: What is the functional advantage of myelination?
A: The neuron or nerve cell is the fundamental unit of the nervous system. This is divided into three…
Q: What is somatosensory cortex?
A: Somatosensory cortex is a part of the brain that receives and processes sensory information.
Q: The region where an axon connects to its own cell body is called the A. soma B. hillock region C.…
A: ANSWER. B) Hillock region Explain;- The axon hillock is a specific piece of the cell body (or…
Q: Gray matter consists of... cell bodies, dendrites, and unmyelinated axons myelinated axons…
A: The central nervous system is composed of the brain and spinal cord, and the peripheral nervous…
Q: In the somatosensory pathway, which of the following neurons carries information from the PNS to the…
A: The neurons are the basic fundamental units of the nervous system and also known as nerve cells.…
Q: Match each glial cell with its function + Schwann cells A. Help circulate cerebrospinal fluid *…
A: 1. B.Form myelin in the PNS 2. A Help circulate cerebrospinal fluidi
Q: How do oligodendrocytes myelinate axons and how does this differ from myelination by Schwann cells
A: Myelination Myelin is a lipid-rich protective insulating layer present around the nerve cell axons.…
Q: How does conduction along a myelinated fiber differ from conduction along an un-myelinated fiber?
A: Myelin is a substance which is rich in lipids and surrounds the nerve cell axons in order to…
Q: In a syndrome called word blindness, a person loses the ability to read (even single letters),…
A: Our brain has centres for all of our activities like muscle movement, also they are responsible for…
Q: What is the role of glial cells in the brain and other parts of the nervous system?
A: Introduction :- Glial cells, also known as neuroglia, are cells that surround and support the…
Q: Explain the cocept of Myelin Sheath ?
A: All organisms are made of billion s of cells. All cells are like the bricks that organise to make up…
Q: Identify the location of the cell bodies of third order neurons of the Doral column medial lemniscus…
A: INTRODUCTION Third order neurone These are the neurons that carries signals from thalamus to primary…
Q: please use arrows to idetify: axon fascicle endoneurium perineurium epineurium Schwann cell (myelin…
A: Nerve fibers together form bundles called nerves in the nervous tissue. A nerve has axons enclosed…
Q: What is meant by theperipheral nervous system(PNS)?
A: The nervous system can be defined as an important part of an animal's body that is responsible for…
Q: Myelinated axons are known to speed up the nerve impulse transmission. How does this happen
A:
Q: What do you mean by association neurons?
A: Neurons are the most important cells of the body. They are also called nerve cells. Nerve cells are…
Q: (From attached picture) What type of EEG rhythm is shown at time points A and C? What type of EEG…
A: The electroencephalogram (EEG) may be a recording of the electrical activity of the brain from the…
Q: How does myelin aid propagation of an action potential along an axon? How do the nodes of Ranvier…
A: Action potential refers to a change in the membrane potential of the nerve cells by opening and…
Q: You touch a hot stove and withdraw your hand before you perceive the pain. Identify the neural…
A: Introduction NEURAL PATHWAY:- A series of connected nerves along which electrical impulses travel in…
Q: certain inhaled anesthetic agents are thought to open chlorine ion channels in the membranes of…
A: At the synapse, the firing of an action potential in one neuron, i.e., the presynaptic neuron,…
Q: What is the name of theterminal portion of the axon?
A: Neurons are specialized cells that transmit and receive electrical signals in the body. Each neuron…
Q: epsp’s and ipsp’s, where are they occurring
A: A transient depolarization of the postsynaptic membrane generated by the passage of positively…
Q: What is the difference between the absolute refractory period versus the relative refractory period?
A: Refractory period – duration of time during which the cell is unable to respond to a stimulus. It…
Why is Myelin made up of Lipids and protein macromolecules?
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- Many neurons have only a single axon, but many terminals at the end of the axon. How does this end structure of the axon support its function?What is the function of myelin sheaths? Where are they found?What two types of macromolecules are the main components of myelin? a. carbohydrates and lipids b. proteins and nucleic acids c. lipids and proteins d. carbohydrates and nucleic acids
- Areas of myelinated axons create the appearance of _______ matter, while neuron cell bodies and unmyelinated axons create the appearance of ______ matter.Why does an action potential move in an all-or-nothing fashion down the length of an axon without stopping?Unmyelinated axons conduct action potentials without decrement, but when myelinated axons lose myelin in demyelinating diseases such as multiple sclerosis, conduction of action potentials is blocked. Why?