What does the term plasticity refer to?
What does the term plasticity refer to?
The term plasticity refers to the ability of neurons to change their response to a signal based on what has happened before. Such a change in response can last for a short time (on the order of miliseconds to seconds) or for a long time (on the order of minutes, hours, days …..
What nerves must carry electrochemical messages from your ears to your brain?
Cards
| Front | Back |
|---|---|
| The term plasticity refers to the ____. | brain’s special capacity for modification and change |
| You are listening to a lecture. Then the bell rings in the hallway. In order to hear this stimulus, ______ neurons must carry electrochemical messages from your ears to your brain. | afferent |
Which of the following neurochemicals is thought to be responsible for social bonding?
Oxytocin
What is the body’s electrochemical communication circuitry?
The body’s electrochemical communication circuitry, made up of billions of neurons. The network of nerves that connects the brain and spinal cord to other parts of the body. It is divided into the somatic nervous system and the autonomic nervous system.
Which of the following are primary purposes of hormones?
The primary function of hormones is to alter cell activity by altering plasma membrane permeability or membrane potential, stimulating synthesis of enzymes or regulating molecules, activating or deactivating enzymes, inducing secretory activity, or stimulating mitosis.
What are cells in the nervous system are called?
Neurons. There are two broad classes of cells in the nervous system: neurons, which process information, and glia, which provide the neurons with mechanical and metabolic support.
What is the most important type of cells in the nervous system?
Neurons are the central building blocks of the nervous system, 100 billion strong at birth. Like all cells, neurons consist of several different parts, each serving a specialized function ([link]).
What does Neuroglia literally mean?
nerve glue
How do neurons heal?
Nerve Cells Do Not Renew Themselves After an injury, the skin makes a bunch of new cells and uses them to heal your wound. Yet, nerve cells in your brain, also called neurons, do not renew themselves. They do not divide at all.
How long do neurons live for?
These cells matured into neurons that looked like mouse neurons… but with rat lifespans. They survived for up to 36 months, around twice as long as they normally do in their native mouse brains. “Neurons do not have a fixed lifespan,” says Magrassi. “They may survive forever.
Can damaged neurons regenerate?
When peripheral nerves are injured, the damaged axons regenerate vigorously and can regrow over distances of many centimeters or more. Under favorable circumstances, these regenerated axons can also reestablish synaptic connections with their targets in the periphery.