Write down the role of axons?

1 Answer

Answer :

Axons are organelles that carry information away from the cell body. Axons may be as small as several microns or as long as several meters in giraffes and whales. The axons main job is to send a signal to the dendrites of another neuron, but some say that they may also recieve signals in certain situations. Each neuron has only one axon, but the axon may have branches with what are called terminal buttons at its end.

Related questions

Description : Write down the role of Hypothalamus?

Last Answer : The seat of the autonomic nervous system. Damage to the hypothalamus is quickly fatal as the normal homeostasis of body temperature, blood chemistry, etc. goes out of control. The source of 8 hormones, two of which pass into the posterior lobe of the pituitary gland.

Description : Write down the role of Exocrine glands?

Last Answer : Exocrine glands release their secretions into ducts which in turn release them onto the surface of organs. Examples of exocrine glands are sweat glands, salivary glands, mammary glands, etc. ... digestive system while it also contains the Islets of Langerhans which secrete insulin into the blood.

Description : Write down the role of an amygdale?

Last Answer : The amygdala appears to be a center of emotions. It sends signals to the hypothalamus and medulla which can activate the flight or fight response of the autonomic nervous system.

Description : Write down the role of dendrites?

Last Answer : Dendrites are organelles that sense the neurotransmitter secreted by the axon of another neuron. Most neurons have more than one dendrite. Dendrites and axons do not directly touch each other; there is a gap, called a synapse.

Description : What is the role of pons?

Last Answer : The second part is the pons, which means bridge in Latin. The pons sits in front of the medulla, and wraps around it to the back. It is primarily the pathways connecting the two halves of the next part, which is called the cerebellum.

Description : What is the role of nervous system in human body?

Last Answer : The nervous system is made up of a network of complex fibers known as nerves that thread throughout the human body like house hold wiring. The nerves conduct electrical signals back and ... The autonomic nervous system, which controls automatic functions such as breathing, heart beat and digestion.

Description : What is the role of medulla?

Last Answer : The first is the medulla, which is actually an extension of the spinal cord into the skull. Besides containing tracts up and down to and from the higher portions of the brain, the medulla ... of nuclei called the reticular formation. It is the regulatory system for sleep, waking, and alertness

Description : What is the role of neurotransmitter?

Last Answer : The terminal button at the end of the axon holds the synaptic vesicles. When the signal reaches the end of the axon the vesicles discharge a chemical called a neuro transmitter. Neurotransmitters are chemicals ... than that cell's threshold then the cell fires, sending the message to the next cell.

Description : What is the Bilaminar Zone:** A. Formed of, or having, two laminae, or thin plates. Which is the distal attachment of superior hard lateral plate B. A vascular, innervated tissue that plays an important role in allowing the condyle to move foreward

Last Answer : B. A vascular, innervated tissue that plays an important role in allowing the condyle to move foreward

Description : What is the MOST important role of saliva in preventing dental caries: A. Buffering action

Last Answer : A. Buffering action

Description : Platelets play an important role in haemostasis; which of the following describes this role? A. They convert fibrinogen to fibrin B. They agglutinate and plug small, ruptured ... thrombosis D. They supply fibrin stabilizing factors E. They supply proconvertin for thromboplastin activation

Last Answer : B. They agglutinate and plug small, ruptured vessels

Description : What is the difference between Myelinated and Non-myelinated axons? -Biology

Last Answer : answer:

Description : What is the difference between Dendrites and Axons? -Biology

Last Answer : answer:

Last Answer : 1 neuron has 1 action.

Description : What Axons from ganglion cells make up?

Last Answer : Feel Free to Answer

Description : The white matter present in the brain and spinal cord consists of (a) neuroglia (b) myline sheath (c) terminal arborizations of axons (d) cellular sheath of Schwann

Last Answer : Ans:(b)

Description : What are the fatty covering of some axons called?

Last Answer : Myelin sheath

Description : The axons of the Purkinje cells in the cerebellar cortex: a. terminate in excitatory synapses b. terminate in cerebellar nuclei c. terminate in the spinal cord. d. form the main efferent pathway from the cerebellar cortex

Last Answer : terminate in cerebellar nuclei

Description : In the neurones: a. the axons convey impulse away from the cell body b. neurotransmitters are synthesized in the cell bodies and then transported to the axons c. the condition ... with fibre diameter d. the excitability is increased if the extracellular calcium concentration is decreased

Last Answer : the axons convey impulse away from the cell body

Description : Microfilaments may assist a. in the movement of fibroblasts in heart b. growth of axons c. contraction of all muscle d. all

Last Answer : all

Description : Which of the following is regarded as a unit of nervous tissue? (a) Neurons (b) Myelin sheath (c) Axons (d) Dendrites

Last Answer : (a) Neurons

Description : Receptor sites for neurotransmitters are present on (a) pre-synaptic membrane (b) tips of axons (c) post-synaptic membrane (d) membranes of synaptic vesicles.

Last Answer : (c) post-synaptic membrane

Description : Which of the following types of cells have a latent ability to regenerate? a) Stable Stable cells have a latent ability to regenerate if they are damaged or destroyed and are found in the ... a type of labile cell that multiply constantly to replace cells worn out by normal physiologic processes.

Last Answer : a) Stable Stable cells have a latent ability to regenerate if they are damaged or destroyed and are found in the kidney, liver, and pancreas, among other body organs.

Description : In artificial Neural Network interconnected processing elements are called A. nodes or neurons B. weights C. axons D. Soma

Last Answer : A. nodes or neurons

Description : Receptor sites for neurotransmitters are present on : (1) Pre-synaptic membrane (2) Tips of axons (3) Post-synaptic membrane (4) Membrane of synaptic vesicles

Last Answer : (3) Post-synaptic membrane

Description : Myelin sheaths are found: a) surrounding tendons b) covering the brain c) covering muscles d) around axons of neurons

Last Answer : ANSWER: D -- AROUND AXONS OF NEURONS

Description : In most axons, the myelin sheath is interrupted at intervals of about 1 millimeter or more. These interruptions are called the: a) glial b) nodes of Ranvier (pron: ron-vee-ay) c) collaterals d) nodes of Babinet

Last Answer : ANSWER: B -- Nodes of Ranvier

Description : During teeth eruption, the reduced enamel epithelium merges with the oral epithelium. What is the further development? A. Downgrowth of oral epithelium which replaces the reduced enamel ... which undermines the reduced enamel epithelium E. Gradual transformation of the reduced enamel epithelium

Last Answer : E. Gradual transformation of the reduced enamel epithelium

Description : Prolonged GIC setting time can be achieved by, A. Cool down the slab B. Increase the amount of distilled water

Last Answer : A. Cool down the slab

Description : Write a brief note on MEG?

Last Answer : Apart from measuring the electric field around the skull it is possible to measure the magnetic field directly in a technique known asmagnetoencephalography (MEG). This technique has the same temporal ... dendrites oriented in a way that gives rise to detectable magnetic fields outside the skull.

Description : Write a brief note on EEG?

Last Answer : By placing electrodes on the scalp it is possible to record the summed electrical activity of the cortex, in a technique known aselectroencephalography (FEG). EEG measures mass changes in ... thousandths of a second. EEG recordings have good temporal resolution, but poor spatial resolution.

Description : Write a short note on the damage and diseases of the brain?

Last Answer : The human brain is inclined to many types of damage and disease. The most common forms of physical damage are closed head injuries such as a blow to the head, a stroke, or poisoning by ... at least partially by brain dysfunctions, although the nature of such brain anomalies is not well understood.

Description : Write the names of Cerebral Cortex Lobes?

Last Answer : •Frontal Lobes • Occipital Lobes •Parietal Lobes • Temporal Lobes

Description : Write a short note on hind brain?

Last Answer : The hindbrain extends from the spinal cord and is composed of the metencephalcn andmyelencephalon. The metencephalon contains structures such as the pons and cerebellum. These regions assists in ... is responsible for controlling such autonomic functions as breathing, heart rate, and digestion.

Description : Write a note on Peripheral Nervous System?

Last Answer : The Peripheral Nervous System consists of all the sensory nerves and the motor nerves (these carry messages to other parts of the body from the brain and spinal cord). Sensory nerves ... (sometimes called inter neurons). Sensory, intermediate and motor nerves have gaps between them called synapses

Description : Write a brief note on Brain?

Last Answer : The brain is traditionally divided into three parts, the hindbrain, the midbrain, and the forebrain. This drawing is roughly what it would look like if you sliced your brain straight down the middle, like a part in your hair. The front of the brain is on the left, the back on the right.

Description : Write a short note on Spinal Cord?

Last Answer : The spinal cord runs from the base of the skull all the way down the spine to the "tail bone." The neurons are found in an H-shaped space within the spinal vertebrae. There are motor pathways coming ... movements! All that is needed is the muscle strength to Stanc and, of course, a lot of practice.

Description : Write a note on Magnetoencephalography (MEG)?

Last Answer : MEG detects the tiny magnetic fields created as individual neurons "fire" within the brain. It can pinpoint the active region with a millimeter, and can follow the movement of brain activity ... noninvasive requiring only that the subject's head lie within a helmet containing the magnetic sensors.

Description : Write a note on The Electroencephalograph (EEG)?

Last Answer : This device measures electrical activity (brain "waves") that can be detected at the surface of the scalp. It can distinguish between, for example, sleep and excitement. It is also useful in diagnosing brain disorders such as a tendency to epileptic seizures.

Description : Write a note on The Cerebral Hemispheres?

Last Answer : Each hemisphere of the cerebrum is subdivided into four lobes visible from the outside: •frontal • parietal • occipital • temporal

Description : Write a short note on Forebrain?

Last Answer : The anterior most division of the developing vertebrate brain that contains the most complex neural network in the CNS. The forebrain has two major divisions, the lower diencephalon, which contains the thalamus and the hypofhalmus, and the upper telencephalon, which contains the cerebrum.

Description : Write a short note on Midbrain?

Last Answer : This part of the brain is located between the hindbrain and the forebrain making up part of the brain stem. All sensory and motor information going to and from the fore brain and the spinal cord must pass through the midbrain, it can also be refered to as the relay station.

Description : Write a note on the glandular systems?

Last Answer : The body has two types of glandular systems, the endocrine, which generally secrete hormones through the bloodstream, and the exocrene which secrete fluids to the outer surfaces of the body, such as sweating.

Description : Write a short note on nervous system?

Last Answer : The physical structure of the body plays an important role in the behavior of an individual. The most important physical structure for psychologists is the nervous system. The nervous system carries orders ... a: muscles; it also carries signals from stimuli receptors to the spinal cord and brain.

Description : Write a short note on Hindbrain?

Last Answer : The hindbrain is a well protected central core of the brain and includes the cerebellum, reticular formation, and the brain stem. The cerebellum plays an important role in the integration of sensory ... the brain which is involved in stereotypical actions, such as walking, sleeping, and lying down.

Description : Explain the left hemisphere area related to language?

Last Answer : The first language area within the left hemisphere to be discovered is Broca's area, named after Paul Broca, who discovered the area while studying patients with aphasia, a language disorder. Broca's area doesn't ... the difference between "The boy was hit by the girl" and "The girl hit the boy."

Description : Define the treatment of Muscular Dystrophy ?

Last Answer : There is no specific treatment to stop or reverse any form of MD. Treatment may include physical therapy, respiratory therapy, speech therapy, orthopedic appliances used for support, and ... may need assisted ventilation to treat respiratory muscle weakness and a pacemaker for cardiac abnormalities.

Description : Which area of the brain is related to language?

Last Answer : The two hemispheres are thought to contribute to the processing and understanding of language: the left hemisphere processes the linguistic meaning of prosody (or, the rhythm, stress, and intonation ... brains are capable of adapting to difficult circumstances, if the df.mage occurs early enough.

Description : What are the Effects of brain damage?

Last Answer : A key source of information about the function of brain regions is the effects of damage to them. In humans, strokes have long provided a "natural laboratory" for studying the effects of brain ... often crosses into multiple regions of the brain, not along clear-cut borders, making it difficult to