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 : (4) Fundamental unit of nervous system Explanation: A neuron is a cell that carries electrical impulses. Neurons are the basic units of the nervous system and its most important part is the brain. Every neuron is made of a cell body (also called a soma), dendrites and an axon.
Last Answer : Water cycle refers to - (1) an integrated attempt to recycle water in relatively arid regions (2) constant movement of water from ocean to land and back to ocean once again (3) ... management of water in areas excessively plagued with water-logging (4) water distribution in relatively dry area
Description : Neuron is the name given to which special type of biological cell? a) a nerve cell b) a brain cell c) a skin cell
Last Answer : ANSWER: A -- A NERVE CELL
Description : Reflex arc is made up of a chain of at least a. two neuron b. three neurons c. four neurons d. five neurons
Last Answer : two neuron
Description : Internal state of neuron is called __________, is the function of the inputs the neurons receives A. Weight B. activation or activity level of neuron C. Bias D. None of these
Last Answer : B. activation or activity level of neuron
Description : What part of the neuron carries nerve impulses away from the cell body?
Last Answer : AXON – A Long Fibre that CARRIES IMPULSES AWAY FROM THE CELL BODY. Each neuron has only ONE AXON. The Axon Ends in a series of small swellings called AXON TERMINALS.
Description : What is a nerve cell or neuron?
Last Answer : Neuron is the structural and functional unit of nervous tissue.
Description : Define Neuron or Nerve Cell.
Last Answer : Neuron or nerve cell is the basic structure and functional unit of the nervous system. All parts of the nervous system are made up of neurons.
Description : Neurons or artificial neurons have the capability to model networks of original neurons as found in brain A. True B. False
Last Answer : A. True
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 : What are the specialized nerve endings at the end of the sensory neurons is called?
Last Answer : Need answer
Description : Define Neurons and Nerve?
Last Answer : The basic structural and functional unit of nervous system is called neurons A nerve is bundle of axons that transmit messages from one part of body to another
Description : Chemicals by which nerve impulses transmit through one neuron by another are
Last Answer : Chemicals by which nerve impulses transmit through one neuron by another are
Description : Fate and destiny reconsidered - How sensitive are neurons in our brain to quantum effects?
Last Answer : This may be the wrong place to ask. Us jellies are smart but I don’t know many quantum physics professors here. Good question though.
Description : How many neurons are there in the human brain ?
Last Answer : The adult brain has a volume of 1500 cubic centimeters , an average weight of 1.38 kg and contains about 10 billion neurons.
Description : Synapse gap is present between which of the following? (1) Two neurons (2) Brain and Spinal Cord (3) Two Kidneys (4) None of these
Last Answer : (1) Two neurons Explanation: The gap between the two neurons is called the synapse. It is a structure that permits a neuron (or nerve cell) to pass an electrical or chemical signal to another neuron.
Description : Parkinson’s disease (characterized by tremors and progressive rigidity of limbs) is caused by degeneration of brain neurons that are involved in movement control and make use of neurotransmitter (a) acetylcholine (b) norepinephrine (c) dopamine (d) GABA.
Last Answer : c) dopamine
Description : Cell regulation can be thought of as the effector side of cell communication. Most commonly cell regulation occurs by means of extracellular chemical messengers. Which of the following statement(s ... d. Most hormones, local mediators, and neurotransmitters readily cross the cell plasma membrane
Last Answer : Answer: b, c Depending on how the extracellular messenger arrives, cell regulation can be classified as paracrine, endocrine, or neurocrine. In paracrine regulation, a chemical messenger ... , local mediators, and neurotransmitters are water-soluble and cannot readily cross the plasma membrane
Description : Which of the following statements about nerve growth factor is not true a. it is made up of 3 polypeptide subunits b. it is found in high concentration in the submaxillary salivery gland c. it is picked up by nerves from the organs they innervate d. it is present in brain
Last Answer : it is found in high concentration in the submaxillary salivery gland
Description : In which animal, nerve cell is present but brain is absent ?
Last Answer : In which animal, nerve cell is present but brain is absent ? A. Sponge B. Earthworm C. Cockroach D. Hydra
Description : In which of the following animals nerve cell is present but brain is absent? (a) Sponge (b) Earthworm (c) Cockroach (d) Hydra
Last Answer : (d) Hydra
Description : $ Cellular totipotency means that single cell can give rise to a fully grown multicellular organisms ! Meristematic cells are also called "stem cells"
Last Answer : $ Cellular totipotency means that single cell can give rise to a fully grown multicellular organisms ! Meristematic ... D. If both As and R are wrong.
Description : The synaptic pre-ganglionic neurons have their cell bodies in the lateral horn of the grey matter of the (a) Thoracic segment only (b) Lumbar segment only (c) Both (a) and (b) (d) None of the above
Last Answer : Ans: C
Description : If we were to get rid of the hormones within us and electrical nerve impulses of the brain, we would pretty much achieve zombie state, am I right?
Last Answer : Aren’t Zombies dead humans? We’d have to die first, no? Anyway, if we achieved zombie status, we wouldn’t know we’re in paradise so I vote no.
Description : How do signals from nerve endings retain information about their origins as they travel to the brain?
Last Answer : Harp. The answer is in the later part of your question. Each nerve has a dedicated line of transmission from the periphery to the brain. The signals travel fast owing to the fact that ... nerve ultimately signals to a specific part of the brain, which allows you to discriminate various sensations.
Description : How many nerve cells are destroyed and brain power is lost ?
Last Answer : When one-fourth of the nerve cells are destroyed, the capacity of the brain starts to decline.
Description : What is the number of nerve cells in the brain ?
Last Answer : 10000 million
Last Answer : The number of nerve cells in the brain is 10000 million
Description : What As they extend from the retina to the brain the nerve fibers?
Description : What is specialized nerve cells in the brain are called?
Last Answer : Feel Free to Answer
Description : Which nerve carries impulses from the eye to the brain?
Last Answer : The optic nerve
Description : The following cranial nerves contain parasympathetic outflow arising at the brain stem: a. optic nerve b. oculomotor nerve c. trigeminal nerve d. facial nerve
Last Answer : facial nerve
Description : The pain sensation a. arises from stimulation of free nerve endings b. is transmitted to the central nervous system by unmyelinated C fibres c. is transmitted to the brain via the spinothalamic tracts d. all above
Last Answer : all above
Description : The pain sensation a. arises from stimulation of free nerve endings b. is transmitted to the central nervous system by unmyelinated C fibres c. is transmitted to the brain via the ... d. is reduced by local anaesthetics through reduction of the potassium influx into the nerve fibres
Last Answer : is transmitted to the brain via the spinothalamic tracts
Description : True statement about the facial nerve include: a its nucleus is in the floor of the fourth ventricle b. its fibres reach the surface of the brain in the cerebellopontine angle c. transmits taste fibres for the anterior half of the tongue d. all above
Description : A person entering an empty room suddenly finds a snake right in front on opening the door. Which one of the following is likely to happen in his neuro- hormonal control system? ... brain. (d) Sympathetic nervous system is activated releasing epinephrine and norepinephrine from adrenal cortex.
Last Answer : (a) Sympathetic nervous system is activated releasing epinephrine and norepinephrine from adrenal medulla.
Description : Methyldopa lowers BP by: A. Inhibiting dopa decarboxylase in adrenergic nerve endings B. Generating α-methyl noradrenaline in brain which reduces sympathetic tone C. Generating α-methyl ... as a false transmitter in peripheral adrenergic nerve endings D. Activating vascular dopamine receptors
Last Answer : B. Generating α-methyl noradrenaline in brain which reduces sympathetic tone
Description : A person entering an empty room suddenly finds a snake right in front on opening the door. Which one of the following is likely to happen in his neuro-hormonal control system ? (1 ... across the cleft and transmit a nerve impulse (4) Hypothalamus activates the parasympathetic division of brain
Last Answer : (2) Sympathetic nervous system is activated releasing epinephrin and norepinephrin from adrenal medulla
Description : What is the difference between a neuron and a glial cell?
Last Answer : A: Neurons are the primary cells of the nervous system that transmit electrical and chemical signals, while glial cells are supportive cells that provide structural and nutritional support to neurons and help regulate their activity.
Last Answer : A: Neurons are specialized cells that transmit electrical and chemical signals in the nervous system, while glial cells provide support and insulation for neurons and also play a role in immune defense.
Last Answer : A: Neurons are specialized cells that transmit electrical and chemical signals in the nervous system, while glial cells provide support and protection for neurons, and help to maintain the proper functioning of the nervous system.
Last Answer : A: Neurons are responsible for transmitting and processing information in the nervous system, while glial cells support and protect neurons.
Description : What is it called when the change in cell voltage occurs when a neuron is stimulated?
Description : Consider the following statements: 1. In a resting neuron, there is difference in electrical charge on either side of surface membrane called potential difference. 2. It is due to unequal distribution of K+ ions and Na+ ions on either side if the ... ? (a) 1 only (b) 1, 2 (c) 1, 2, 3 (d) 1, 2, 3, 4
Last Answer : Ans:(b)
Description : Which cell disorder in our body is responsible for colour blindness? (1) WBC (2) Cone cell (3) Red Cell (4) Neuron
Last Answer : (2) Cone cell Explanation: Colour vision deficiency, commonly called colour blindness, results from a malfunction or absence of cone cells in the retina. Cone cellsare one of three types of ... of the human eye that is responsible for colour vision and function best in relatively bright lights.
Description : The long extension of the cell body of the neuron is called
Last Answer : axon.
Description : The short projections arising from the cell body of neuron are called
Last Answer : dendrites.
Description : The action potential of a neuron a. is initiated by efflux of Na+ b. is terminated by efflux of K+ c. declines in amplitude as it moves along the axon d. results in a transient reversal of the ... the cell membrane e. is not associated with any net movement of Na+ or K+ across the cell membrane
Last Answer : is terminated by efflux of K+
Description : The fundamental structural and functional unit of nerves system is a. axon b. dendrite c. cell body d. neuron
Last Answer : neuron