Description : What happens at the synapse between two neurons?
Last Answer : What happens at the synapse between two 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 : Each preganglionic axon braches and can therefore synapse, with as many as a. 4 neurons b. 6 neurons c. 8 neurons d. 10 neurons
Last Answer : 10 neurons
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 : What is a presynaptic neuron ?
Last Answer : Parts of two neurons combine to form synapses. The neuron that participates in the formation of the axon synapse is called the presynaptic neuron.
Description : The effect of calcium ions on neurotransmitter release at synapses include: a. vesicular fusion b. tonic depolarization of the presynaptic neurone c. post-tetanic potentiation d. all above
Last Answer : all above
Description : The following are true about the neurotransmitters: a. acetylcholine is inactivated mainly by presynaptic reuptake b. tyrosine is essential for the formation of dopamine c. noradrenaline is inactivated mainly by hydrolysis d. adrenaline is formed from methylation of the noradrenaline
Last Answer : adrenaline is formed from methylation of the noradrenaline
Description : The following are true about acetylcholine: a. it is synthesized from acetyl-coenzyme A and choline b. its formation is catalysed by acetylcholinesterase c. at the synaptic cleft, ... inactivated by hydrolysis d. reuptake by the presynaptic neurones play an important in inactivating acetylcholine
Last Answer : at the synaptic cleft, it is inactivated by hydrolysis
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 : The figure shows an axon terminal and synapse. Select the option giving correct identification of labels A-D. A C D B (a) A-Action potential, C-Neurotransmitter (b) B-Neurotransmitter, D- Receptor capsules (c) C-Receptor, D-Synaptic vesicles (d) A-Axon terminal, B- Serotonin complex
Last Answer : c) C-Receptor, D-Synaptic vesicles
Description : Antitussives act by: A. Liquifying bronchial secretions B. Raising the threshold of cough centre C. Reducing cough inducing impulses from the lungs D. Both ‘B’ and ‘C’ are correct
Last Answer : D. Both ‘B’ and ‘C’ are correct
Description : Aspirin produces analgesia by: A. Preventing sensitization of peripheral pain receptors B. Affecting gating of pain impulses at spinal level C. Raising pain threshold at subcortical level D. Both ‘A’ and ‘C’ are correct
Last Answer : D. Both ‘A’ and ‘C’ are correct
Description : Choose the correct pathway of the transmission of impulses in the heart beat `:`
Last Answer : Choose the correct pathway of the transmission of impulses in the heart beat `:` A. Av node `rarr` ... of His `rarr ` SA node `rarr ` Purkinje fibres
Description : Which one of the following statements is correct? (a) Endocrine glands regulate neural activity, but not vice versa. (b) Neurons regulate endocrine activity, but not vice versa. (c ... endocrine glands. (d) Neither hormones control neural activity nor the neurons control endocrine activity.
Last Answer : (c) Endocrine glands regulate neural activity and
Description : What is synapse? -Biology
Last Answer : answer:
Description : What is the function of synapse ?
Last Answer : answer : These act as centers for transmitting information from one neuron to another. 3 These Stimulation Pick By Central In the nervous system Transmission By 3 These Neurotransmitters Objects Dripping ... ) to assist in data collection. 3 Acting as the physical structure of memory power.
Description : What is Synapse ?
Last Answer : The functional junction of two neurons that transmits chemical or electronic information from one neuron to another neuron is called synapse.
Last Answer : : The junction of two neurons or the junction of a neuron and an effector (such as a muscle or gland) is called a synapse.
Description : Label te parts in the given diagram of axon terminal and synapse
Last Answer : Label te parts in the given diagram of axon terminal and synapse
Description : Type of synapse in which transmission of impulse across neuron is similar to conduction along a single axon
Last Answer : Type of synapse in which transmission of impulse across neuron is similar to conduction along a single axon
Description : Transmitter substance released at the synapse is
Last Answer : Transmitter substance released at the synapse is A. Secretin B. Cholecystokinin C. Cholesterol D. Acetylcholin
Description : What is the function of a inhibitory synapse?
Last Answer : What is the answer ?
Description : How are the neurotransmitter molecules inactivated after they are released at a synapse?
Last Answer : After a chemical neurotransmitter has been released from the synaptic terminal, its action must be terminated in some way. Otherwise, the continued presence of the transmitter in the ... mechanism is used to inactivate Acetylcholine released from the synaptic terminals of the motor neurons.
Description : Differences between the M cells and P cells include: a. M cells have larger cell bodies than P cells b. M cells have slower conduction rate than P cells c. M cells have larger receptive field than P cells d. M cells do not synapse in lateral geniculate body whereas P cells do
Last Answer : M cells have larger receptive field than P cells
Description : True statements about the following neurotransmitters include: a. dopamine is formed from tyrosine b. in the synapse, noradrenaline is inactivated by active reuptake into the presynpatic terminals c. noradrenaline is formed by hydroxylation of dopamine d. all above
Description : At the adrenergic synapse, the concentration of adrenaline in synaptic cleft: a. increased by cocaine which inhibit reuptake of adrenaline b. decreased by MAO (monoamine oxidase) - inhibitors c. controlled chiefly by the activity of the enzyme COMT d. increased by noradrenaline receptor blockers
Last Answer : increased by cocaine which inhibit reuptake of adrenaline
Description : Following drugs act at the synapse level. a. morphine b. strychnine c. tranquilizers d. All
Last Answer : All
Description : The junction between the axon of one neuron and the dendrite of the next is called (a) constant bridge (b) junction point (c) a joint (d) a synapse.
Last Answer : d) a synapse.
Description : A diagram showing axon terminal and synapse is given. Identify correctly at least two of A - D. (a) A - Neurotransmitter, B - Synaptic cleft (b) C - Neurotransmitter, D - Ca++ (c) A - Receptor, C - Synaptic vesicles (d) B - Synaptic connection, D - K+
Last Answer : (c) A - Receptor, C - Synaptic vesicles
Description : What is Synapse?
Last Answer : The synapse is a gap between two cells. Synapses are one way junctions between neurons and other cells. The neurotransmitter is emitted from the axon of one cell and usually goes to the dendrite of the ... . Sometimes the signal goes to the soma or the axon of the next cell instead of the dendrite
Description : Which of the following are NOT part of a neuron? a) synapse b) axon c) Nissl bodies d) dendrite
Last Answer : ANSWER: A -- SYNAPSE
Description : Can a nerve fibre and nerve both carry sensory and motor impulses?
Last Answer : There are the Mixed Nerves in the spinal column that carry bothsensory and motor nerves, but these neurons have 2 different jobsthat they do,& I know of no neurons doing both as the impulsestravel to 2 different locations which couldn't be done at the sametime.
Description : Antitussives act by (a) Liquifying bronchial secretions (b) Raising the threshold of cough centre (c) Reducing cough inducing impulses from the lungs (d) Both (b) and (c)
Last Answer : Ans: D
Description : Aspirin produces analgesia by (a) Preventing sensitization of peripheral pain receptors (b) Affecting gating of pain impulses at spinal level (c) Raising pain threshold at subcortical level (d) Both (a) and (b)
Description : Impulses from the pace -maker cause the (a) ventricles to contract (b) auricles to contract (c) both the ventricle and auricle to contract (d) heart to relax
Last Answer : Ans:(b)
Description : In the neurone: a. the magnitude of the action potential is dependent on the strength of the stimulus b. impulses can travel in both direction c. depolarization is accompanied by increased ... potassium ions d. during depolarization, the potential of the neurone changes from -70mV to +40mV
Last Answer : during depolarization, the potential of the neurone changes from -70mV to +40mV
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 : What during the day wind blows toward or away from land?
Last Answer : Feel Free to Answer
Description : In acoustics, _____ is the apparent change in frequency or pitch when a sound source moves either toward or away from a listener. A. flanking B. reverberation C. Doppler effect D. echo
Last Answer : C. Doppler effect
Description : The most dynamic change in business technology in recent year is a)The speed of the Printers b)The move away from mainframe computers toward network system c)The cost of computers d)none of the above
Last Answer : b)The move away from mainframe computers toward network system
Description : What is the process called, when cells will move toward attractants and away from danger? a. run and tumble b. chemotaxis c. Brownian movement d. gliding
Last Answer : b. chemotaxis
Description : Which of the following terms refers to moving away from midline? a) Abduction Abduction is moving away from midline. b) Adduction Adduction is moving toward midline. c) Inversion Inversion is turning inward. d) Eversion Eversion is turning outward.
Last Answer : a) Abduction Abduction is moving away from midline.
Description : In reference to the schematic symbol for a diode, do electrons flow toward or away from the arrow?
Last Answer : Toward the arrow.
Description : Assume that a ray of light passes from glass into air at an angle of incidence greater than zero degrees. Will the ray of light be bent toward or away from the normal as it passes into the air?
Last Answer : ANSWER: AWAY FROM
Description : The magnetic field produced by a long straight wire carrying a current points: w) in the direction of the current x) toward the wire y) away from the wire z) circles around the wire
Last Answer : ANSWER: Z -- CIRCLES AROUND THE WIRE
Description : A satellite travels at a constant speed in a circular orbit. The acceleration of the satellite is w) zero x) toward the center of the orbit y) away from the center of the orbit z) at a tangent to the orbit
Last Answer : ANSWER: X -- TOWARD THE CENTER OF THE ORBIT
Description : For an infinite sheet of positive charge, the electric field lines: w) run parallel to the sheet of charge x) are perpendicular to the sheet of charge and point in toward the sheet y) are perpendicular to the sheet of charge and point away from the sheet z) fall off as one over r squared
Last Answer : ANSWER: Y -- ARE PERPENDICULAR TO THE SHEET OF CHARGE AND POINT AWAY
Description : For a negative point charge, the electric field vectors: w) circle the charge x) point radially in toward the charge y) point radially away from the charge z) cross at infinity
Last Answer : ANSWER: X -- POINT RADIALLY IN TOWARD THE CHARGE