Description : The synaptic knobs represent the terminal endings of (a) the neuron (b) the dendron (c) the axon (d) the telodendria
Last Answer : Ans:(d)
Description : GABA(gama amino butyric acid) is (A) Post-synaptic excitatory transmitter (B) Post-synaptic inhibitor transmitter (C) activator of glia-cell function (D) inhibitor of glia-cell function
Last Answer : Answer : B
Description : Phenylephrine (a) Mimics the transmitter at post-synaptic receptors (b) Displaces transmitter from axonal terminal (c) Inhibits synthesis of transmitter (d) None of the above
Last Answer : Ans: A
Description : The following are true about the synaptic potential: a. the Na+ and K+ currents occurs simultaneously b. is a graded potential c. the channel is ligand-gated d. the post-synaptic potential is inhibitory when depolarizing
Last Answer : the Na+ and K+ currents occurs simultaneously
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 : 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 : Explain the mechanism of synaptic transmission. -Biology
Last Answer : answer:
Description : What is Synaptic Knob ?
Last Answer : The presynaptic membrane is actually part of the swollen edge of the axon of the presynaptic neuron. The swollen edge of the axon is called the synaptic knob .
Description : What is Synaptic Cleft ?
Last Answer : The synaptic membrane of the presynaptic neuron and the stsynaptic membrane of the postsynaptic neuron combine to form synapses. There is a fluid gap between these two membranes about 20 nanometers in length. It is called synaptic cleft .
Description : Synaptic vesicles occure in
Last Answer : Synaptic vesicles occure in A. Environmental B. Adaptive C. Habitual D. Both A and B
Description : What Molecules of what substances are stored in synaptic terminals?
Last Answer : Need answer
Description : In the context of synaptic transmission the reabsorption is called?
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 : When the electric impulse travels along the axon and reaches the other end called the synaptic terminal, this impulse triggers the release of – (1) Vesicles (2) Cleft (3) Mitochondria (4) All of the above
Last Answer : (1) Vesicles Explanation: The electrical impulses stimulate the release of vesicles. These store various neurotransmitters that are released at the synapse. Vesicles are essential for propagating nerve impulses between neurons and are constantly recreated by the cell.
Description : Which chemical substance is secreted into the synaptic cleft?
Last Answer : Acetyl choline
Description : The release of neurotransmitter from synaptic vesicles: a. takes place by exocytosis b. is controlled by neuronal calcium influx c. is quantal d. all above
Last Answer : all above
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 : 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 : 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 : 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 : Match the following cell structure with its characteristic feature. (A) Tight junctions (i) Cement neighbouring cells together to form sheet (B) Adhering junctions (ii) Transmit information through chemical to another cells (C) Gap ... iii) (c) (iii) (i) (iv) (ii) (d) (iv) (iii) (i) (ii)
Last Answer : (c) (iii) (i) (iv) (ii)
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.
Description : What is the difference between a sensory and a motor neuron?
Last Answer : A: Sensory neurons transmit information from sensory organs to the central nervous system, while motor neurons transmit information from the central nervous system to muscles and glands.
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 the difference between a sensory neuron and a motor neuron?
Last Answer : A: Sensory neurons transmit information from sensory receptors to the central nervous system, while motor neurons transmit information from the central nervous system to muscles or glands.
Description : What is the current research in ALS (motor neuron disease)?
Last Answer : I find Webmed.com to be a great site for medical overviews. If you want, I can post a link but since that is discouraged, you could go there yourself and search for “ALS.”
Description : Name the parts labelled A and B in the neuron drawn above. Which part acquires the information in the neuron ? NCERT Solutions for Class 10 Science Chapter 7 Control and Coordination HOTS Q7 -Biology-10
Last Answer : A-Dendrite, B-Axon Dandrite. Dandrite to cell body or cyton to axon. Electrical impulse In the region of synapse.
Description : Draw the structure of a neuron and explain its function. [AICBSE 2017] -Biology-10
Last Answer : Nerve cell or neuron is the functional unit of nervous system. A nerve cell has three parts- (i) cell body (ii) dendrite (iii) axon Function : The function of nerve cells is to carry information ... stimulus to send it to spinal cord and brain and carry the message from brain to the target organ.
Description : 8. What does a neuron look like? -Science
Last Answer : A neuron is a nerve cell consisting of the cell body with a nucleus and cytoplasm from which a long and thin hair like structure emerges. Every neuron has one elongated part known as the axon ... short and small branched structures known as dendrites. A single neuron can even be a meter long.
Description : Write a and b in the given flow chart of neuron through which information travels as an electrical impulse.Dendrite → a →b → End point of Neuron -Science
Last Answer : a. Axon b. Cell body
Description : What is myelinated neuron? -Biology
Description : What is non-myelinated neuron? -Biology
Description : What part of the neuron sends out messages?
Last Answer : The synapses.
Description : When you touch something hot, a neuron in your finger senses the temperature. Which happens first?
Last Answer : an action potential moves along the neuron
Description : How many actions does a neuron have ?
Last Answer : 1 Neuron has 1 action.
Description : What is afferent neuron ?
Last Answer : Neurons that carry stimuli from different tissues or organs to the central nervous system are called afferent neurons. It is also called Sensory Neuron .
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 : What is the unit of neuron ?
Last Answer : A single neuron of the nervous system
Last Answer : There are two main parts of neurons.
Last Answer : 1 neuron has 1 action.
Last Answer : Neuron consists of three parts. Namely: cell body oxygen dendron
Last Answer : Naturally People His All In life Of the brain Only 10 percent Use Used to Today Until Of the brain Most More Use Has done Scientist Albert Einstein.
Description : Which pollutant causes the following effects? 1. Causes dryness to throat 2. Causes damage to neuron 3. Causes headache, blurred vision
Last Answer : Which pollutant causes the following effects? 1. Causes dryness to throat 2. Causes damage to ... sulphide C. Hydrogen flouride D. Hydrogen cyanide.
Description : $ Neuron means a nerve cell. ! Neurons are found in the brain.
Last Answer : $ Neuron means a nerve cell. ! Neurons are found in the brain. A. If both As and R are correct and R ... , R is wrong D. If both As and R are wrong.
Description : Outer most layer of retina which holds sensory neuron like rods & cones is
Last Answer : Outer most layer of retina which holds sensory neuron like rods & cones is
Description : Property of excitability of neuron is due to
Last Answer : Property of excitability of neuron is due to
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 : 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