Description : Consider the following statements: 1. Propagation of a nerve impulse in a myelinated nerve fibre is different from that of unmyelinated fibre. 2. The impulse actually travels by leaping through the nodes of Ranvier in an unmyelinated fibre 3. ... incorrect? (a) 1, 2 (b) 1, 3, 4 (c) 2 only (d) 2, 3
Last Answer : Ans:(d)
Description : Which of the following statement is correct for node of Ranvier of nerve? (a) Neurilemma is discontinuous. (b) Myelin sheath is discontinuous. (c) Both neurilemma and myelin sheath are discontinuous. (d) Covered by myelin sheath.
Last Answer : (b) Myelin sheath is discontinuous.
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 : How do you feel about being interrupted? Do interruptions bother you?
Last Answer : That depends entirely on the circumstance. I don't get annoyed if I don't enjoy the project (certain repairs come to mind) and even when I'm concentrating, if my mood is OK, I don't get bothered, I can ... back. It's a mood thing, I hadn't realized that until I thought it out for this Q. Thanks!
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 : A resting nerve is relatively resistant to blockade by lignocaine compared to one which is repeatedly stimulated because: A. Lignocaine penetrates resting nerve membrane poorly B. Lignocaine binds ... promotes ionization of lignocaine D. Nodes of Ranvier are inaccessible in the resting state
Last Answer : B. Lignocaine binds more avidly to the inactivated Na+ chan
Description : The following are true about the sodium channels: a. they are made up of polypeptide chains b. have the highest densities at the nodes of Ranvier c. open in response to depolarization d. remain open as long as depolarization is maintained
Last Answer : have the highest densities at the nodes of Ranvier
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 is Myelin Sheath ?
Last Answer : : A layer of isolated fatty substance beneath the neurallama is called myelin sheath .
Description : Myelin sheath is the covering of
Last Answer : Myelin sheath is the covering of A. Muscle cell B. Axon C. Blood vessels D. Osteocyte
Description : Cells which envelop nerve fibres and form myelin sheath around the axon are
Last Answer : Cells which envelop nerve fibres and form myelin sheath around the axon are
Description : Phospholipids occur in (A) Myelin sheath (B) Stabilizes chylomicrans (C) Erythrocyte membrane (D) All of these
Last Answer : Answer : D
Description : What is Myelin sheath?
Last Answer : They fatty sheath covering on the axon is called Myelin sheath.
Description : Myelin sheath is produced by (a) astrocytes and Schwann cells (b) oligodendrocytes and osteoclasts (c) osteoclasts and astrocytes (d) Schwann cells and oligodendrocytes.
Last Answer : (d) Schwann cells and oligodendrocytes.
Description : Myelin sheath is produced by : (1) Astrocytes and Schwann cells (2) Oligodendrocytes and Osteoclasts (3) Osteoclasts and Astrocytes (4) Schwann cells and Oligodendrocytes
Last Answer : (4) Schwann cells and Oligodendrocytes
Description : Glial (pron: glee-el) cells are found in the: a) muscular system b) digestive system c) endocrine system (pron: en-de-kren) d) nervous system
Last Answer : ANSWER: D -- NERVOUS SYSTEM
Description : Which of the following describes the type of fruit characterized as a simple, dry, one-seeded indehiscent (pron: in-deh-HISS-ent) fruit with seed attached to one ovary wall at only one point. Is it: a) drupe b) achene (pron: AY-keen) c) glume (pron: gloom) d) none of the above
Last Answer : ANSWER: B -- ACHENE
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 : Why are car loans always secured with collaterals?
Last Answer : The car can always be repossessed if the owner stops paying offthe loan.
Description : There are three commonly detectable points of zero polarization of diffuse sky radiation, neutral points, lying along the vertical circle through the sun. Which of the following is NOT one of these points? Is it the: w) Arago Point x) Babinet Point y) Brewster Point z) Longfellow Point
Last Answer : ANSWER: Z -- LONGFELLOW POINT
Description : in shugo chara what website can i use to watch season 2 full episodes in English sub. without interruptions like paying or privet connection also viruses?
Last Answer : `like i know that
Description : Which of the following are the basic factors of effective listening ? (A) Opinionation, stare and glare and interruptions (B) Aggressive questioning, continuous cues and frequent movement (C) ... , and offering advice (D) Acknowledgement of thoughts, reflection, and asking open-ended questions
Last Answer : (D) Acknowledgement of thoughts, reflection, and asking open-ended questions
Description : What are your opinions on Gary Vee?
Last Answer : Huh?
Description : What Is Dual Vee Model?
Last Answer : The Dual Vee Model, like the V-Model is a systems development model designed to simplify the understanding of the complexity associated with developing systems. In systems engineering it is used to define ... of the Dual Vee Model when applied as a reminder model for development of complex systems.
Description : The Vee-Bee test is suitable for concrete mixes of low and very low workabilities (a) True (b) False (c) Not known (d) All the above
Last Answer : (a) True
Description : Workability of a concrete – mix is determined by (i)Slump cone test (ii)Compaction factor test (iii)Vee bee test [ A ] i [ B ] ii [ C ] i and ii [ D ] i, ii and iii
Last Answer : [ D ] i, ii and iii
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 are six types of glial cells?
Last Answer : Need answer
Description : What are Glial cells?
Last Answer : The amount of glial cells to every neuron in the nervous system is disputed. Glial cells function as support for the neurons; they produce the myelin sheath which surrounds some neurons ... which are called the nodes of Ranvier. Myelinated sheaths help transmit information quickly and efficiently.
Description : Which of the following is not true of the blood-brain barrier: A. It is constituted by tight junctions between the endothelial cells of brain capillaries and the glial tissue B. It allows passage ... of highly ionized drugs into the brain D. It regulates passage of substances from brain into blood
Last Answer : D. It regulates passage of substances from brain into blood
Description : People living at sea level have around 5 million RBC per cubic millimeter of their blood whereas those living at an altitude to 5400 metres have around 8 million. This is because at high altitude ... required amount of O2 to survive (d) there is more UV radiation which enhances RBC production.
Last Answer : (c) atmospheric O2 level is less and hence more RBCs are needed to absorb the required amount of O2 to survive
Description : How would you manage to survive an Apocalypse or why do you doubt you'd make it ay all?
Last Answer : I would raid local stores and hold up in a local jail using the bars for protection depending on the scenario
Description : If ax + by = a2 – b2 and bx + ay = 0, find the value of (x + y). -Maths 10th
Last Answer : Given, ax+by=a2−b2......(1) bx+ay=0.......(2). Now adding (1) and (2) we get, x(a+b)x+(a+b)y=a2−b2 or, (a+b)(x+y)=a2−b2 or, x+y=a−b.
Description : X, Y are the mid-points of opposite sides AB and DC of a parallelogram ABCD. AY and DX are joined intersecting in P. CX and BY are joined -Maths 9th
Last Answer : answer:
Description : Constructed externally on the sides AB, AC of ΔABC are equilateral triangle ABX and ACY. If P, Q, R are the midpoints of AX, AY -Maths 9th
Description : What is the full form of 'AY' ? -How To ?
Last Answer : The full form of 'AY' is Assessment Year
Description : Ang japan ay minsang sinakop ng anong bansa?
Last Answer : Japan
Description : Ito ay isang yugto ng kaunlaran ng isang lipunan?
Last Answer : KABIHASNAN IS THE ANSWER
Description : Bakit ang pamagat ng nobela ni liwayway ay titser?
Description : Ano ang iniisip at ginawa ni ibarra habang siya ay nasa kaniyang tinutuluyan?
Last Answer : What is the answer ?
Description : Madalas na magkasama sina Adela at Adelfa. Sila ay malimit mamasyal, kumain sa labas at maghuntahan. Dahil dito, sila ay itinuturing na magkaututang-dila.?
Last Answer : A. magkakambal C. matalik na magkaibiganB. mga tsismosa D. mga siningaling
Description : ABCD is a parallelogram with diagonal AC If a line XZ is drawn such that XZ ∥ AB, then BX/XC = ? (a) (AY/AC) (b) DZ/AZ (c) AZ/ZD (d) AC/AY Answer: (c) AZ/ZD 13. In the given figure, value of x (in cm) is (a) 5cm (b) 3.6 cm (c) 3.2 cm (d) 10 cm
Last Answer : (a) 5cm
Description : What is the number of white blood cells per cubic millimeter of blood in human body ?
Last Answer : : The number of white blood cells per cubic millimeter in human body is 4-10 thousand.
Description : How many millimeter are in a vase?