O Sensory (stretch) receptor 2 Sensory (afferent) neuron Motor (efferent) neuron Effector organ (a) Monosynaptic stretch reflex Sensory receptor 2 Sensory (afferent) neuron 3 Interneuron Motor (efferent) neuron 6 Effector organ (b) Polysynaptic withdrawal reflex Figure 12.11 Types of reflex arcs. (a) A monosynaptic reflex arc has two neurons and a single synapse. (b) A polysynaptic reflex arc has more than two neurons (in this case, three) and therefore has at least two synapses. The five components of a reflex arc are indicated by number.

Q: Which cells myelinate the axons of central and peripheral nervous system neurons? Why is myelination…

A: Myelination is a process by which the axons of nerve cells are covered by a fatty insulating layer…

Q: 2. You put your hand on a hot stove eye. Please explain the flow of information along ALL neural…

A: Reflex arc is a neural pathway which is involved in the reflex process. This reflex arc contains 5…

Q: List the components of reflex arc in correct sequence?

A: Reflex Arc: When actions are being taken without the input of brain, these are known as a REFLEX.  A…

Q: Using the neurons below, how can you decrease the connection strength (amplitude of EPSP) onto the…

A: Disclaimer: "Since you have asked multiple questions, according to the guidelines of Bartleby, only…

Q: Which statement regarding neurotransmission through myelinated and unmyelinated neurons is true?…

A: Myelin sheath is modified plasma membrane that wraps around nerve axon and acts as insulator. The…

Q: You are observing in a Physical Therapy clinic and a patient presents with back pain. The images…

A: A ‘reflex arc' is the path that nerve impulses follow to trigger a reaction. Because this process…

Q: Starting with the frontal lobe, trace every neuron in a voluntary somatic motor action such as…

A: This Much of the brain and the  nervous system is the  devoted to the processing of the  sensory…

Q: Define the term stretch reflex and describe how such reflexes are used to anatomically localize SCI

A: Stretch reflex, also known myotatic reflex is defined as the muscle contraction in response to…

Q: you are at your brothers wedding and as you watch the ceremony you see the best man start to faint.…

A: The reflex pathway is a pathway that provides fast, programmed reactions to stimuli without…

Q: Give a short note on the reflex action ?

A: A reflex action is an autonomic and rapid response to a stimulus, which minimizes any damage to the…

Q: The shape of the cell bodies of upper and lower motor neurons are structurally classified as…

A: Neurons (nerve cells) express electrical excitability, the ability to react to and transform an…

Q: We know that a reflex arc is a circuit, but what are the nerve connections arc called?

A: Answer: Introduction: A reflex arc is a neural and sensory pathway that maintains a reflex.  Reflex…

Q: What are the components of a reflex arc and what is the difference between a somatic motor reflex…

A: The Human Nervous system is a very efficient system of communication between the various parts of…

Q: One of your patients, a young man in his mid-20s called Jeff has suffered from  seizures for as long…

A: Seizures is clinical manifestation of Transient disturbance of cerebral functions. Epilepsy   is a…

Q: Is the patellar reflex altered during Jendrassik’s maneuver?  If so, How and why do you think this…

A: Jendrassik's manuever: Jendrassik's maneuver is also known as reinforcement. When the deep reflexes…

Learning and memory

Learning is defined as a relatively permanent and irreversible adaptive change in behavior. It always results from experience. The ability of an organism to store and recall the effects, sensations, and knowledge gained through learning and experience is called memory.