Astrocytes Guías de estudio, Notas de estudios & Resúmenes

When the presynaptic cell contacts a muscle cell, the synapse area is called a motor end plate. - ANSWER TRUE Briefly explain why the action potential flows only from the axon hillock to the terminal web. - ANSWER During the course of an action potential there is a refractory period that makes sure the action potential can't trigger backwards by the use of caps on gated sodium channels. The caps close and keeps the action potential flowing in one direction. How do the glial cells (i.e., m...

Where can you find bipolar neurons? Retina of the eye, olfactory region, and inner ear Where can you find unipolar neurons? Most sensory Where can you find multipolar neurons? Most CNS and efferent neurons Neuroglia of the CNS -astrocytes (blood-brain barrier) -microglial cells -ependymal cells -oligodendrocyte Neuroglia of the PNS -Schwann cells -satellite cells Olfactory nerve (CNI) 1- Smell Optic nerve (CNII) 2- visual

Bio 210 chapter 11 questions and answers rated A+ The nervous system is? The master controlling and communicating system of the body The three functions of the nervous system are? 1. Sensory input 2. Integration 3. Motor output The sensory input gathers information by the internal and external sensory receptors The integration function processes and interprets the sensory input The motor output function activates the effector organs (muscles and glads) and produces the appro...

Neurons - Individual cells in the nervous system that receive, integrate, and transmit information. glia cells (glia) - help the neurons by nourishing, insulating, replenishing, and modulating them Astrocytes (type of glial cell) - Provide structural and metabolic support for neurons. Astrocytes are large glial cells with round or radially symmetrical forms; they surround neurons and are in close contact with the brain's vasculature. An astrocyte makes contact with blood vessels at special...

Portage Learning BIOD 152 A&P 2 Final Exam ((PLEASE ZOOM IN IF THE WORDS APPEAR SMALLER ON YOUR DEVICE)) Bipolar It has two extensions from the central cell body. Multipolar Unipolar Pseudounipolar Name and describe what is occurring in the neuron cell membrane in section 4 of the diagram. Include the charge of the membrane during this phase. Your Answer: • Afterpolarization (Hyperpolarization) Potassium gates are slow to close and there is an u...

Portage Learning BIOD 152 A&P 2 Final Exam ((PLEASE ZOOM IN IF THE WORDS APPEAR SMALLER ON YOUR DEVICE)) Bipolar It has two extensions from the central cell body. Multipolar Unipolar Pseudounipolar Name and describe what is occurring in the neuron cell membrane in section 4 of the diagram. Include the charge of the membrane during this phase. Your Answer: • Afterpolarization (Hyperpolarization) Potassium gates are slow to close and there is an undershoot of the potential. • The charge drops ...

CBE 564 Final [3/23] BBB - correct answer -- Astrocytes - correct answer -star-shaped -biochemical support -nutrients, ion balance -repair after injury Pericytes - correct answer -wrap around capillaries -blood flow -maintain BBB -immune cell entry Microglia cells - correct answer -immune cells in the brain -scavenge for plaques; damaged or unused neurons or synapses, or infectious agents -survey environment, send and receive signals -Phenotype change, become more reactive, pha...

Portage Learning Questions with complete solution 2024 This is a collection of cell bodies found in the peripheral nervous system. - correct answer Ganglia This part of the autonomic system increases digestion. - correct answer Parasympathetic The ventral root of a nerve contains what type of neurons? - correct answer Motor (Efferent) This part of a neuron conducts nerve impulses away from the cell body. - correct answer Axon An interneuron inside the spinal cord is part of t...

BIOD 152 Sensory Information Module 2 Exam Questions with Approved answers 2023/2024 This is the most superficial layer of the brain meninges - correct answer Dura Mater (Menix) This layer of the meninges is tightly attached to the brain. - correct answer Pia mater (Menix) The _______ fissure separates the right and left cerebral hemispheres. - correct answer median The ______ fissure separates the cerebrum from the cerebellum. - correct answer Transverse Describe the functi...

Branchlike parts of a neuron that are specialized to receive information - Answer-Dendrites The part of the neuron that contains the nucleus, which processes and integrates information - AnswerCell Body / Soma A threadlike extension of a neuron that carries nerve impulses away from the cell body - Answer-Axon Nerve - Answer-A bundle of axons makes up a ___ Branches of the axon that allow one neuron to pass the signal to multiple effectors - Answer-Axon Collaterals At the axon hillock - Ans...