• Study Resource
  • Explore
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
Histology of Nervous Tissue
Histology of Nervous Tissue

... • c. Multipolar neurons possess a single axon and more than one dendrite. • These neurons are the most common type of neuron in vertebrates. • d. Pseudounipolar neurons possess a single process that extends • from the cell body and subsequently branches into an axon and dendrite. • They are present ...
THERE IS A COMPUTER-LIKE SYSTEM IN OUR BODY
THERE IS A COMPUTER-LIKE SYSTEM IN OUR BODY

... over the body, about 100 millivolts in strength and lasting just 1 millisecond! These impulses “jump” from 1 neuron to another at the synapse. When the electrical impulse arrives at the synapse, it triggers the release of chemicals ...
The Nervous System
The Nervous System

... respect to the inside due to unequal concentrations of positive and negative ions on either side of the membrane.  Action potential – a change in polarization and a return to the resting state  This forms a nerve impulse that moves down an axon. ...
Chapter 8 Nervous System
Chapter 8 Nervous System

... 4. Homeostasis-Depends on the ability of the NS to detect, interpret, and respond to change in internal and external conditions. In response, the NS can stimulate or inhibit the activities of other systems to maintain homeostasis. ...
CNS Cellular Components - Johns Hopkins Medicine
CNS Cellular Components - Johns Hopkins Medicine

... glia that line the ventricles. They form a continuous layer of single cuboidal or columnar cells with cilia and microvilli at their apical, ventricular surfaces. In addition to providing a barrier between the brain the CSF, ependymal cells are thought to function in secretion, absorption and transpo ...
The Nervous System
The Nervous System

... normally occupied by the neurotransmitter can initiate a cellular response similar or identical to that produced by the neurotransmitter itself. Called a direct binding agonist ...
Nervous System Worksheet - Jackson County Faculty Sites!
Nervous System Worksheet - Jackson County Faculty Sites!

... 6. What does the somatic nervous system control? ____________________________________________ 7. What does the autonomic nervous system control? __________________________________________ 8. The autonomic nervous system (ANS) is further divided into two divisions – sympathetic and parasympathetic di ...
Chapter 12 - Marion ISD
Chapter 12 - Marion ISD

... Sympathetic - (fight or flight) Parasympathetic-normal resting activities (rest/repair) ...
neurohistology
neurohistology

... Many peripheral nerves are myelinatedresemble a string of sausages  Each link of sausage corresponds to a length of axon wrapped in myelin with adjacent links separated by a gap in myelin ...
A1990DM11000002
A1990DM11000002

... ples that was emerging in integrative neurobiology The criteria we proposed (necessity and suffiwas that complex information may be encoded at ciency) had been long used in other contexts, but the level of individual neurons. On the sensory side, they provided a relatively clear methodology for rene ...
BOX 31.2 DIFFERENCES BETWEEN THE VESTIBULAR AND
BOX 31.2 DIFFERENCES BETWEEN THE VESTIBULAR AND

... flocculonodular lobe. These excitatory neurons receive mossy fiber input, like granule cells, but synapse locally onto granule cells. Golgi cells feed back to unipolar brush cells with mixed glycinergic and GABAergic synapses, in contrast to the purely GABAergic feedback to granule cells (Dugue, Dum ...
Ascending Projections
Ascending Projections

... Modality-specific nociception: mechanical, thermal, itch Cutaneous input at neuroimmune interface: monitoring immune ...
nervous system jeopardy
nervous system jeopardy

... What is the tube-like structure that carries sound waves from the external ear to the ear drum? ...
The Journal of Neuroscience, June 1, 2003 • 23(11):4657– 4666
The Journal of Neuroscience, June 1, 2003 • 23(11):4657– 4666

... antisera and distinct fluorophores identified neurons infected with one or both of the recombinants. Brainstem neurons coinfected with both PRV recombinants, which presumably had collateralized projections to both adrenal sympathetic preganglionic neurons and gastrocnemius motoneurons, were observed ...
Introduction to Cellular and Molecular Neurobiology (and what it`s for).
Introduction to Cellular and Molecular Neurobiology (and what it`s for).

... A somatic reflex arc in which the final element in the chain is skeletal muscle. 1 Is some sensory transducer in the periphery, for example, a Golgi tendon organ, a Pacinian corpuscle or other tactile sensor in the skin. 2 The pseudounipolar sensory neuron in the circuit. Its soma is physically loca ...
Shape of Thought
Shape of Thought

... th.e brain gets really good at it. One can master unfortunate skills that are hard to forget. Great for knowing how to protect oneself, balance a bike, or drive a car. Not great when it comes to deferise mechanisms still in use long after the threat that created them has vanished. The reason psychot ...
The Nervous System
The Nervous System

...  Some people have higher thresholds for pain, heat or other stimuli. This means they can tolerate a stronger stimulus before their nervous system reacts with an impulse. ...
ANSWERS TO CHAPTER 8
ANSWERS TO CHAPTER 8

... 3. Multipolar neurons: several dendrites and one axon, includes motor neurons; bipolar neurons: one dendrite and one axon, found in the eye and nose; unipolar neurons: a single process that functions as an axon and a dendrite, includes most sensory neurons. 4. Astrocytes: participate with the endoth ...
The Nervous System
The Nervous System

... Neurons have a nucleus that contains genes. Neurons contain cytoplasm, mitochondria and other "organelles". ...
neurons
neurons

... Structure of the Cortex Each brain hemisphere is divided into four lobes that are separated by prominent fissures. These lobes are the frontal lobe (forehead), parietal lobe (top to rear head), occipital lobe (back head) and temporal lobe (side of ...
Brain PowerPoint
Brain PowerPoint

... INTERIOR STRUCTURES AND THEIR FUNCTIONS Hippocampus: In temporal lobe, strongly involved in learning and memory formation ...
PP text version
PP text version

...  Glia are the “glue” of the nervous system that support and surround neurons. Types:  radial glia: tracks for neurons to travel along during development  astrocytes: structural and metabolic support for neurons, communication between glia and neurons also likely. Astrocytes also aid in the genera ...
Everson Nervous system I. Functional/ Anatomical Divisions A
Everson Nervous system I. Functional/ Anatomical Divisions A

... d. Each contain a lateral ventricle (CSF) 2. Three main points about cerebral hemispheres: a. Each cerebral hemisphere receives sensory information from and sends motor information to the opposite side of the body b. The two hemispheres have different functions even though they appear identical c. A ...
Facial Nerve (VII) Abducens Nerve (VI)
Facial Nerve (VII) Abducens Nerve (VI)

... Cervical ...
doc nervous system notes
doc nervous system notes

... neurons; cling to neurons and neighboring capillaries to provide nutrients to neurons; help form the Blood-Brain Barrier by forming tight junctions between endothelial cells that lines the capillaries; provides proper environment for nerve impulse conduction (monitor calcium and potassium concentrat ...
< 1 ... 188 189 190 191 192 193 194 195 196 ... 274 >

Circumventricular organs

Circumventricular organs (CVOs) are structures in the brain that are characterized by their extensive vasculature and lack of a normal blood brain barrier (BBB). The CVOs allow for the linkage between the central nervous system and peripheral blood flow; additionally they are an integral part of neuroendocrine function. The lack of a blood brain barrier allows the CVOs to act as an alternative route for peptides and hormones in the neural tissue to the peripheral blood stream, while still protecting it from toxic substances. CVOs can be classified into (a) sensory and (b) secretory organs. The sensory organs include the area postrema (AP), the subfornical organ (SFO) and the vascular organ of lamina terminalis. They have the ability to sense plasma molecules and then pass that information into other regions of the brain. Through this, they provide direct information to the autonomic nervous system from the systemic circulation. The secretory organs include the subcommissural organ (SCO), the posterior pituitary, the pineal gland, the median eminence and the intermediate lobe of the pituitary gland. These organs are responsible for secreting hormones and glycoproteins into the peripheral vascular system using feedback from both the brain environment and external stimuli.All of the circumventricular organs, besides the SCO, contain extensive vasculature and fenestrated capillaries which leads to a ‘leaky’ BBB at the site of the organs. Furthermore, all CVOs contain neural tissue, allowing them to play a role in the neuroendocrine system. It is highly debated if the choroid plexus can be included as a CVO. It has a high concentration of fenestrated capillaries, but its lack of neural tissue and its primary role of producing cerebrospinal fluid (CSF) usually excludes the choroid plexus from the CVO classification.Research has also linked CVOs to body fluid regulation, cardiovascular functions, immune responses, thirst, feeding behavior and reproductive behavior.
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report