• 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
WELCH Notes Chapter 12
WELCH Notes Chapter 12

... 2. Patterns of electrical activity are called brain waves and fall into four types: a. Alpha waves are regular, rhythmic, low-amplitude, synchronous waves that indicate calm wakefulness. Ex. person awake with eyes closed; absent when asleep b. Beta waves have a higher frequency than alpha waves and ...
슬라이드 1
슬라이드 1

...  Brain organization  General organization and terms used to describe it  Examine how the 3D structure of the brain arises through development  Cerebral neocortex ...
Reflex arc - Mount Carmel Academy
Reflex arc - Mount Carmel Academy

...  Helps regulate body temperature  Controls water balance  Regulates metabolism ...
Spice - CAP Members
Spice - CAP Members

... These four effects are used by scientists to predict Δ9-THC-like psychoactivity in humans Hometown Citizens - Homeland Heroes ...
Chapter 12: The Central Nervous System
Chapter 12: The Central Nervous System

... and REM sleep, and indicate how their patterns change through life. 14. Describe consciousness clinically. 15. Compare and contrast the stages and categories of memory. 16. Describe the relative roles of the major brain structures believed to be involved in declarative and procedural memories. 17. D ...
The Nervous System - Cathkin High School
The Nervous System - Cathkin High School

... The autonomic nervous system (ANS) is responsible for regulating internal structures such as the heart, blood vessels etc. ...
Chapter 49 Worksheet: Nervous Systems The Evolution and
Chapter 49 Worksheet: Nervous Systems The Evolution and

... information reaches the cerebral cortex and thereby controlling how alert or aware a person is. 7. Relate the specific regions of the cerebrum to their functions. The cerebral cortex in mammals is vital for perception, voluntary movement, and learning. The corpus callosum enables communication betwe ...
The Nervous System 9.14 Brain
The Nervous System 9.14 Brain

... mass of specialized capillaries from the pia mater B. Choroid plexuses projects into the ventricles & secretes cerebrospinal fluid which is formed in the lateral ventricles C. cerebrospinal fluid slowly circulates (flows) into the third and fourth ventricles and into the spinal cord's central canal. ...
The Nervous System
The Nervous System

... Disorders of the Nervous System – symptoms, prevention, treatment ...
Lecture notes for Chapter 12
Lecture notes for Chapter 12

... ventricle, enclosed by pia mater and surrounding layer of ependymal cells CSF is filtered from plexus at constant rate Ependymal cells use ion pumps to control composition of CSF and help cleanse CSF by removing wastes Cilia of ependymal cells help to keep CSF in motion Normal adult CSF volume of ~1 ...
BCI Concept
BCI Concept

... to study how brain cells function as a network and to learn more about one of the most complex devices in the known universe: the human brain. to find out exactly how the neurons do what they do and extract those rules and apply them in software or hardware for novel types of computing By watching t ...
biological bases of behavior
biological bases of behavior

... (hunger, thirst) and emotions such as pleasure, fear, rage, and sexuality c. Amygdala and Hippocampus- two arms surrounding the thalamus, important in how we process and perceive memory and emotion ...
felix may 2nd year neuroscience Investigation into the response to
felix may 2nd year neuroscience Investigation into the response to

... times more glial cells than neurons. Glia are non-neuronal cells that support neuronal function by optimising the local environment and providing trophic factors and nutrients, having a homeostatic function. Unlike neurons glia continue to proliferate throughout life, especially during the reaction ...
Slide 1
Slide 1

... capillaries & thick basal lamina significantly reduce the usual permeability  Astrocytes provide highly selective transport mechanisms to control what substances reach the neurons; allows nutrients such as O2, CO2 ...
Mission Log - Web Adventures
Mission Log - Web Adventures

... Episode Four Briefing: Mission Log Teacher Version TEACHER DIRECTIONS: Ask students to complete the right-hand column as they move through the game. Answers are provided here, but Page 9 has a master that can be copied for students as a handout. Question ...
can - Austin Community College
can - Austin Community College

... of what is happening around them and think more ...
Mapping Your Every Move
Mapping Your Every Move

... CDBE2010 study group and the European Brain Council. The economic cost of brain disorders in Europe. European Journal of Neurology 2012; 19: 155–162. 3. Tolman, EC. Cognitive maps in rats and men. Psychol. Rev. 1948; 55: 189-208. 4. O'Keefe J, Dostrovsky J. The hippocampus as a spatial map. Prelimin ...
Chapter 7 Body Systems
Chapter 7 Body Systems

...  Small but functionally important area of the brain, performs many functions of greatest importance for survival and enjoyment  Links mind and body  Links nervous system to endocrine system ...
Ch. 7 - The Nervous System
Ch. 7 - The Nervous System

... 2. No permanent brain damage B. Contusion 1. Nervous tissue destruction occurs 2. Nervous tissue does not regenerate C. Cerebral edema 1. Swelling from the inflammatory response 2. May compress and kill brain tissue D. Cerebrovascular Accident (CVA) ...
Chapter 7 Outline - Navarro College Shortcuts
Chapter 7 Outline - Navarro College Shortcuts

... of a neuron. Neurons are then classified as either afferent (sensory), efferent (motor), or association neurons, and the role of each type is presented. Discussion of the physiology of nerve impulses is next, focusing on the two functional properties of neurons, irritability and conductivity. Both o ...
1. What different types of attention exist? Name and describe at least
1. What different types of attention exist? Name and describe at least

... Endogenous / selective / top-down attention: attention deliberately directed by the brain to serve a behavioral goal, e.g., focusing of auditory attention to a specific speaker in at a social event. Sustained attention: attention devoted to a specific task for a prolonged period of time. Alternating ...
The Nervous System
The Nervous System

... environments. Sensory input can be in many forms, including pressure, taste, sound, light, blood pH, or hormone levels, that are converted to a signal and sent to the brain or spinal cord. ...
animal ppt
animal ppt

... • Hermaphroditic (both male & female) & asexual by fission • Cephalization (concentration of sense organs and nerve tissue at anterior end) Brain and Eyespots • Digest and circulate nutrients in Tapeworm gastrovascular cavity • Parasitic worms have a cuticle which prevents digestion by host. • Flame ...
DEPRESSION DISORDERS 1 Disorders Studied On Depression
DEPRESSION DISORDERS 1 Disorders Studied On Depression

... disturbances in the brain which can cause and contribute to depression. The seventh portion of the brain that is affected by depression is the Neuroplasticity (NP). The (NP) is altered by depression and causes these problems in the body chronic stress reduces synaptic and dendrite plasticity, and Sh ...
Neurotoxicity
Neurotoxicity

... produces hypoxia such as CO will affect the brain and leads to the early signs of dysfunction in the myocardium and neurons. • Anoxia: the relationship between the nervous system and the respiratory system. • The high metabolic rate of neurons requires that they be well supplied with oxygen and a ra ...
< 1 ... 40 41 42 43 44 45 46 47 48 ... 127 >

Blood–brain barrier



The blood–brain barrier (BBB) is a highly selective permeability barrier that separates the circulating blood from the brain extracellular fluid (BECF) in the central nervous system (CNS). The blood–brain barrier is formed by brain endothelial cells, which are connected by tight junctions with an extremely high electrical resistivity of at least 0.1 Ω⋅m. The blood–brain barrier allows the passage of water, some gases, and lipid-soluble molecules by passive diffusion, as well as the selective transport of molecules such as glucose and amino acids that are crucial to neural function. On the other hand, the blood–brain barrier may prevent the entry of lipophilic, potential neurotoxins by way of an active transport mechanism mediated by P-glycoprotein. Astrocytes are necessary to create the blood–brain barrier. A small number of regions in the brain, including the circumventricular organs (CVOs), do not have a blood–brain barrier.The blood–brain barrier occurs along all capillaries and consists of tight junctions around the capillaries that do not exist in normal circulation. Endothelial cells restrict the diffusion of microscopic objects (e.g., bacteria) and large or hydrophilic molecules into the cerebrospinal fluid (CSF), while allowing the diffusion of small hydrophobic molecules (O2, CO2, hormones). Cells of the barrier actively transport metabolic products such as glucose across the barrier with specific proteins. This barrier also includes a thick basement membrane and astrocytic endfeet.
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report