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Blood-Brain Barrier and Peripheral System

by: Cydney Tinsley

Blood-Brain Barrier and Peripheral System PSYC 1000

Marketplace > University of Colorado Denver > Psychology (PSYC) > PSYC 1000 > Blood Brain Barrier and Peripheral System
Cydney Tinsley
CU Denver
GPA 3.2

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About this Document

These notes cover some systems of the body, vocabulary, and systematic functions.
Introduction to Psychology
Alex Northcutt
Class Notes
25 ?




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This 2 page Class Notes was uploaded by Cydney Tinsley on Friday September 30, 2016. The Class Notes belongs to PSYC 1000 at University of Colorado Denver taught by Alex Northcutt in Fall 2016. Since its upload, it has received 24 views. For similar materials see Introduction to Psychology in Psychology (PSYC) at University of Colorado Denver.


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Date Created: 09/30/16
Cydney Tinsley Psychology Week 6: Blood Brain Barrier and Peripheral Nervous System Blood-Brain Barrier and Peripheral Nervous System 1. Three things that help protect your brain: a. Meninges b. Cerebral Spinal Fluid (CSF) c. Blood-Brain Barrier 2. Dura Mater: Thick cushion for your brain. 3. Arachnoid Mater: Thinner layer. Creates space between itself and Pia Mater. 4. Pia Mater: Thin, clingy layer that actually touches your brain. Kind of like having saran wrap on your brain. 5. Subarachnoid Space: CSF flows through this space. This space is in between the arachnoid mater and pia mater. 6. Cerebral Spinal Fluid (CSF): Cushions the brain. Carries chemicals. Flows through the Lateral Ventricle, then the 3 Ventricle, then the 4 Ventricle. 7. Ventricles: Cavities in the brain filled with CSF. Also home to the Choroid Plexus. 8. Choroid Plexus: Creates and recycles CSF. 9. Hydrocephalus: Means “Water in the Brain”. When there is too much CSF in the brain or the CSF is not flowing/draining properly. 10.Blood-Brain Barrier: Made up of endothelial cells. A barrier between blood vessels in brain. a. What Effects What Goes Through Barrier: i. Size: Smaller things can pass through. ii. Lipid Soluble: If it is lipid soluble, than it can pass through. iii. Charge: If it has a lower charge or a neutral charge, it can pass through. 11.Endothelial Cells: Determines what can cross blood-brain barrier. 12.Astrocytes: Connects to outside of vesicles and makes sure neurons get nourishment. 13.Peripheral Nervous System: Made up of two systems: a. Autonomic System: Made up of para-sympathetic and sympathetic nerves. i. Sympathetic: 1. Fight or flight. 2. Pulls blood to muscles. 3. Dialates eyes. 4. Increases heartrate. 5. Increases blood flow. ii. Parasympathetic: 1. Rest and Digest. 2. Produces spit. 3. Increases blood to internal organs. 4. Retracts pupils. b. Somatic System: Made up of nerves that start at the spinal cord and go to the body. Doesn’t involve the nerves that actual live in the brain and spinal cord. i. Two types of cells: 1. Sensory: Cydney Tinsley Psychology Week 6: Blood Brain Barrier and Peripheral Nervous System a. Afferent. (Carries sensory info from outside the body to the inside.) 2. Motor: a. Efferent. (Carries motor commands from the nervous system). ii. Reflexes: Goes from receptor, to sensory, to integrating, to motor. 14.Neuropathy: A virus that hangs out on a nerve or spinal/cerebral neurons. 15.Endocrine System: A series of glands that produce hormones to regulate metabolism, growth/development, sexual function, reproductive function, sleep, mood, and stress. a. Pineal Gland: Produces melatonin (regulates sleep). b. Pituitary Gland: Reduces hormones. Chemical substance released in blood. Controls sex functions, growth functions, skin pigmentation, and releases oxytocin. c. Hypothalamus: Four Fs: Fight, Flight, Food, and Sex. d. Thyroid: Regulates metabolism. e. Adrenal Gland: Regulates cortisol (arousal and stress) and adrenaline. f. Negative Feedback Loop: Way of regulating hormones. A stress responses.


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