Chapter 12 Notes Part 1 File
... – Cell extensions connect to both neurons and capillaries – Transfer nutrients from the blood to the neurons – Constitute the blood-brain barrier (BBB) ...
... – Cell extensions connect to both neurons and capillaries – Transfer nutrients from the blood to the neurons – Constitute the blood-brain barrier (BBB) ...
THE_NERVOUS_SYSTEM_(Part_I)
... Choroid plexus capillaries prevent substances (like drugs) from penetrating brain tissues Blood born immune cells such as lymphocytes, monocytes, etc. can’t penetrate the barrier Makes infections, like meningitis, difficult to cure ...
... Choroid plexus capillaries prevent substances (like drugs) from penetrating brain tissues Blood born immune cells such as lymphocytes, monocytes, etc. can’t penetrate the barrier Makes infections, like meningitis, difficult to cure ...
Ch10 Reading Guide
... 1. Released neurotransmitters diffuse across ______________________________ and react with ____________________ that form structures called _______________ in or on the______________________ neuron membrane. 2. Some neurotransmitters cause ion channels to _________________________ , some cause ion c ...
... 1. Released neurotransmitters diffuse across ______________________________ and react with ____________________ that form structures called _______________ in or on the______________________ neuron membrane. 2. Some neurotransmitters cause ion channels to _________________________ , some cause ion c ...
4Central Nervous System (CNS)
... modulates mood, and plays a central role in positive reinforcement and dependency ...
... modulates mood, and plays a central role in positive reinforcement and dependency ...
neurons
... ANS that arouses the body, mobilizing its energy in stressful situations. Parasympathetic Nervous System: Division of the ANS that calms the body, conserving its ...
... ANS that arouses the body, mobilizing its energy in stressful situations. Parasympathetic Nervous System: Division of the ANS that calms the body, conserving its ...
Careful Coordination
... – Hormones are carried by the blood past every cell of the body but only “target” cells and organs are able to respond to a specific hormone. – The “target” cells have a receptor (protein that fit the shape of a specific hormone molecule) on their membrane (like a lock “target cell receptor” and key ...
... – Hormones are carried by the blood past every cell of the body but only “target” cells and organs are able to respond to a specific hormone. – The “target” cells have a receptor (protein that fit the shape of a specific hormone molecule) on their membrane (like a lock “target cell receptor” and key ...
Biology 3201
... the outside. This is helped by the (-) proteins etc. The “sodium-potassium” pump pulls 2 K+ ions in for 3 Na+ ions sent out. This further creates a charge difference!! ...
... the outside. This is helped by the (-) proteins etc. The “sodium-potassium” pump pulls 2 K+ ions in for 3 Na+ ions sent out. This further creates a charge difference!! ...
Neuroscience - HuskiesScience
... Sodium / Potassium Pump • Once sodium has rushed in, the cell quickly regains its composure (hyperpolarize) • Active process in which sodium is removed from the cell • Sodium is exchanged for potassium • Requires metabolic activity • Returns charge inside cell to -70 mV • Refractory period-neuron ...
... Sodium / Potassium Pump • Once sodium has rushed in, the cell quickly regains its composure (hyperpolarize) • Active process in which sodium is removed from the cell • Sodium is exchanged for potassium • Requires metabolic activity • Returns charge inside cell to -70 mV • Refractory period-neuron ...
The Nervous System
... Convergent circuits = messages from several neurons come together at a single neuron; permits integration of information from several sources Divergent circuits = messages from a single neuron spreads out to several neurons; permits transmission of information from several sources Reverberatin ...
... Convergent circuits = messages from several neurons come together at a single neuron; permits integration of information from several sources Divergent circuits = messages from a single neuron spreads out to several neurons; permits transmission of information from several sources Reverberatin ...
Nervous system (Brain and Plexi)
... 1. The central nervous system (CNS) 2. The peripheral nervous system (PNS) The central nervous system consist of Brain and Spinal Cord, The peripheral nervous system is composed of all nerves outside the central system (Spinal nerves and cranial nerves) The rat have 34 pairs of spinal nerves: 8 c ...
... 1. The central nervous system (CNS) 2. The peripheral nervous system (PNS) The central nervous system consist of Brain and Spinal Cord, The peripheral nervous system is composed of all nerves outside the central system (Spinal nerves and cranial nerves) The rat have 34 pairs of spinal nerves: 8 c ...
Chapter 6 Notes
... iii. MRI (Magnetic Resonance Imaging) 1. Ability to study both activity and brain structure 2. Uses both CAT and PET scanning capabilities iv. fMRI (Functional Magnetic Resonance Imaging) 1. New, can see the blow flow into active areas to determine activity and functionality Section 3 – The Endocrin ...
... iii. MRI (Magnetic Resonance Imaging) 1. Ability to study both activity and brain structure 2. Uses both CAT and PET scanning capabilities iv. fMRI (Functional Magnetic Resonance Imaging) 1. New, can see the blow flow into active areas to determine activity and functionality Section 3 – The Endocrin ...
Communication and Control-The Nervous System chp 25-1
... involuntary processes such as blood pressure, body temperature, heart rate, and involuntary breathing. ...
... involuntary processes such as blood pressure, body temperature, heart rate, and involuntary breathing. ...
Peripheral Nervous System
... • Sensory Neurons afferent; carry impulses to CNS • Interneurons link neurons in the CNS • Motor Neurons carry impulses away from CNS to effectors such as muscles and glands • SUPPORT CELLS Of Nervous System • Schwann Cells: peripheral nervous system— produce myelin sheath • Oligodendrocytes: CNS; m ...
... • Sensory Neurons afferent; carry impulses to CNS • Interneurons link neurons in the CNS • Motor Neurons carry impulses away from CNS to effectors such as muscles and glands • SUPPORT CELLS Of Nervous System • Schwann Cells: peripheral nervous system— produce myelin sheath • Oligodendrocytes: CNS; m ...
Nervous and Endocrine Systems
... consisting of all the nerve cells. It’s broken down into two sections: the central nervous system and the peripheral nervous system. The peripheral nervous system is responsible for gathering information and for transmitting CNS decisions to other body parts. Nerves, electrical cables formed of bund ...
... consisting of all the nerve cells. It’s broken down into two sections: the central nervous system and the peripheral nervous system. The peripheral nervous system is responsible for gathering information and for transmitting CNS decisions to other body parts. Nerves, electrical cables formed of bund ...
THE NERVOUS SYSTEM - Coastal Bend College
... Nerves are a combination of cells Nerves are a group of impulse carrying fibers that connect the brain and spinal cord with other parts of the body Other terms associated with nerves are: ...
... Nerves are a combination of cells Nerves are a group of impulse carrying fibers that connect the brain and spinal cord with other parts of the body Other terms associated with nerves are: ...
Neuroscience and Behavior
... Cell Body: Life support center of the neuron. Dendrites: Branching extensions at the cell body. Receive messages from other neurons. Axon: Long single extension of a neuron, covered with myelin [MY-uh-lin] sheath to insulate and speed up messages through neurons. Terminal Branches of axon: Branched ...
... Cell Body: Life support center of the neuron. Dendrites: Branching extensions at the cell body. Receive messages from other neurons. Axon: Long single extension of a neuron, covered with myelin [MY-uh-lin] sheath to insulate and speed up messages through neurons. Terminal Branches of axon: Branched ...
Organization of the Nervous system. Physiology of neurons and glial
... - produce & conduct electrical impulses - release chemical regulators ...
... - produce & conduct electrical impulses - release chemical regulators ...
Nervous_System_PowerPoint
... Multiply and divide in the mature nervous system Smaller than neurons but 5-50 times more numerous ...
... Multiply and divide in the mature nervous system Smaller than neurons but 5-50 times more numerous ...
Central Nervous System
... • The net effect, since there are more Na+ ions outside than K+ ions inside, the cell membrane has a strong positive charge outside. The difference from the inside to the outside is -70 mV, or the resting potential. ...
... • The net effect, since there are more Na+ ions outside than K+ ions inside, the cell membrane has a strong positive charge outside. The difference from the inside to the outside is -70 mV, or the resting potential. ...
The Body and the Brain
... parts of the brain could change behavior. An EEG – or electroencephalogram – is a device that records the electrical activity of the brain. Electrodes attached to the skull pick up on the electrical charges – called brain waves – and patterns of these waves can be associated with sleep, thought, and ...
... parts of the brain could change behavior. An EEG – or electroencephalogram – is a device that records the electrical activity of the brain. Electrodes attached to the skull pick up on the electrical charges – called brain waves – and patterns of these waves can be associated with sleep, thought, and ...
Fundamentals of Nervous System and Nervous Tissue
... A neuron has a cell body. Many smaller branched appendages are called Dendrites. Dendrites bring in information (nerve impulse) to the cell body. A single longer appendage is called Axon. It takes information away from cell body. It branches at the end into terminal knobs. A terminal knob secretes a ...
... A neuron has a cell body. Many smaller branched appendages are called Dendrites. Dendrites bring in information (nerve impulse) to the cell body. A single longer appendage is called Axon. It takes information away from cell body. It branches at the end into terminal knobs. A terminal knob secretes a ...
Chapter 2 Powerpoint - Destiny High School
... • WE TALK OF THE BRAIN AND THE SPINAL CORD AS 2 DISTINCT STRUCTURES, BUT IN FACT, THERE IS NO CLEAR BOUNDARY BETWEEN THEM ...
... • WE TALK OF THE BRAIN AND THE SPINAL CORD AS 2 DISTINCT STRUCTURES, BUT IN FACT, THERE IS NO CLEAR BOUNDARY BETWEEN THEM ...
Neurotoxin
Neurotoxins are substances that are poisonous or destructive to nerve tissue. Neurotoxins are an extensive class of exogenous chemical neurological insults that can adversely affect function in both developing and mature nervous tissue. The term can also be used to classify endogenous compounds, which, when abnormally contact, can prove neurologically toxic. Though neurotoxins are often neurologically destructive, their ability to specifically target neural components is important in the study of nervous systems. Common examples of neurotoxins include lead, ethanol (drinking alcohol), Manganese glutamate, nitric oxide (NO), botulinum toxin (e.g. Botox), tetanus toxin, and tetrodotoxin. Some substances such as nitric oxide and glutamate are in fact essential for proper function of the body and only exert neurotoxic effects at excessive concentrations.Neurotoxins inhibit neuron control over ion concentrations across the cell membrane, or communication between neurons across a synapse. Local pathology of neurotoxin exposure often includes neuron excitotoxicity or apoptosis but can also include glial cell damage. Macroscopic manifestations of neurotoxin exposure can include widespread central nervous system damage such as intellectual disability, persistent memory impairments, epilepsy, and dementia. Additionally, neurotoxin-mediated peripheral nervous system damage such as neuropathy or myopathy is common. Support has been shown for a number of treatments aimed at attenuating neurotoxin-mediated injury, such as antioxidant, and antitoxin administration.