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No Slide Title
No Slide Title

... – slow signals supply the stomach and dilate pupil – fast signals supply skeletal muscles and transport sensory signals for vision and balance ...
Understanding Eye Movements Primary Motor Pathway
Understanding Eye Movements Primary Motor Pathway

... Internuclear: interconnections between nuclei Internuclear: (MLF) ...
Exam 4
Exam 4

... Review guide - Exam 4 In preparation for the upcoming exam, please be familiar with/know the following for Chapter 15 -Compare the structural and functional differences between the somatic and autonomic parts of the nervous system. -Compare the neurons and other anatomical components of the autonomi ...
Chapter 11 The Nervous System
Chapter 11 The Nervous System

... – Two types of nerves emanate from the CNS: spinal and cranial. – Spinal nerves arise from the spinal cord and may be sensory, motor, or mixed. – Cranial nerves attach to the brain and supply the structures of the head and several key body parts. ...
The Nervous System
The Nervous System

...  Answer the following question on the white piece of paper at your desk…  What role do the senses play in the nervous system? ...
Outline 11: Nemertea
Outline 11: Nemertea

... Ocelli a) b) c) d) ...
NEUROBIOLOGICAL BASIS OF BEHAVIOR
NEUROBIOLOGICAL BASIS OF BEHAVIOR

... – Gamma Aminobutyric Acid (GABA) functions as an inhibitory neurotransmitter (“brain calmer”) • Neuropeptides: endorphins and enkephlins, modulate pain and reduce peristalsis. Also called “natural or endogenous opiates” ...
Learning objectives Diencephalon
Learning objectives Diencephalon

...  Thalamic syndrome: Abnormal voluntary movements (chorea or hemiballismus) with hemisensory disturbance  Thalamic hand; The contralateral hand is held in an abnormal posture in some patients ...
Parieto-prefrontal pathway
Parieto-prefrontal pathway

... •When navigating through a new environment, as the parieto-medialtemporal pathway perceives the new spatial information, the hippocampus is most likely creating memories about this environment to form a new cognitive map. •Already existing cognitive maps allow us to navigate through familiar environ ...
The Nervous System
The Nervous System

... system are called neurons Sensory neurons carry information (impulses) from the sense organs to the central nervous system (CNS). Motor neurons carry information (impulses) from the central nervous system (CNS) to the muscles and glands. Interneurons, found in the CNS, connect the two. ...
Chapter 9 THE BODY AND ITS MOVEMENT
Chapter 9 THE BODY AND ITS MOVEMENT

... such as cockroaches also have exoskeleton . The snail has a thick structure called a foot . It is made up of strong muscles . It produces a series of wave like movements that push the snails body forward . 3) The skeleton of a human body is inside the body. Such an skeleton is known as endoskeleton ...
Cornell Notes: Body Systems - CGW-Life-Science
Cornell Notes: Body Systems - CGW-Life-Science

... Organs: tissue working together with a common purpose Examples: heart, brain, lungs, “guts”, eyes, ears, skin Organ Systems: organs working together with a common purpose Eleven Organ Systems in the human body 1. Nervous System- controls body functions, detects information from the environment. 2. R ...
muscle strength testing gradation chart
muscle strength testing gradation chart

... 3. Herniations at lumbar disk levels do not usually affect the nerve exiting directly at that level because of the angle and position of exit of these nerves as they exit directly beneath the pedicle they essentially escape injury by the HNP. The nerve level that is usually affected is one level low ...
Neuron Powerpoint
Neuron Powerpoint

... top-down processing • Information processing guided by higher-level mental processes, as when we construct perceptions drawing on our experience and expectations ...
CHAPTER 35 Human Body Systems: The levels of organization in
CHAPTER 35 Human Body Systems: The levels of organization in

... Just as the thermostat maintains homeostasis within your home, even on the coldest of days, your organ systems work together to keep your body a controlled, stable environment. From blood clotting to seal a cut, you breathing deeply when you climb a hill, or maintaining your body temperature, organ ...
The Nervous System
The Nervous System

... A reflex produces a very fast motor response to a stimulus because the sensory neuron bringing information about the threat passes the information directly to the motor neuron. ...
PSYCH 2 StudyGuide
PSYCH 2 StudyGuide

... 10- What are the characteristics of insomnia, narcolepsy, sleep apnea, night terrors and sleepwalking: INSOMNIA is the inability to sleep or difficulty falling or staying asleep. NARCOLEPSY is a sleep disorder characterized by uncontrollable sleep attacks that takes them directly into REM sleep. SLE ...
Outline10 Action Potl
Outline10 Action Potl

... - voltage-gated K+ channels remain open, high K+ permeability results in hyperpolarization - resting states of channels and resting potential restored at the end of undershoot phase Properties of action potentials 1. threshold - stimulus must be greater than a certain strength to evoke an AP 2. "all ...
Motor Systems - University of Sunderland
Motor Systems - University of Sunderland

... cells in mammals that contain myosin and actin (elastic). These are excitable cells like neurons. • In higher vertebrates, each fiber is innervated by a single motoneuron, but a single motoneuron can innervate many fibers of a single type. Fine motor skills can involve one fiber/one neuron, though m ...
2nd 9 weeks
2nd 9 weeks

... I can differentiate visceral, cardiac, and skeletal muscle tissues based on their structure and physiological role in the movement of body parts and/or substances through body parts. I can explain and model, using appropriate terminology, the anatomy of a skeletal muscle and a muscle fiber, and rela ...
슬라이드 1
슬라이드 1

...  The Peripheral Nervous System  Nervous system outside of the brain and spinal cord  Somatic PNS  Innervates skin, joints, muscles that are under voluntary control ...
Peripheral nervous system
Peripheral nervous system

...  Nervous system & its function  Classification of nervous system  Brain Parts of the brain & the function of each part  Spinal cord & spinal nerves  Meninges & cerebrospinal fluid  Peripheral nervous system Components of PNS Functional classification of PNS  Neurons Structure of neurons Clas ...
Peripheral Nervous System (PNS)
Peripheral Nervous System (PNS)

... i. Occurs when sensory receptors are subjected to an unchanging stimulus 1) Receptor membranes become less responsive 2) Receptor potentials decline in frequency or stop 3) Effect strong in pressure, touch, & smell receptors C. Structure of a Nerve 1. Nerve - cordlike organ of the PNS consisting of ...
Autonomic Nervous System
Autonomic Nervous System

... Element of the Nervous System  Each nerve is a bundle of neurons (sends electrical messages to the body’s organs and muscles). ...
Navigating The Nervous System
Navigating The Nervous System

... a. Central Nervous System- Composed of the brain and spinal cord b. Peripheral Nervous System- All motor and sensory neurons leaving the spinal cord. Functions to connect all body’s organs and muscles to the central nervous system. This way all organs and muscles can be controlled by the brain. ...
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Neuroscience in space



Space neuroscience is the scientific study of the central nervous system (CNS) functions during spaceflight. Living systems can integrate the inputs from the senses to navigate in their environment and to coordinate posture, locomotion, and eye movements. Gravity has a fundamental role in controlling these functions. In weightlessness during spaceflight, integrating the sensory inputs and coordinating motor responses is harder to do because gravity is no longer sensed during free-fall. For example, the otolith organs of the vestibular system no longer signal head tilt relative to gravity when standing. However, they can still sense head translation during body motion. Ambiguities and changes in how the gravitational input is processed can lead to potential errors in perception, which affects spatial orientation and mental representation. Dysfunctions of the vestibular system are common during and immediately after spaceflight, such as space motion sickness in orbit and balance disorders after return to Earth.Adaptation to weightlessness involves not just the Sensory-motor coupling functions, but some autonomic nervous system functions as well. Sleep disorders and orthostatic intolerance are also common during and after spaceflight. There is no hydrostatic pressure in a weightless environment. As a result, the redistribution of body fluids toward the upper body causes a decrease in leg volume, which may affect muscle viscosity and compliance. An increase in intracranial pressure may also be responsible for a decrease in near visual acuity. In addition, muscle mass and strength both decrease as a result of the reduced loading in weightlessness. Moreover, approximately 70% of astronauts experience space motion sickness to some degree during the first days. The drugs commonly used to combat motion sickness, such as scopolamine and promethazine, have soporific effects. These factors can lead to chronic fatigue. The challenge of integrative space medicine and physiology is to investigate the adaptation of the human body to spaceflight as a whole, and not just as the sum of body parts because all body functions are connected and interact with each other.
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