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Lecture 1

EXSC 224 Lecture 1: Lecture 1 - 8/18

by OneClass1080406 , Fall 2016
4 Pages
91 Views
Fall 2016

Department
Exercise Science
Course Code
EXSC 224
Professor
Thompson
Lecture
1

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8/18
4 essential Concepts in Physiology
1. Principle of Complementarity
Physiology is dependent to anatomy
2.Physiology uses gradients
Ex. Sodium potassium pump
Potential energy - physiology harnesses the gradient to do something
Regulate protein function by regulating its shape
Ex. phosphorylation, pH, temperature
4. Negative feedback regulation is essential to homeostasis
Chapter 11
Nervous system - 3 things
1. Sensory input
Information gathered by sensory receptors about internal and external
changes
2. Integration
Travels to CNS to be processed
Interpretation of sensory input
Subconscious or conscious decisions can be made
3. Motor output
Voluntary or involuntary
Activation of effector organs (muscles and glands) produces a response
CNS - brain and spinal cord
Integrative and control centers
PNS - everything else that branches off of brain and spinal cord, cranial and spinal
nerves
Communication lines between the CNS and the rest of the body
PNS - Peripheral nervous system
Sensory (afferent) division
Somatic and visceral sensory nerve fibers
Conducts impulses from receptors to the CNS
Somatic = skin/sensory
Visceral = organ(like stomach)
Motor (efferent) division
Motor nerve fibers
Conducts impulses from the CNS to effectors (muscles and glands)
Away from central nervous system
■ Somatic/voluntary
Somatic motor
Conducts impulses from the CNS to skeletal muscles
Autonomic/involuntary systems
Visceral motor, involuntary
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Description
818 4 essential Concepts in Physiology 1. Principle of Complementarity Physiology is dependent to anatomy 2.Physiology uses gradients Ex. Sodium potassium pump Potential energy physiology harnesses the gradient to do something Regulate protein function by regulating its shape Ex. phosphorylation, pH, temperature 4. Negative feedback regulation is essential to homeostasis Chapter 11 Nervous system 3 things 1. Sensory input Information gathered by sensory receptors about internal and external changes 2. Integration Travels to CNS to be processed Interpretation of sensory input Subconscious or conscious decisions can be made 3. Motor output Voluntary or involuntary Activation of effector organs (muscles and glands) produces a response CNS brain and spinal cord Integrative and control centers PNS everything else that branches off of brain and spinal cord, cranial and spinal nerves Communication lines between the CNS and the rest of the body PNS Peripheral nervous system Sensory (afferent) division Somatic and visceral sensory nerve fibers Conducts impulses from receptors to the CNS Somatic = skinsensory Visceral = organ(like stomach) Motor (efferent) division Motor nerve fibers Conducts impulses from the CNS to effectors (muscles and glands) Away from central nervous system Somaticvoluntary Somatic motor Conducts impulses from the CNS to skeletal muscles Autonomicinvoluntary systems Visceral motor, involuntary
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