The Autonomic Nervous System
... cranialnerves III, VII, IX, and X) and from the sacral region of the spinal cord and synapse in ganglia near or on theeffector organs. Thus, in contrast to the sympathetic system, the preganglionic fibers are long, and thepostganglionic ones are short, with the ganglia close to or within the organ i ...
... cranialnerves III, VII, IX, and X) and from the sacral region of the spinal cord and synapse in ganglia near or on theeffector organs. Thus, in contrast to the sympathetic system, the preganglionic fibers are long, and thepostganglionic ones are short, with the ganglia close to or within the organ i ...
Cranial Nerve I
... • Sensory neuron – transmits the afferent impulse to the CNS • Integration center – either monosynaptic or polysynaptic region within the CNS • Motor neuron – conducts efferent impulses from the integration center to an effector • Effector – muscle fiber or gland that responds to the efferent impuls ...
... • Sensory neuron – transmits the afferent impulse to the CNS • Integration center – either monosynaptic or polysynaptic region within the CNS • Motor neuron – conducts efferent impulses from the integration center to an effector • Effector – muscle fiber or gland that responds to the efferent impuls ...
The autonomic nervous system
... The parasympathetic nervous system (PSNS) is the other divisions of the autonomic nervous system. The parasympathetic system is responsible for stimulation of "rest-and-digest" or "feed and breed” activities that occur when the body is at rest. These occur when the body is at rest, especially after ...
... The parasympathetic nervous system (PSNS) is the other divisions of the autonomic nervous system. The parasympathetic system is responsible for stimulation of "rest-and-digest" or "feed and breed” activities that occur when the body is at rest. These occur when the body is at rest, especially after ...
Chapter 15
... vehicle accident. She was comatose for 4 days but is now alert but not oriented. Pt. has multiple fractures including the: left tibia, left humerus and clavicle. Extensive facial bruising. MRI showed scattered bruising of the cortex and possible brain stem involvement. The neuro exam revealed severe ...
... vehicle accident. She was comatose for 4 days but is now alert but not oriented. Pt. has multiple fractures including the: left tibia, left humerus and clavicle. Extensive facial bruising. MRI showed scattered bruising of the cortex and possible brain stem involvement. The neuro exam revealed severe ...
Ch 10MT and Ch 8-9 BS Nervous System
... Innervation: supply of nerves to body part, stimulation of a body part through action of nerves Receptors: sites in sensory organs that receive external stimulation Send stimulus through the sensory neurons to the brain for interpretation Stimulus: excites or activated nerve causing an impulse ...
... Innervation: supply of nerves to body part, stimulation of a body part through action of nerves Receptors: sites in sensory organs that receive external stimulation Send stimulus through the sensory neurons to the brain for interpretation Stimulus: excites or activated nerve causing an impulse ...
FINAL LECTURE EXAM – HUMAN ANATOMY
... b. Milk in a lactiferous sinus passes through a lactiferous duct before reaching the nipple. c. Lobes of the gland are separated by suspensory ligaments arising from deep fascia. d. Each lobe typically has its own lactiferous duct. e. The primary determinant of breast size is the amount of adipose t ...
... b. Milk in a lactiferous sinus passes through a lactiferous duct before reaching the nipple. c. Lobes of the gland are separated by suspensory ligaments arising from deep fascia. d. Each lobe typically has its own lactiferous duct. e. The primary determinant of breast size is the amount of adipose t ...
the cerebral cortex
... body), area 18, 19, parietal cortex, temporal cortex. Dorsal stream – parietal cortex (where : rods, periphery of retina, area 7) Ventral stream – temporal cortex (whatcolors, form : cones, central area of retina, area 37, inferior. temporal cortex ...
... body), area 18, 19, parietal cortex, temporal cortex. Dorsal stream – parietal cortex (where : rods, periphery of retina, area 7) Ventral stream – temporal cortex (whatcolors, form : cones, central area of retina, area 37, inferior. temporal cortex ...
(with Perception 6
... • Light enters the eye through a transparent window at the front called the cornea. • The iris (the colored part of the eye) regulates the amount of light entering the eye because it controls the size of the pupil. • The pupil (black part of your eye) is the opening that permits light to pass into ...
... • Light enters the eye through a transparent window at the front called the cornea. • The iris (the colored part of the eye) regulates the amount of light entering the eye because it controls the size of the pupil. • The pupil (black part of your eye) is the opening that permits light to pass into ...
Lecture : Spinal Reflexes
... - Notice in Figure 36.3 that the spindles have both sensory and motor innervation. This allows the CNS to alter the nature of incoming sensory information. Please take note of the 3 types of intrafusal fiber, the two types of sensory afferent, and the two types of motor neurons (called gamma to dist ...
... - Notice in Figure 36.3 that the spindles have both sensory and motor innervation. This allows the CNS to alter the nature of incoming sensory information. Please take note of the 3 types of intrafusal fiber, the two types of sensory afferent, and the two types of motor neurons (called gamma to dist ...
Multiscale Approach to Neural Tissue Modeling
... In the talk a multiscale model of neural tissue will be presented. The neural tissue is usually modeled in different areas. In the microscopic approach the tissue is modeled on a cellular or ion channels level. On the macroscopic level the tissue parameters are averaged over large domains representi ...
... In the talk a multiscale model of neural tissue will be presented. The neural tissue is usually modeled in different areas. In the microscopic approach the tissue is modeled on a cellular or ion channels level. On the macroscopic level the tissue parameters are averaged over large domains representi ...
Chapter 33
... The nerve impulse travels along the axon or dendrites as an electrical current gathered by ions moving in and out of the neuron through voltage-gated channels. Voltage-gated channels – protein channels in the membrane that open & close in response to an electrical ...
... The nerve impulse travels along the axon or dendrites as an electrical current gathered by ions moving in and out of the neuron through voltage-gated channels. Voltage-gated channels – protein channels in the membrane that open & close in response to an electrical ...
Document
... Historically, Sherrington (~ 1925) first described the function of the muscle spindle and its role in control of motor function. He used the Bell-Magendie Law to deafferent an animal’s ...
... Historically, Sherrington (~ 1925) first described the function of the muscle spindle and its role in control of motor function. He used the Bell-Magendie Law to deafferent an animal’s ...
SNS—brain and spinal cord
... Four regions: Cerebrum, diencephalons, brain stem, cerebellum. Pg 1470 fig. Tables Each hemisphere: temporal, frontal, pariental and occipital lobes. ~ Corpus collosum—allows communication between the left and right brain. Left hemisphere—controls the right side of body and vise versa. Each hemi ...
... Four regions: Cerebrum, diencephalons, brain stem, cerebellum. Pg 1470 fig. Tables Each hemisphere: temporal, frontal, pariental and occipital lobes. ~ Corpus collosum—allows communication between the left and right brain. Left hemisphere—controls the right side of body and vise versa. Each hemi ...
CHAPTER 14 –NERVOUS SYSTEM OBJECTIVES On completion of
... receptor. Sensory receptors are of different types, ranging from the simplest, which are free nerve endings for pain, to the most complex, as in the retina of the eye for vision. Receptors are generally specialized to specific types of stimulation such as heat, cold, light, pressure, or pain and rea ...
... receptor. Sensory receptors are of different types, ranging from the simplest, which are free nerve endings for pain, to the most complex, as in the retina of the eye for vision. Receptors are generally specialized to specific types of stimulation such as heat, cold, light, pressure, or pain and rea ...
Nervous and Muscular System
... • Muscles are classified as being voluntary or involuntary – Voluntary muscles are those that can be contracted or relaxed at will – Involuntary muscles are regulated by the nervous and endocrine systems ...
... • Muscles are classified as being voluntary or involuntary – Voluntary muscles are those that can be contracted or relaxed at will – Involuntary muscles are regulated by the nervous and endocrine systems ...
TENS – a complement to wound healing
... One study indicates that TENS increases the amount of leucocytes and phagocytes. • Effects on a cellular level The same study indicates that TENS increases protein production. ...
... One study indicates that TENS increases the amount of leucocytes and phagocytes. • Effects on a cellular level The same study indicates that TENS increases protein production. ...
PNS and CNS Nervous System Organization Peripheral Nervous
... • 1rst (preganglionic) has cell body in CNS – synapses with 2nd in the ...
... • 1rst (preganglionic) has cell body in CNS – synapses with 2nd in the ...
Bell`s and Erb`s Palsy
... • The brachial plexus is a network of nerves, conducting signals from the spine to the arm and the hand • Injury can occur at any time, most brachial plexus injuries happen during birth – about 1-2 babies in 1,000 suffer brachial plexus injury at birth, about 1 in 10 of these need treatment – treatm ...
... • The brachial plexus is a network of nerves, conducting signals from the spine to the arm and the hand • Injury can occur at any time, most brachial plexus injuries happen during birth – about 1-2 babies in 1,000 suffer brachial plexus injury at birth, about 1 in 10 of these need treatment – treatm ...
Practice Questions for Neuro Anatomy Lectures 1 and 10 White
... 27. Other extrapyramidal structures or pathways in addition to corticospinal (or pyramidal) system are involved in control of movement, posture, and muscle tone. a. True ...
... 27. Other extrapyramidal structures or pathways in addition to corticospinal (or pyramidal) system are involved in control of movement, posture, and muscle tone. a. True ...
Biology 621 - Chapter 12 Midterm Exam Review
... 28.Motor neurons carry impulses from the spinal cord to the effectors. 29. Within the spinal cord, motor and sensory neurons are connected byinterneurons 30. The 2 divisions of the autonomic nervous system sympathetic ¶sympathetic 31 The above two divisions have a(n) antagonistic effects on the ...
... 28.Motor neurons carry impulses from the spinal cord to the effectors. 29. Within the spinal cord, motor and sensory neurons are connected byinterneurons 30. The 2 divisions of the autonomic nervous system sympathetic ¶sympathetic 31 The above two divisions have a(n) antagonistic effects on the ...
The Nervous System
... It contains only nerves. | It connects the CNS to rest of the body. | It is made up of two subdivisions: the somatic and autonomic. | The two main components are the sensory and motor pathways. ...
... It contains only nerves. | It connects the CNS to rest of the body. | It is made up of two subdivisions: the somatic and autonomic. | The two main components are the sensory and motor pathways. ...
Microneurography
Microneurography is a neurophysiological method employed by scientists to visualize and record the normal traffic of nerve impulses that are conducted in peripheral nerves of waking human subjects. The method has been successfully employed to reveal functional properties of a number of neural systems, e.g. sensory systems related to touch, pain, and muscle sense as well as sympathetic activity controlling the constriction state of blood vessels. To study nerve impulses of an identified neural system, a fine tungsten needle electrode is inserted into the nerve and connected to a high gain recording amplifier. The exact position of the electrode tip within the nerve is then adjusted in minute steps until the electrode discriminates impulses of the neural system of interest. A unique feature and a significant strength of the microneurography method is that subjects are fully awake and able to cooperate in tests requiring mental attention, while impulses in a representative nerve fibre or set of nerve fibres are recorded, e.g. when cutaneous sense organs are stimulated or subjects perform voluntary precision movements.