chapt10answers
... external ear: The external ear consists of the _auricle____ which collects the sound with then travels down the __external auditory meatus____ towards the middle ear. middle ear: The middle ear begins with the eardrum called the __tympanic membrane___, and is an air-filled space (tympanic cavity) ho ...
... external ear: The external ear consists of the _auricle____ which collects the sound with then travels down the __external auditory meatus____ towards the middle ear. middle ear: The middle ear begins with the eardrum called the __tympanic membrane___, and is an air-filled space (tympanic cavity) ho ...
Slide ()
... A. The morphology of peripheral somatic sensory receptors on hairy skin (left) and hairless, or glabrous, skin (right). B. The muscle spindle organ (top inset) is a stretch receptor located within the muscle. It receives an efferent innervation from the spinal cord that maintains receptor sensitivit ...
... A. The morphology of peripheral somatic sensory receptors on hairy skin (left) and hairless, or glabrous, skin (right). B. The muscle spindle organ (top inset) is a stretch receptor located within the muscle. It receives an efferent innervation from the spinal cord that maintains receptor sensitivit ...
Neurons and Neurotransmitters
... Action Potential: neural impulse; a brief electrical charge that travels down an axon ...
... Action Potential: neural impulse; a brief electrical charge that travels down an axon ...
Neurons and the Brain
... Neurons stay at rest with their sodium ions on the outside of the cell body (or soma) and potassium ions on the inside. The Neuron isn’t ...
... Neurons stay at rest with their sodium ions on the outside of the cell body (or soma) and potassium ions on the inside. The Neuron isn’t ...
Motor neuron
... Small changes that make a neuron more or less likely to fire (i.e., change the threshold) Depolarization = more sensitive Hyperpolarization = less sensitive ...
... Small changes that make a neuron more or less likely to fire (i.e., change the threshold) Depolarization = more sensitive Hyperpolarization = less sensitive ...
AP Ch. 9 Nervous System Part 1 Worksheets
... 1. The skeletal muscles are controlled by the _______________________________nervous system. 2. The smooth muscles and glands are controlled by the __________________________ nervous system. 3. Neurons are composed of a network of fine threads called _________________________________ 4. The nervous ...
... 1. The skeletal muscles are controlled by the _______________________________nervous system. 2. The smooth muscles and glands are controlled by the __________________________ nervous system. 3. Neurons are composed of a network of fine threads called _________________________________ 4. The nervous ...
Nervous Tissue - Northland Community & Technical College
... consists of cranial and spinal nerves that contain both sensory and motor fibers connects CNS to muscles, glands & all sensory ...
... consists of cranial and spinal nerves that contain both sensory and motor fibers connects CNS to muscles, glands & all sensory ...
histology of nervous tissue
... Cell body or perikaryon - contains the nucleus – regulates the functioning of the neuron. ...
... Cell body or perikaryon - contains the nucleus – regulates the functioning of the neuron. ...
Unit 8 - Perry Local Schools
... Refractory period (brief): even with adequate stimulus, cell cannot be activated ...
... Refractory period (brief): even with adequate stimulus, cell cannot be activated ...
Psychology Lecture 02 - Biological Basis
... Taste Buds: Small organs made up of several components that allow us to perceive taste. ◦ Over 10,000 total, mostly on the tongue. ◦ Can be located on the papillae. ...
... Taste Buds: Small organs made up of several components that allow us to perceive taste. ◦ Over 10,000 total, mostly on the tongue. ◦ Can be located on the papillae. ...
Unit 4 Sensation
... Taste is the Gustatory Sense. Taste is a CHEMICAL SENSE and consists of the four basic tastes of sweet, sour, bitter, & salty. There may also be a 5th sense called "umami" or a meaty taste. Each bump on the tongue contains over 200 taste buds. Each bud contains a pore that captures food molecules. T ...
... Taste is the Gustatory Sense. Taste is a CHEMICAL SENSE and consists of the four basic tastes of sweet, sour, bitter, & salty. There may also be a 5th sense called "umami" or a meaty taste. Each bump on the tongue contains over 200 taste buds. Each bud contains a pore that captures food molecules. T ...
The Nervous System
... ensues, depolarizing the cell and causing the VM to increase. This is the rising phase of an AP. • Eventually, the Na+ channel will have inactivated and the K+ channels will be open. Now, K+ effluxes and repolarization occurs. This is the falling phase. – K+ channels are slow to open and slow to clo ...
... ensues, depolarizing the cell and causing the VM to increase. This is the rising phase of an AP. • Eventually, the Na+ channel will have inactivated and the K+ channels will be open. Now, K+ effluxes and repolarization occurs. This is the falling phase. – K+ channels are slow to open and slow to clo ...
Summary Sodium pump.
... another cell is called a synapse. Messages travel within the neuron as an electrical action potential. The space between two cells is known as the synaptic cleft . To cross the synaptic cleft requires the actions of neuro transmitters. Neurotransmitters are stored in small synaptic vessicles cluster ...
... another cell is called a synapse. Messages travel within the neuron as an electrical action potential. The space between two cells is known as the synaptic cleft . To cross the synaptic cleft requires the actions of neuro transmitters. Neurotransmitters are stored in small synaptic vessicles cluster ...
Presentazione di PowerPoint
... Neuronal glutamate (Glu) is synthesized de novo from glucose (not shown) and from glutamine (Gln) supplied by glial cells. Glutamate is then packaged into synaptic vesicles by vesicular glutamate transporters (vGluTs). SNARE complex proteins mediate the interaction and fusion of vesicles with the pr ...
... Neuronal glutamate (Glu) is synthesized de novo from glucose (not shown) and from glutamine (Gln) supplied by glial cells. Glutamate is then packaged into synaptic vesicles by vesicular glutamate transporters (vGluTs). SNARE complex proteins mediate the interaction and fusion of vesicles with the pr ...
Biology 231
... to reduce the amount of light entering autonomic, cranial reflex DIVISIONS OF AUTONOMIC NERVOUS SYSTEM many organs are receive motor innervation from 2 divisions of the ANS one division is usually excitatory, the other inhibitory Sympathetic division – motor neurons that trigger fight-or-flight resp ...
... to reduce the amount of light entering autonomic, cranial reflex DIVISIONS OF AUTONOMIC NERVOUS SYSTEM many organs are receive motor innervation from 2 divisions of the ANS one division is usually excitatory, the other inhibitory Sympathetic division – motor neurons that trigger fight-or-flight resp ...
Lesson 4 Section 9.2 Electrochemical Impulse
... Neurons have a rich supply of positive (+) and negative (-) ions both inside and outside the cell Negative ions are too large to pass through the cell membrane The positive ions do have the ability to diffuse in and out of the cell Potassium ions (K+) are abundant inside and diffuse out through K+ g ...
... Neurons have a rich supply of positive (+) and negative (-) ions both inside and outside the cell Negative ions are too large to pass through the cell membrane The positive ions do have the ability to diffuse in and out of the cell Potassium ions (K+) are abundant inside and diffuse out through K+ g ...
NERVOUS SYSTEM
... • Astrocytes – numerous projections with swollen ends that cling to neurons. Anchoring the neurons to their blood supply • Microglia – phagocytes that dispose of debris such ...
... • Astrocytes – numerous projections with swollen ends that cling to neurons. Anchoring the neurons to their blood supply • Microglia – phagocytes that dispose of debris such ...
nervous system outline PPT
... Autonomic Nervous System Carry impulses from the central nervous system to glands, various involuntary muscles, cardiac muscle, and membranes Stimulates organs, glands and senses by stimulating secretions of substances Divided into sympathetic and parasympathetic divisions ...
... Autonomic Nervous System Carry impulses from the central nervous system to glands, various involuntary muscles, cardiac muscle, and membranes Stimulates organs, glands and senses by stimulating secretions of substances Divided into sympathetic and parasympathetic divisions ...
Nerve tissue for stu..
... C. Myelinated axons in the central nervous system (CNS) – myelin sheath is formed by processes of oligodendrocytes. One inetrnodal segment is formed by one process of oligodendrocyte. One oligodendrocyte can form more internodal segments by its processes. D. Non-myelinated axons in the CNS – axons a ...
... C. Myelinated axons in the central nervous system (CNS) – myelin sheath is formed by processes of oligodendrocytes. One inetrnodal segment is formed by one process of oligodendrocyte. One oligodendrocyte can form more internodal segments by its processes. D. Non-myelinated axons in the CNS – axons a ...
Stimulus (physiology)
In physiology, a stimulus (plural stimuli) is a detectable change in the internal or external environment. The ability of an organism or organ to respond to external stimuli is called sensitivity. When a stimulus is applied to a sensory receptor, it normally elicits or influences a reflex via stimulus transduction. These sensory receptors can receive information from outside the body, as in touch receptors found in the skin or light receptors in the eye, as well as from inside the body, as in chemoreceptors and mechanorceptors. An internal stimulus is often the first component of a homeostatic control system. External stimuli are capable of producing systemic responses throughout the body, as in the fight-or-flight response. In order for a stimulus to be detected with high probability, its level must exceed the absolute threshold; if a signal does reach threshold, the information is transmitted to the central nervous system (CNS), where it is integrated and a decision on how to react is made. Although stimuli commonly cause the body to respond, it is the CNS that finally determines whether a signal causes a reaction or not.