Document
... Figure 4.20 Response of a neuron in the IT cortex for which the person’s head is an important part of the stimulus because firing stops when the head is covered. (From “Recognition of Objects and Their Components Parts: Responses of Single Units in the Temporal Cortex of the Macaque,” by E. Washmut ...
... Figure 4.20 Response of a neuron in the IT cortex for which the person’s head is an important part of the stimulus because firing stops when the head is covered. (From “Recognition of Objects and Their Components Parts: Responses of Single Units in the Temporal Cortex of the Macaque,” by E. Washmut ...
Problems of the Nervous System
... It also stimulates production of saliva and stomach secretions to promote the digestion of food. ...
... It also stimulates production of saliva and stomach secretions to promote the digestion of food. ...
Autonomic Nervous System
... A. The autonomic nervous system (ANS) regulates the activity of smooth muscle, cardiac muscle, and certain glands. B. Operation of the ANS to maintain homeostasis, however, depends on a continual flow of sensory afferent input, from receptors in organs, and efferent motor output to the same effector ...
... A. The autonomic nervous system (ANS) regulates the activity of smooth muscle, cardiac muscle, and certain glands. B. Operation of the ANS to maintain homeostasis, however, depends on a continual flow of sensory afferent input, from receptors in organs, and efferent motor output to the same effector ...
Problems of the Nervous System
... It also stimulates production of saliva and stomach secretions to promote the digestion of food. ...
... It also stimulates production of saliva and stomach secretions to promote the digestion of food. ...
The vestibular stimulus is provided by Earth`s
... d. Cochlear duct - contains Organ of Corti 1. Tectorial membrane (top) 2. Basilar membrane (bottom) 3. Hair cells ...
... d. Cochlear duct - contains Organ of Corti 1. Tectorial membrane (top) 2. Basilar membrane (bottom) 3. Hair cells ...
Quiz5-2005
... The head absorbs high frequencies, producing a "sonic shadow," so that the ear opposite the sound source receives less intense ...
... The head absorbs high frequencies, producing a "sonic shadow," so that the ear opposite the sound source receives less intense ...
Chapter 16
... Gustatory Pathway 12. Indicate which cranial nerves conduct taste impulses from separate regions of ...
... Gustatory Pathway 12. Indicate which cranial nerves conduct taste impulses from separate regions of ...
Untitled
... Sensory hair cells and supporting cells form a well-defined planar polarized mosaic along the entire length of the sensory epithelium that lines the cochlea. The highly uniform orientation of the V or W-shaped stereocilia bundles is critical for effective mechanotransduction. Image: Scanning electro ...
... Sensory hair cells and supporting cells form a well-defined planar polarized mosaic along the entire length of the sensory epithelium that lines the cochlea. The highly uniform orientation of the V or W-shaped stereocilia bundles is critical for effective mechanotransduction. Image: Scanning electro ...
Skeletal Muscle Activity
... 1. Influx of calcium triggers the exposure of binding sites on actin. 2. Myosin binds to actin. 3. The power stroke of the cross bridge causes the sliding of thin filaments. 4. Binding of ATP causes cross bridge to disconnect from actin. 5. Hydrolysis of ATP leads to re-energizing and repositioning ...
... 1. Influx of calcium triggers the exposure of binding sites on actin. 2. Myosin binds to actin. 3. The power stroke of the cross bridge causes the sliding of thin filaments. 4. Binding of ATP causes cross bridge to disconnect from actin. 5. Hydrolysis of ATP leads to re-energizing and repositioning ...
Unit Two: Biological Bases of Behavior
... – Antagonist Molecule: inhibits, blocks neurotransmitter ...
... – Antagonist Molecule: inhibits, blocks neurotransmitter ...
Chapter 7 part two
... competitive processing occurs in many of the brain areas sensitive to visual input. Second, the competition is integrated across several areas, such that the neural populations that represent different aspects of a single object interact in a mutually facilitatory fashion. The gain in response to th ...
... competitive processing occurs in many of the brain areas sensitive to visual input. Second, the competition is integrated across several areas, such that the neural populations that represent different aspects of a single object interact in a mutually facilitatory fashion. The gain in response to th ...
The nervous system can be divided into several connected systems
... area. The presynaptic area is at the end of a sending fiber called an axon, which begins outside the boundaries of the picture in a cell body called the soma. Inside the soma are manufacturing chemicals known as enzymes that manufacture chemicals called neurotransmitters. These neurotransmitters pas ...
... area. The presynaptic area is at the end of a sending fiber called an axon, which begins outside the boundaries of the picture in a cell body called the soma. Inside the soma are manufacturing chemicals known as enzymes that manufacture chemicals called neurotransmitters. These neurotransmitters pas ...
The basics of brain communication
... The Neuron: The Basic Unit of Communication Neuron: The basic units of the nervous system; cells that receive, integrate, and transmit information in the nervous system. They operate through electrical impulses, communicate with other neurons through chemical signals, and form neural networks. (page ...
... The Neuron: The Basic Unit of Communication Neuron: The basic units of the nervous system; cells that receive, integrate, and transmit information in the nervous system. They operate through electrical impulses, communicate with other neurons through chemical signals, and form neural networks. (page ...
PSYCH-UNIT-2-0 -NOTES-BIO-INTRO
... 1. The different methods for peering into the human brain 2. What the areas of the brain control 3. The structure of the neuron 4. The action potential 5. The role of neurotransmitters in neural transmission ...
... 1. The different methods for peering into the human brain 2. What the areas of the brain control 3. The structure of the neuron 4. The action potential 5. The role of neurotransmitters in neural transmission ...
Lab #6: Neurophysiology Simulation
... membrane potential is repolarized below threshold, the voltage-gated K+ channels close. Although the resting potential has been restored, the concentration gradients for Na+ and K+ are now different from resting levels, with large amounts of Na+ inside the cell and high amounts of K+ outside the cel ...
... membrane potential is repolarized below threshold, the voltage-gated K+ channels close. Although the resting potential has been restored, the concentration gradients for Na+ and K+ are now different from resting levels, with large amounts of Na+ inside the cell and high amounts of K+ outside the cel ...
PNS Terminology
... – Interneurons that provide input to the local circuit and LMNs – essential for planning, initiating and directing sequences of voluntary movements – extend from the brain to the LMNs via two types of somatic motor pathways • 1. direct motor pathways: nerve impulses for precise voluntary movement – ...
... – Interneurons that provide input to the local circuit and LMNs – essential for planning, initiating and directing sequences of voluntary movements – extend from the brain to the LMNs via two types of somatic motor pathways • 1. direct motor pathways: nerve impulses for precise voluntary movement – ...
Sensation
... Polyesthesia - means sensation of one stimulus as several ones Alloheyria - sensation of stimuli in symmetrical sites on an opposite body part Alloesthesia - sensation of stimuli in the other place Dissociation of sense - phenomenon of fallout of some kind of sensitivity while saving others ...
... Polyesthesia - means sensation of one stimulus as several ones Alloheyria - sensation of stimuli in symmetrical sites on an opposite body part Alloesthesia - sensation of stimuli in the other place Dissociation of sense - phenomenon of fallout of some kind of sensitivity while saving others ...
Brain Development Lecture
... All neural cells develop from precursor cells precursor cells are called neuroblasts they are located next to the neural tube in the ventricular zone Fig. 22.11 the ventricular zone was thought to be lost shortly after birth Q: Why is it important to determine whether the ventricular zone is still ...
... All neural cells develop from precursor cells precursor cells are called neuroblasts they are located next to the neural tube in the ventricular zone Fig. 22.11 the ventricular zone was thought to be lost shortly after birth Q: Why is it important to determine whether the ventricular zone is still ...
The Central Nervous System (outline, introduction)
... activate adjacent cells. To explain how this process works we first need to review a few basics of electricity. Firstly, some molecules need to be net negatively charged (due to an abundance of electrons) and others net positively charged (due to few electrons) and when molecules are dissolved in fl ...
... activate adjacent cells. To explain how this process works we first need to review a few basics of electricity. Firstly, some molecules need to be net negatively charged (due to an abundance of electrons) and others net positively charged (due to few electrons) and when molecules are dissolved in fl ...
Functional Organization of Nervous Tissue
... medial epicondyle of the humerus will produce strong tingling sensations along the forearm and hand. (a) Radial (b) Median (c) Phrenic (d) Femoral (e) Ulnar ...
... medial epicondyle of the humerus will produce strong tingling sensations along the forearm and hand. (a) Radial (b) Median (c) Phrenic (d) Femoral (e) Ulnar ...
The Special Senses Receptors General Properties of Receptors
... • The eye must collect and re-bend the light to a single point in order to construct an image • Since focal length is fixed, the eye changes the shape of the lens to accomplish this ...
... • The eye must collect and re-bend the light to a single point in order to construct an image • Since focal length is fixed, the eye changes the shape of the lens to accomplish this ...
Bad Fish - Groch Biology
... • The pump moves three sodium (Na+) ions out of the cell for every two potassium (K+) ions that it brings in. • This helps the cell maintain a separation of charges. ...
... • The pump moves three sodium (Na+) ions out of the cell for every two potassium (K+) ions that it brings in. • This helps the cell maintain a separation of charges. ...
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.