Name: Period:______ EXTERNAL ANATOMY OF THE CRAYFISH
... 13. Locate the SWIMMERETS (appendages attached to each segment of the abdomen). Are the swimmerets jointed? ____ How many pairs of swimmerets are there? ___ 14. The last segment of the abdomen (7th segment) is called the telson, and it is specialized for swimming. Locate the two UROPODS (on the outs ...
... 13. Locate the SWIMMERETS (appendages attached to each segment of the abdomen). Are the swimmerets jointed? ____ How many pairs of swimmerets are there? ___ 14. The last segment of the abdomen (7th segment) is called the telson, and it is specialized for swimming. Locate the two UROPODS (on the outs ...
Nervous System Test Review After you accidentally touch a hot pan
... 12. What is the most common cause for spinal cord injuries? a. Car crashes 13. In some reflex actions, skeletal muscles contract without the involvement of the ____________. a. Brain 14. When you feel thirsty, what body process is the nervous system helping to carry out? a. Maintaining Homeostasis ...
... 12. What is the most common cause for spinal cord injuries? a. Car crashes 13. In some reflex actions, skeletal muscles contract without the involvement of the ____________. a. Brain 14. When you feel thirsty, what body process is the nervous system helping to carry out? a. Maintaining Homeostasis ...
Chapter 28: Nervous System
... Extension that transmits signals away from the cell body to another neuron or effector cell. Usually Axon ...
... Extension that transmits signals away from the cell body to another neuron or effector cell. Usually Axon ...
I. Introduction to class
... Extension that transmits signals away from the cell body to another neuron or effector cell. Usually Axon ...
... Extension that transmits signals away from the cell body to another neuron or effector cell. Usually Axon ...
Open Document - Clinton Community College
... Components of neuron (continued) ◦ C.) Axon- Long thin fiber that transmits signals from cell body to other neurons. ◦ D.) Myelin Sheath- Insulating material that coats an axon. Speeds up transmission Problems if it degrades ...
... Components of neuron (continued) ◦ C.) Axon- Long thin fiber that transmits signals from cell body to other neurons. ◦ D.) Myelin Sheath- Insulating material that coats an axon. Speeds up transmission Problems if it degrades ...
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 ...
List of vocabulary used in understanding the nervous
... An individual becomes aware of the environment through the sense organs and other body receptors (e.g., by allowing for touch, taste, and smell and by collecting information about temperature, light, and sound). The body reflexively responds to external stimuli through a reflex arc. A reflex arc is ...
... An individual becomes aware of the environment through the sense organs and other body receptors (e.g., by allowing for touch, taste, and smell and by collecting information about temperature, light, and sound). The body reflexively responds to external stimuli through a reflex arc. A reflex arc is ...
Neuro 16 Neurotransmitters Student
... and putamen project to substantia nigra and globus pallidus. Reduced concentrations in patients with Huntington’s chorea: ...
... and putamen project to substantia nigra and globus pallidus. Reduced concentrations in patients with Huntington’s chorea: ...
Chapter 2 - Biological Basis of Behavior
... Motor Neuron: carry messages from the CNS to muscles and glands Interneuron: part of the intermediate network between sensory, motor, and other interneurons. Mirror Neurons*: a neuron that responds when an individual observes another performing a motor action or experiencing a sensation, has implica ...
... Motor Neuron: carry messages from the CNS to muscles and glands Interneuron: part of the intermediate network between sensory, motor, and other interneurons. Mirror Neurons*: a neuron that responds when an individual observes another performing a motor action or experiencing a sensation, has implica ...
neurons and the nervous system
... Receive messages from other neurons and send them to the cell body Cell Body or Soma The control center of the neuron. Function: Directs impulses from the dendrites to the axon. Nucleus Control center of the Soma. Function: Tells the soma what to do. ...
... Receive messages from other neurons and send them to the cell body Cell Body or Soma The control center of the neuron. Function: Directs impulses from the dendrites to the axon. Nucleus Control center of the Soma. Function: Tells the soma what to do. ...
Navigating The Nervous System
... each: a. Cerebrum- controls all thinking, reasoning, memory functions, and voluntary muscle control. The left half of the cerebrum generally does the analytical work (math), and the right half does the creative thinking. b. Cerebellum- controls the balance and movement of the body, using information ...
... each: a. Cerebrum- controls all thinking, reasoning, memory functions, and voluntary muscle control. The left half of the cerebrum generally does the analytical work (math), and the right half does the creative thinking. b. Cerebellum- controls the balance and movement of the body, using information ...
The Nervous System
... other neurons, pain receptors, light excites receptors in the eye, etc. 2. Once the neuron is stimulated the “sodium gates” of the neuron open and sodium ions begin flowing across the cell membrane. This is called Depolarization: a decrease in membrane potential (inside less negative) increases the ...
... other neurons, pain receptors, light excites receptors in the eye, etc. 2. Once the neuron is stimulated the “sodium gates” of the neuron open and sodium ions begin flowing across the cell membrane. This is called Depolarization: a decrease in membrane potential (inside less negative) increases the ...
Note: This hypothesis is mainly concerned with peripheral neurons
... activation of the kinase domain, leading to activation of three potential signaling cascades: ...
... activation of the kinase domain, leading to activation of three potential signaling cascades: ...
PCL - mmc7
... Lower motor neurons: these carry nerve impulses from the spinal cord (or brainstem for cranial nerves) to the muscle Decussation: the crossing over of upper motor neurons Suppose that left-sided facial weakness arises. Where could this pathology be? 1. Left side lower-motor neuron 2. Right side uppe ...
... Lower motor neurons: these carry nerve impulses from the spinal cord (or brainstem for cranial nerves) to the muscle Decussation: the crossing over of upper motor neurons Suppose that left-sided facial weakness arises. Where could this pathology be? 1. Left side lower-motor neuron 2. Right side uppe ...
The Nervous System
... fibers—one dendrite and one axon • Unipolar: single fiber from the cell body which splits into dendrite and axon • Multipolar: many dendrites; one axon ...
... fibers—one dendrite and one axon • Unipolar: single fiber from the cell body which splits into dendrite and axon • Multipolar: many dendrites; one axon ...
Neurons
... How does this happen? The arrival of an action potential at an axon’s terminal triggers the release of NEUROTRANSMITTERS- chemicals that transmit information from one neuron to another Collected together in little sacks called SYNAPTIC VESICLES Vesicles fuse together with the membrane and sp ...
... How does this happen? The arrival of an action potential at an axon’s terminal triggers the release of NEUROTRANSMITTERS- chemicals that transmit information from one neuron to another Collected together in little sacks called SYNAPTIC VESICLES Vesicles fuse together with the membrane and sp ...
Unit 3A: Neural Processing and the Endocrine System Introduction
... we do because of (1) our bodies, (2) our minds or thinking, and (3) the culture that we live in. Neurons 1. Neurons are nerve cells. There are a few types to know… 1. Sensory neurons – Take messages from the body, up the spinal cord, to the brain. There are millions of these. 2. Motor neurons – Take ...
... we do because of (1) our bodies, (2) our minds or thinking, and (3) the culture that we live in. Neurons 1. Neurons are nerve cells. There are a few types to know… 1. Sensory neurons – Take messages from the body, up the spinal cord, to the brain. There are millions of these. 2. Motor neurons – Take ...
Motor control
... • It seems to be the case that we develop our motor plans in reverse order of the motions necessary to achieve a goal. In other words, our motor planning is goal based rather than direction based. • This would seem to imply that different parts of the system may be planning different movements ...
... • It seems to be the case that we develop our motor plans in reverse order of the motions necessary to achieve a goal. In other words, our motor planning is goal based rather than direction based. • This would seem to imply that different parts of the system may be planning different movements ...
Neurons, Synapses, and Signaling
... Sensory receptors collect information about the world outside the body as well as processes inside the body. Ex. The rods and cones of the eye; pressure receptors in the skin. Sensory neurons transmit information from the eyes and other sensors that detect stimuli to the brain or spinal cord ...
... Sensory receptors collect information about the world outside the body as well as processes inside the body. Ex. The rods and cones of the eye; pressure receptors in the skin. Sensory neurons transmit information from the eyes and other sensors that detect stimuli to the brain or spinal cord ...
Nervous System - ocw@unimas - Universiti Malaysia Sarawak
... • E.g. causes the pupil to constrict and promotes diges
... • E.g. causes the pupil to constrict and promotes diges
Nervous and Endocrine Systems
... A disorder in which nerve cell activity in the brain is disturbed, causing seizures Can be caused by genetics or a brain ...
... A disorder in which nerve cell activity in the brain is disturbed, causing seizures Can be caused by genetics or a brain ...
Cells of the Nervous System
... Some axons are wrapped burrito-style by fatty cells (glial cells) - increases speed at which neurons communicate) - white in color (white matter vs gray matter - is destroyed by multiple sclerosis ...
... Some axons are wrapped burrito-style by fatty cells (glial cells) - increases speed at which neurons communicate) - white in color (white matter vs gray matter - is destroyed by multiple sclerosis ...
Caridoid escape reaction
The caridoid escape reaction, also known as lobstering or tail-flipping, refers to an innate escape mechanism in marine and freshwater crustaceans such as lobsters, krill, shrimp and crayfish.The reaction, most extensively researched in crayfish, allows crustaceans to escape predators through rapid abdominal flexions that produce powerful swimming strokes — thrusting the crustacean backwards through the water and away from danger. The type of response depends on the part of the crustacean stimulated, but this behavior is complex and is regulated both spatially and temporally through the interactions of several neurons.