Busy. Please wait.

Forgot Password?

Don't have an account?  Sign up 

show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.

By signing up, I agree to StudyStack's Terms of Service and Privacy Policy.

Already a StudyStack user? Log In

Reset Password
Enter the email address associated with your account, and we'll email you a link to reset your password.

Remove ads
Don't know (0)
Know (0)
remaining cards (0)
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
restart all cards

Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

MT 1 Chapter 10

Nersous System

Central nervous system includes brain and spinal cord
Peripheral nervous system includes 12 pairs of cranial nerves and 31 pairs of peripheral spinal nerves
The Neurons Basic cells of nervous system
The Neurons Carry nerve impulses throughout body
The Neurons Afferent neurons, Connecting neurons, Efferent neurons
Brain: Primary Function Coordinates all activities of the body by receiving and transmitting messages throughout the body
Brain MT encephal/o
Major Parts of the Brain Cerebrum, Thalamus, Hypothalamus, Cerebellum,Brainstem
Cerebrum largest and uppermost portion of brain
Cerebrum hemispheres subdivided to create pairs of cerebral lobes
Cerebrum divided into right and left hemispheres
Cerebral Lobes: frontal lobe controls skilled motor functions, memory & behavior
Cerebral Lobes: parietal lobe receives and interprets nerve impulses from sensory receptors in tongue, skin, muscles
Cerebral Lobes: occipital lobe controls eyesight
Cerebral Lobes: temporal lobe controls hearing and smell, and ability to create, store and access new information
Spinal Cord: Primary Function Transmits nerve impulses between the brain, limbs, and lower part of the body
Spinal Cord MT myel/o
Myel/o MT also means bone marrow
Nerves: Primary Function Receive and transmit messages to and from all parts of the body
Nerves neur/i MT
Nerves neur/o MT
caus/o MT burning, burn
cerebr/o MT cerebrum, brain
concuss/o MT shaken together, violently agitated
contus/o MT bruise
Peripheral Nervous System has 12 Pairs Cranial Nerves
Peripheral Nervous System has 31 Pairs of Spinal Nerves
Peripheral Nervous System Transmits sensory and motor impulses back and forth between CNS and rest of body
Basic Structural Unit of the Nervous System is called a Neuron Cells
Cell body Contains the nucleus and cytoplasm
Conducts impulses away from the cell body Axon
Some axons are covered with a myelin sheath
Conducts impulses toward the cell body Dendrite
Connective tissue, Do not conduct impulses, Protect nervous system through phagocytosis Neuroglia
Types of Neuroglia Cells Astrocytes, Microglia, Oligodendrocytes
Types of Neuroglia Cells Microglia
Type of Neuroglia Cells Oligodendrocytes
Type of Neuroglia Cells Astrocytes
Carry impulses from the body to the central nervous system Afferent (sensory) nerves
Cause the target organs to do something in response to commands Efferent (motor) nerves
Carry impulses from the central nervous system to muscles and glands Efferent (motor) nerves
Provides voluntary control over skeletal muscle contractions Somatic Nervous System
Provides involuntary control over smooth muscle, cardiac muscle, and glandular activity and secretions in response to the commands of the central nervous system Autonomic Nervous System
Increase heart rate Sympathetic nerves
Constrict blood vessels Sympathetic nerves
Raise blood pressure Sympathetic nerves
Fight-or-flight response Sympathetic nerves
Slow heart rate Parasympathetic nerves
Increase peristalsis of intestines Parasympathetic nerves
Increase glandular secretions Parasympathetic nerves
Relax sphincters Parasympathetic nerves
Outermost layer of meninges Dura mater
Tough, white connective tissue of meninges Dura mater
Meninges Epidural space located outside of the dura mater Contains supporting cushion of fat and connective tissue
Meninges Subdural space located beneath the dura mater Cavity is filled with serous fluid
Middle layer of the meninges Arachnoid membrane
Resembles a spider web Arachnoid membrane
Subarachnoid space immediately beneath contains cerebrospinal fluid
Innermost layer of the meninges Pia mater
Tightly bound to the surface of the brain and spinal cord Pia mater
Structures of the Brain: Cerebrum Largest and uppermost portion of the brain Controls consciousness, memory, sensations, emotions, voluntary movements
Cortex MT outer surface
Gyri MT elevations
Sulci MT grooves
Longitudinal fissure divides cerebrum into two hemispheres
Attached to the brain stem Cerebellum
Maintains muscle tone Coordinates normal movement and balance Cerebellum
Located between cerebrum and midbrain Diencephalon
thalamus, hypothalamus, and pineal gland Diencephalon Consists of
Brain Stem Consist of Consists of midbrain, pons, and medulla oblongata
Serves as pathway for impulses between brain and spinal cord Brain Stem
Controls respiration, blood pressure, and heart rate Brain Stem
Pathway for impulses traveling to and from brain Spinal Cord
Transmits nerve impulses between the brain, limbs, and lower part of the body Spinal Cord
Central nervous system Organs Brain, Spinal cord
CNS Function Integration; command center, Interpret incoming, sensory information, Issues outgoing instructions
Peripheral nervous system (PNS) Nerves extending from the brain and spinal cord
PNS Functions Serve as communication lines among sensory organs, the brain and spinal cord, and glands or muscles
Sensory Organs and Receptors Primary Functions Receive external stimulation and transmit these stimuli to the sensory neurons
Sensory Organs and Receptors Primary Functions Eyes (sight), Ears (hearing), Nose (smell),Skin (touch), Tongue (taste)
-esthesia MT sensation, feeling
esthet/o MT feeling, nervous sensation, sense of perception
-graphy MT the process of producing a picture or record
mening/o membranes, meninges
phobia abnormal fear
radicul/o root or nerve root
tropic having an affinity for
Alzheimer’s Disease Progressive and extremely debilitating deterioration of a person’s intellectual functioning
Amyotrophic Lateral Sclerosis (ALS)
Amyotrophic Lateral Sclerosis Severe weakening and wasting of the involved muscle groups
Amyotrophic Lateral Sclerosis Usually begins with hands Progresses to shoulders, upper arms, then legs
Bell’s Palsy Temporary or permanent unilateral weakness or paralysis of muscles in the face
Carpal Tunnel Syndrome Pinching or compression of median nerve within the carpal tunnel Inflammation and swelling of tendons cause intermittent or continuous pain
Cerebral Concussion Brief interruption of brain function usually with loss of consciousness lasting for a few seconds
Cerebral Contusion Small, scattered venous hemorrhages in the brain
Cerebral Contusion Bruise of the brain tissue
Cerebral Contusion Occurs when brain strikes the inner skull
Cerebral Palsy Collective term used to describe congenital brain damage that is permanent but not progressive
Cerebral Palsy Characterized by the child’s lack of control of voluntary muscles
Cerebrovascular Accident CVA
Cerebrovascular Accident Death of a specific portion of brain tissue
Cerebrovascular Accident Results from decreased blood flow to that area of the brain
Cerebrovascular Accident stroke
Cerebrovascular Accident Transient ischemic attacks (TIAs)
Transient ischemic attacks (TIAs) Also known as mini strokes
Cerebral thrombosis Occurs largely in individuals older than 50
Embolism causes an occlusion Cerebral embolism
Cerebral hemorrhage Cerebral vessel ruptures
Encephalitis Virus enters CNS when person experiences viral disease such as mumps, measles, or through tick or mosquito bite
Epilepsy Syndrome of recurring episodes of excessive irregular electrical activity of the central nervous system, called seizures
Epilepsy seizures
Grand Mal Seizure Epileptic seizure characterized by sudden loss of consciousness and generalized involuntary muscular contraction
Petit Mal Seizure Small seizures in which there is a sudden, temporary loss of consciousness
Petit Mal Seizure Lasts only a few seconds Also known as absence seizures
Grand Mal Seizure Vacillates between rigid body extension and an alternating contracting and relaxing of muscles
Guillain-Bàrré Syndrome
Guillain-Bàrré Syndrome
Created by: 1815104090