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The Nervous System Chapter 10.

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Presentation on theme: "The Nervous System Chapter 10."— Presentation transcript:

1 The Nervous System Chapter 10

2 Overview of Structures, Combining Forms, and Functions of the Nervous System

3 Divisions of Nervous 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 (continues)

4 Divisions of Nervous System

5 The Neurons Basic cells of nervous system
Carry nerve impulses throughout body Afferent neurons Connecting neurons Efferent neurons (continues)

6 The Neurons

7 Brain Primary Function Related Word Parts (Combining Forms)
Coordinates all activities of the body by receiving and transmitting messages throughout the body Related Word Parts (Combining Forms) encephal/o

8 Major Parts of the Brain
Cerebrum Thalamus Hypothalamus Cerebellum Brainstem (continues)

9 Major Parts of the Brain

10 Cerebrum Cerebrum – largest and uppermost portion of brain
divided into right and left hemispheres hemispheres subdivided to create pairs of cerebral lobes

11 Cerebral Hemispheres

12 Cerebral Lobes Cerebral lobes
frontal lobe: controls skilled motor functions, memory, behavior pariental lobe: receives and interprets nerve impulses from sensory receptors in tongue, skin, muscles occipital lobe: controls eyesight temporal lobe: controls hearing and smell, and ability to create, store, and access new information

13 Cerebral Lobes

14 Spinal Cord Primary Function Related Word Parts (Combining Forms)
Transmits nerve impulses between the brain, limbs, and lower part of the body Related Word Parts (Combining Forms) myel/o Note: Myel/o also means bone marrow.

15 Nerves Primary Function Related Word Parts (Combining Forms)
Receive and transmit messages to and from all parts of the body Related Word Parts (Combining Forms) neur/i, neur/o

16 Cranial Nerves

17 Peripheral Spinal Nerves

18 Autonomic Nerves System

19 Sensory Organs and Receptors
Primary Functions Receive external stimulation and transmit these stimuli to the sensory neurons Eyes (sight) Ears (hearing) Nose (smell) Skin (touch) Tongue (taste)

20 Key Word Parts and Definitions
caus/o burning, burn cerebr/o cerebrum, brain concuss/o shaken together, violently agitated contus/o bruise (continues)

21 Key Word Parts and Definitions
encephal/o brain -esthesia sensation, feeling esthet/o feeling, nervous sensation, sense of perception -graphy the process of producing a picture or record (continues)

22 Key Word Parts and Definitions
mening/o membranes, meninges myel/o spinal cord, bone marrow neur/i, neur/o nerve, nerve tissue phobia abnormal fear (continues)

23 Key Word Parts and Definitions
psych/o mind radicul/o root or nerve root tropic having an affinity for

24 Click Here to play Parkinson’s Disease animation

25 Questions

26 Question The most sensitive cluster of nerves is at the front of the brain. True or False?

27 Answer False. The most sensitive cluster of nerves is at the base of the spine.

28 Question The human brain is 80%–85% water. True or False?

29 Answer True

30 Question How much of the oxygen used by the human body is utilized by the brain? over 10% over 25% over 50%

31 Answer b. Over 25%

32 Question The human body transmits nerve impulses at about 300 feet a second. True or False?

33 Answer True

34 Answers to Learning Exercises

35 Chapter 10 Answers Matching Word Parts 1 10.1. esthet/o
10.2. encephal/o 10.3. contus/o 10.4. psych/o 10.5. concuss/o Matching Word Parts 2 10.6. mening/o graphy esthesia 10.9. myel/o radicul/o

36 Chapter 10 Answers Matching Word Parts 3 10.11. phobia 10.12. caus/o
cerebr/o neur/o tropic Definitions synapse myelin sheath dendrites pia mater hypothalamus sympathetic plexus peripheral thalamus efferent

37 Chapter 10 Answers Matching Structures 10.26. brainstem
hypothalamus cerebellum medulla oblongata cerebrum Which Word? anesthesiologist coma anxiolytic hallucination acrophobia

38 Chapter 10 Answers Spelling Counts 10.36. migraine 10.37. Alzheimer’s
anesthetic epilepsy sciatica Abbreviation Identification cerebral palsy cerebrospinal fluid obsessive-compulsive disorder post-traumatic stress disorder transient ischemic attack

39 Chapter 10 Answers Term Selection 10.46. delirium 10.47. myelitis
claustrophobia trigeminal neuralgia dyslexia Sentence Completion cerebral contusion anxiety disorders dysthymia factitious antipsychotic

40 Chapter 10 Answers Word Surgery 10.56. an-, esthet, -ic
somn, ambul, -ism electr/o, encephal/o, -graphy par-, -esthesia poli/o, myel, -itis True/False True True False False True

41 Chapter 10 Answers Clinical Conditions 10.66. bipolar
concussion transient ischemic thalamotomy multiple sclerosis insomnia aphasia syncope hydrocephalus hematoma Which Is the Correct Medical Term? causalgia hypnotic conversion epidural amyotrophic lateral sclerosis

42 Chapter 10 Answers Challenge Word Building 10.81. neuromyelitis
meningomalacia neuroma encephalopathy polyneuralgia neuromalacia meningoencephalitis myelopathy encephalomalacia meningoencephalomyelitis Labeling Exercises cerebral frontal temporal parietal occipital thalamus hypothalamus medulla oblongata spinal cerebellum

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