12-1 Nervous System Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Brain Nerves Ganglia Peripheral nervous system (PNS) Central nervous system (CNS) Spinal cord Figure 12.1
12-1 Nervous System Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Brain Nerves Ganglia Peripheral nervous.
Jan 02, 2016
Welcome message from author
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
12-1
Nervous SystemCopyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display.
Brain
Nerves
Ganglia
Peripheral nervoussystem (PNS)
Central nervoussystem (CNS)
Spinalcord
Figure 12.1
12-2
Functional Classes of NeuronsCopyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display.
1
2
3
Peripheral nervous system Central nervous system
Sensory (afferent)neurons conductsignals fromreceptors to the CNS.
Motor (efferent)neurons conductsignals from the CNSto effectors such asmuscles and glands.
Interneurons(associationneurons) areconfined tothe CNS.
Figure 12.3
14-3
Embryonic Brain DevelopmentCopyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display.
Diencephalon
Mesencephalon
Telencephalon
Forebrain
Pons
CerebellumMetencephalon
Spinal cord
Hindbrain
Telencephalon
Optic vesicle
Diencephalon
Metencephalon
Myelencephalon
Spinal cord
Rhombencephalon
Mesencephalon
Prosencephalon
(a) 4 weeks (b) 5 weeks
(c) Fully developed
Midbrain
Myelencephalon(medulla oblongata)
Figure 14.4
leaves
Neural groove
Neural fold
(b) 20 days
(d) 26 days
Neural crest
Neuralcrest
Neuraltube
14-4
Brain Ventricles
Figure 14.6 a-b
Lateral ventricles
Fourth ventricle
Third ventricle
(a) Lateral view
Lateral ventricle
Third ventricle
Fourth ventricle
VentriclesVentriclesLateral
Third
Fourth
14-5
Directional Terms and Landmarks
14-6
Brainstem
Cerebellum
Cerebrum
Spinal cord
Rostral Caudal
(b) Lateral view
Gyri and Sulci
Gray Matter and White Matter
14-7
Cerebrum
14-814-8
Cerebrum-Frontal Lobe
14-9
Cerebrum-Parietal Lobe
14-10
Cerebrum-Occipital Lobe
14-11
Cerebrum-Temporal Lobe
14-12
14-13
Sensory and Motor areasCopyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display.
leavesPrecentral gyrus
Anterior Posterior
Auditorycortex
Postcentralgyrus
Primaryvisual cortex
Brocaarea
Figure 14.25
14-14
Limbic System
Basal nuclei
Temporal lobe
Fornix
Hippocampus
Corpuscallosum
Cingulategyrus Thalamic
nuclei
Cerebellum
14-15
Brainstem
14-16
diencephalon
midbrain
pons
medulla oblongata 14-16
Diencephalon
14-17
Thalamus Hypothalamus
Pituitary Gland
14-18
Pineal Gland
14-19
Related Documents
