12 CNS - http/faculty.washington.edu/chudler/moreb.html Ch...

Info iconThis preview shows pages 1–13. Sign up to view the full content.

View Full Document Right Arrow Icon
What are the differences between these brains? http://faculty.washington.edu/chudler/moreb.html Ch 12 The CNS
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Cerebral hemispheres of the brain show the most changes (in red) Become larger More grooves (Sulci) and bumps or ridges (gyri). Particularly deep grooves are called fissures Brain Evolution
Background image of page 2
Site of higher level thinking Made up of four lobes What were the names and locations of the four skull bones? What’s this called? What’s the name of this region Cerebral Cortex (Outer layer of cerebrum)
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Gray and White Matter Microscopically, the CNS contains 2 neural elements: Neuron cell bodies (clusters are known as nuclei ) Nerve fibers (axons) in bundles called tracts . Viewed macroscopically, CNS tissues can be distinguished by color: Gray matter consists of somata, dendrites, and unmyelinated axons. White matter consists primarily of myelinated axons. What is this layer called?
Background image of page 4
Cerebral Cortex Functional Areas 3 types: 1. Motor Control voluntary motor functions 2. Sensory Allow for conscious recognition of stimuli 3. Association Integration
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Primary (somatic) motor cortex- Initiation of voluntary movement Premotor cortex - Involved in learned or patterned skills and planned movements Frontal Eye Field- controls voluntary movement of the eyes Motor Areas Motor Areas Broca’s Area controls muscles involved in speech production
Background image of page 6
Somatotopy of Primary Motor Cortex
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Sensory Areas Found in the parietal, occipital, and temporal lobes . 1. Primary somatosensory cortex- receive info from somatic sensory receptors 2. Somatosensory association cortex – integrate sensory inputs 3. Visual areas – receives visual info from retina of eye 4. Auditory areas – receives sound impulses from inner ear 5. Olfactory cortex – perception of smell 6. Gustatory cortex – perception of taste stimuli 7. Vestibular cortex – concious awareness of balance
Background image of page 8
Prefrontal Cortex Anterior frontal lobes Involved in analysis, cognition, thinking, personality, conscience, What would a frontal lobotomy result in? Look at its evolution
Background image of page 9

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Lateralization The fact that certain activities are the almost exclusive domain of one of the 2 hemispheres. In most people, the left hemisphere has a more control over language, math, and logic. While the right hemisphere is geared towards musical, artistic and other creative endeavors. Most individuals with left cerebral dominance are right-handed.
Background image of page 10
Background image of page 11

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Split Brain Experiments Cutting of Corpus Callosum Interesting Effects! Corpus Callosum
Background image of page 12
Image of page 13
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 02/26/2011 for the course BIO 107 taught by Professor Smith during the Spring '11 term at NE Texas CC.

Page1 / 41

12 CNS - http/faculty.washington.edu/chudler/moreb.html Ch...

This preview shows document pages 1 - 13. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online