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chapter 8
exam 2
17
Physiology
Undergraduate 1
05/12/2012

Additional Physiology Flashcards

 


 

Cards

Term
Cerebrum
Definition

Largest portion of brain-makes up 80%

Has Right & left sides

Responsible for mental functions

Term

 

Precentral gyrus

Definition

Located in frontal lobe

Motor control

Controls opposite side of body

ex) A stroke on the right side effects the left

Term
Postcentral gyrus
Definition

In parietal lobe

for somatic sensation

Term

Temporal

 

Occipital

 

Insula

Definition

1. Temporal- vision

 

2. Occipital- Auditory (hearing)

 

3. Insula- (deep tissue) for memory, auditory and pain

Term

MRI

 

FMRI

Definition

1.  MRI- shows gray & white matter + CSF

 

2. FMRI- can see part of brain working the most by looking at blood flow

Term
4 EEG waves
Definition

1. Alpha- Active & relaxed.

-in parietal lobe

 

2.  Beta- Visual

-in frontal lobe

 

3. Theta- In sleep

-occipital & temporal

 

4. Delta- In sleep

-all lobes

Term
Brocas Area
Definition

In left inferior frontal gyrus

Slow, poorly articulated speech

Motor aspect

Only speech is affected-can understand normally

Term
Wernicke's area
Definition

left superior temporal gyrus

Speech with no meaning

A person who has this can't understand

Term
Speech
Definition

Speech originated in Wernicke's area and is sent to Broca's

 

Broca's area sends words to motor cortex for movement of approipriate muscles

Term

Short term memory

 

Long term memory

Definition

Short- recent events sent to long term with memory consolidation

 

Long- Must use over and over to have long term

Term
The Limbic System
Definition

Conrols all emotions

 

There are few synaptic connections between the limbic system and cerebral cortex.

-this is why its hard to control emotions

Term
parts of the midbrain
Definition

AKA- mesencephalon

 

1. Superior Colliculi- vision

2.  Inferior Culliculi- Aduitory

3.  Cerebral penduncles (no description in notes)

4. Red Nucleus- motor

5.  Substantia Nigra- Motor

Term
Hindbrain
Definition

AKA- Rhombencenphalon

 

-made of metencephalon and myelencephalon

Term
Metencephalon
Definition

-made of pons and cerbellum

 

-sensory motor to/from the spine

 

Apneustic & Pneumotaxic respitory control centers are here

Term
myelencephalon
Definition

-made of medulla oblangata

 

-Ascending & descending tracts pass through medulla

 

 

Term
Medulla oblangata
Definition
-regulation of breathing & cardiovascualr system
Term
White matter of the spinal cord is composed of what?
Definition

1. Asscending tracts- sensory crossover info. 

 

 

2. descending tracts-

a. Corticopinal

or

 b. pyramidal

 

-descend directly to spinal cord from cerebral cortex

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