TEST Flashcards
Comprehensive Definition of Brain
The organ that exerts control over behavior and needs ongoing sensory stimulation and motor production to maintain its intelligent activity.
Definition of Behavior
Patterns in Time
Afferent is what kind of info?
Incoming
Efferent is what kind of info?
Outgoing
The important features of the meninges are-
- 3 layers
-encase brain and spinal cord
-protective covering
The four lobes of the brain are -
Frontal, Parietal, Temporal, Occipital
What are the functions of the Frontal Lobe?
Decision Making, Voluntary Movement
What are the functions of the parietal lobe?
Directing our movements
What are the functions of the temporal lobe?
Hearing, language, musical abilities, facial recognition, emotional processing
What are the functions of the occipital lobe?
Visual scene processing
What are the 3 main subdivisions of the brain?
Cerebrum, brainstem, cerebellum
Features of GRAY matter are -
Neurons, cell bodies, blood vessels, info modification
Features of the Corpus Callosum are -
Band of white matter, joins the two hemispheres and allows them to communicate, runs much length of both hemispheres
Lateral fissure runs -
Left to right
Longitudinal Fissure runs -
Up and down
What are the two types of brain cells?
Neurons, Glia
(Grouping of brain cells)
Layers are -
BANDS of similar CELLS
(Grouping of Brain Cells)
Nuclei are-
CLUSTERS of CELLS
(Grouping of Brain Cells)
Nerves and Tracts are -
BUNDLES of AXONS
Spinal Nerves provide what kind of information?
Motor and Sensory
Features of Diencephalon
Hormones, feeding, sleeping, temperature, SEX, emotional
Features of MidBrain
Sensory info from eyes and ears, produces limb and eye movement, typical behavior, pain
Hindbrain features
Complex movements, stimulates forebrain, bridge from cerebellum, regulates breathing
What subsystems does the PERIPHERAL Nervous System consist of
Somatic, autonomic, enteric
Enteric nervous system controls what
Gut
Somatic nervous system consists of what
Cranial and spinal nerves
Autonomic nervous system consists of
Sympathetic (arousing), parasympathetic (calming)
Central nervous system consists of
Brain and spinal cord
Functions of the autonomic nervous system
Regulates organs and glands
Works without conscious awareness
Uses connections from somatic NS
How many millivolts are resting potential?
-70
Action Potential is -
Large reversal in charge of axon membrane
Does hyperpolarization or depolarization take place during action potential?
DEPOLARIZATION
Sodium ______, Potassium ____
In, Out
Is A- (proteins) more abundant in the intracellular or extra cellular fluid?
Intracellular
Is K+ (potassium) is more abundant in the intra or extracellular fluid?
Intracellular
Na+ (Sodium) is more abundant in the intra or extracellular fluid?
Extracellular
Cl- (Chloride) is more abundant in the intra or extracellular fluid?
Extracellular
