The Nervous and Endocrine System
This is responsible for gathering information and for transmitting Central Nervous System(CNS) decisions to other body parts
What is the peripheral nervous system?
A neuron’s often bushy, branching extensions that receive and integrate messages, conducting impulses toward the body
What is a dendrite?
The brain’s ability to change, especially during childhood, by reorganizing after damage or building new pathways based on experience
What is neuroplasticity?
The distance from the peak of one wave to the next
What is wavelength
This theory suggest that the spinal cord contains a neurological "gate" that controls the transmission of pain messages to the brain.
What is gate-control theory?
This enables voluntary control of our skeletal muscles
What is the somatic nervous system?
This is generated by the movement of positively charged atoms in and out of channels in the axon’s membrane
What is an action potential?
This area of the brain is used in forming memories and planning. It is shut down during REM sleep.
What is the frontal lobe?
The number of complete wavelengths that pass a point in a given time(for example, per second)
What is frequency?
Area where the optic nerve leaves the eye, can’t see in this spot
What is the blind spot?
This part of the brain directs the pituitary gland to regular growth and control other endocrine glands
What is the hypothalamus?
The sympathetic nervous system releases this neurotransmitter. It helps control alertness and arousal.
What is norepinephrine?
This depicts brain activity by showing each brain area’s consumption of its chemical field, the sugar glucose
What is a PET(positron emission tomogrpahy) scan
Theory that opposing retinal processes enable color vision
What is the opponent-process theory?
In hearing, the theory that links the pitch we hear with the place where the cochlea’s membrane is stimulated
What is place theory(also called place coding)
This growth hormone stimulates physical development, cell reproduction and regeneration.
What is somatropin?
A fatty tissue layer segmentally encasing the axons of some neurons, enables vastly greater transmission speed as neural impulses hop from one node to the next
What is a myelin sheath?
A technique for revealing blood flow, and therefore, brain activity by comparing successive MRI scans
What is a fMRI(functional MRI)?
The principle that one sense can influence another, as when the smell of food influences its taste
What is sensory interaction?
The process by which the eye’s lens changes to focus on near or far objects on the retina
What is accomodation?
This part of the body is responsible for calcium regulation.
What is the parathyroid?
Natural, opiate-like neurotransmitters linked to pain control and to pleasure
What are endorphins?
This part of the brainstem controls heartbeat and breathing.
What is the medulla?
The principle that, to be perrceived as different, two stimuli must differ by a constant minimum percentage.
What is Weber's Law?
Diminished sensitivity as a result of constant stimuli, this enables us to focus on informative changes in our environment.
What is sensory adaptation?