Unit 3a Flashcards
A branch of psychology concerned with the links between psychology and behavior
Biological psychology
A nerve cell; the basic building block of the nervous system
Neuron
Neurons that carry incoming information from the sensory receptors to the brain and spinal cord
Sensory neurons
Neurons that carry outgoing information for the brain and spinal cord to the muscles and glands
Motor neurons
Bushy branching extensions of a neuron that receive messages and conduct impulses towards the body
Dendrite
Neurons within the brain and spinal cord to communicate internally and intervene between the sensory inputs and motor outlets
Interneurons
The extension of a neuron ending in branching terminal fibers three which messages pass to other neurons or to other muscles or glands
Axon
The layer of fatty tissue segmental he encasing the fibers of many neurons; enables vastly greater transmission speed’s of neural impulses as the impulse hops from one node to the next
Myelin sheath
The level of stimulation required to trigger a neural impulse
Threshold
Chemical messages the cross the synaptic gap’s between neurons. When released by the sending neuron, neurotransmitters travel across the synapse and bind two receptor sites on the receiving neuron, thereby influencing whether that neuron will generate a neural impulse
Neurotransmitters
Euro transmitters reabsorption by the sending neuron
Reuptake
A natural opoatike neurotransmitters linked to pain control and pleasure
Endorphins
The bodies speedy electrochemical communication network, consisting of all the nerve cells of the peripheral and central nervous system’s
Nervous system
The brain and spinal cord
Central nervous system
Sensory and motor neurons that connect the central nervous system to the rest of the body
Peripheral nervous system
Bundled axons that for neural cables connecting the central nervous system with muscles glands and sense organs
Nerves
The division of the peripheral nervous system that controls the body skeletal muscles also called the skeletal nervous system
Somatic nervous system
The division of the peripheral nervous system that controls the body skeletal muscles also called the skeletal nervous system
Somatic nervous system
The part of the peripheral nervous system that controls the glands in the muscles of the internal organs it’s sympathetic division arouse. It’s parasympathetic division calms
Autonomic nervous system
The division of the autonomic nervous system is that arouses the body, mobilizing its energy in stressful situations
Sympathetic nervous system
The division of the autonomic nervous system that calms the body conserving is energy
Parasympathetic nervous system
Simple automatic response to sensory stimulus such as the knee-jerk response
Reflex
The junction between the axon tip of the sending neuron in the dendrite or body cell of the receiving neuron the tiny gap at this junction is called the synaptic gap or synaptic cleft
Synapse
The bodies slow chemical communication system; set of glands that secrete hormones into the blood stream
Endocrine system
Chemical messengers that are manufactured by the endocrine glands, travel through the bloodstream, and effect out tissues
Hormones
The pair of endocrine glands that sit just above the kidneys and secrete hormones that help arouse a body in times of stress
Adrenal glands
The endocrine system is most influential gland. Under the influence of the hypothalamus, the pituitary regenerates growth and controls other endocrine glands
Pituitary gland
