Biological Bases of Behavior Flashcards
Biological Psychology
the science that deals with the biological basis of behavior, thoughts, and emotions
the science that deals with the biological basis of behavior, thoughts, and emotions
Biological Psychology
Neuron
a specialized cell transmitting nerve impulses; a nerve cell.
a specialized cell transmitting nerve impulses; a nerve cell.
Neuron
Dendrites
a short branched extension of a nerve cell, along which impulses received from other cells at synapses are transmitted to the cell body.
a short branched extension of a nerve cell, along which impulses received from other cells at synapses are transmitted to the cell body.
Dendrites
Axon
the long threadlike part of a nerve cell along which impulses are conducted from the cell body to other cells.
the long threadlike part of a nerve cell along which impulses are conducted from the cell body to other cells.
Axon
Myelin Sheath
a greatly extended and modified plasma membrane wrapped around the nerve axon in a spiral fashion
allows the electrical impulses to travel quickly and efficiently between one nerve cell and the next
a greatly extended and modified plasma membrane wrapped around the nerve axon in a spiral fashion
allows the electrical impulses to travel quickly and efficiently between one nerve cell and the next
Myelin Sheath
Action Potential
the change in electrical potential associated with the passage of an impulse along the membrane of a muscle cell or nerve cell.
the change in electrical potential associated with the passage of an impulse along the membrane of a muscle cell or nerve cell.
Action Potential
Refractory Period
the period after response to a stimulus during which response to a second stimulus, presented shortly after the first, is delayed
the period after response to a stimulus during which response to a second stimulus, presented shortly after the first, is delayed
Refractory Period
Threshold
the lowest point at which a particular stimulus will cause a response in an organism
the lowest point at which a particular stimulus will cause a response in an organism
Threshold
All-or-None Response
the strength of a response of a nerve cell or muscle fiber is not dependent upon the strength of the stimulus
the strength of a response of a nerve cell or muscle fiber is not dependent upon the strength of the stimulus
All-or-None Response
Synapse
The space between the end of a nerve cell and another cell
The space between the end of a nerve cell and another cell
Synapse
Neurotransmitters
chemical messengers that your body can’t function without
chemical messengers that your body can’t function without
Neurotransmitters
Reuptake
The reabsorption of a neurotransmitter by a neuron after the transmission of a neural impulse across a synapse
The reabsorption of a neurotransmitter by a neuron after the transmission of a neural impulse across a synapse
Reuptake
Endorphins
hormones that are released when your body feels pain or stress
hormones that are released when your body feels pain or stress
Endorphins
Agonist
substances that bind to synaptic receptors and increase the effect of the neurotransmitter
substances that bind to synaptic receptors and increase the effect of the neurotransmitter
Agonist
Antagonist Nervous System
blocks or impedes the normal activity of a neurotransmitter at the receptor
blocks or impedes the normal activity of a neurotransmitter at the receptor
Antagonist Nervous System
Central Nervous System
made up of the brain and spinal cord
made up of the brain and spinal cord
Central Nervous System
Peripheral Nervous System
part of your nervous system that lies outside your brain and spinal cord
part of your nervous system that lies outside your brain and spinal cord
Peripheral Nervous System
Sensory (Afferent) Neurons
found in receptors such as the eyes, ears, tongue and skin, and carry nerve impulses to the spinal cord and brain.
found in receptors such as the eyes, ears, tongue and skin, and carry nerve impulses to the spinal cord and brain.
Sensory (Afferent) Neurons
Motor (Efferent) Neurons
cells in the brain and spinal cord that allow us to move, speak, swallow and breathe by sending commands from the brain to the muscles that carry out these functions
cells in the brain and spinal cord that allow us to move, speak, swallow and breathe by sending commands from the brain to the muscles that carry out these functions
Motor (Efferent) Neurons
Interneurons
any neuron that is neither sensory nor motor but connects other neurons within the central nervous system
any neuron that is neither sensory nor motor but connects other neurons within the central nervous system
Interneurons
Somatic Nervous System
a component of the peripheral nervous system associated with the voluntary control of the body movements via the use of skeletal muscles
a component of the peripheral nervous system associated with the voluntary control of the body movements via the use of skeletal muscles
Somatic Nervous System
Autonomic Nervous System
a component of the peripheral nervous system that regulates involuntary physiologic processes including heart rate, blood pressure, respiration, digestion, and sexual arousal
a component of the peripheral nervous system that regulates involuntary physiologic processes including heart rate, blood pressure, respiration, digestion, and sexual arousal
Autonomic Nervous System
Sympathetic Nervous System
a network of nerves that helps your body activate its “fight-or-flight” response
a network of nerves that helps your body activate its “fight-or-flight” response
Sympathetic Nervous System
Parasympathetic Nervous System
a network of nerves that relaxes your body after periods of stress or danger
a network of nerves that relaxes your body after periods of stress or danger
Parasympathetic Nervous System
Endocrine System
The glands and organs that make hormones and release them directly into the blood so they can travel to tissues and organs all over the body
The glands and organs that make hormones and release them directly into the blood so they can travel to tissues and organs all over the body
Endocrine System
Hormones
chemical messengers released from endocrine glands that influence the nervous system to regulate the physiology and behavior of individuals
chemical messengers released from endocrine glands that influence the nervous system to regulate the physiology and behavior of individuals
Hormones
Adrenal Glands
produce hormones that help regulate your metabolism, immune system, blood pressure, response to stress and other essential functions
produce hormones that help regulate your metabolism, immune system, blood pressure, response to stress and other essential functions
Adrenal Glands