Biopsychology Flashcards
(29 cards)
What is the function of the endocrine system
Releases hormones into the bloodstream to regulate moods and emotions along with regulating physical needs such as reproduction, growth and development etc.
What is the difference between the endocrine system and TNS
The main difference is that while the nervous system transmits information
via nerves, the endocrine system uses blood vessels to deliver hormones to
their target sites in the body.
What are hormones
Hormones are chemicals that circulate in the bloodstream and are carried to target sites throughout the body.
What 2 parts are our Nervous System split into
Central Nervous System
Peripheral Nervous System
What 2 major things does the CNS control
Brain
Spinal Chord
What is the role of the Nervous System
Relay messages from the brain to the rest of the body to instruct what to do
What is the Peripheral Nervous System further broken down into
Somatic NS
Autonomic System
What is the Autonomic System further broken into
Sympathetic system
Parasympthathetic System
What is the function of the brain
The brain majorly focuses on processing mental thoughts
Has overall ‘control’ over the rest body functions
What is the Spinal Cord responsible for
Passing messages from the brain to the rest of the body (form of electrical impulses)
Transmitting messages back to the brain from various parts of the body
What is the purpose of the somatic nervous system
Concious
Passing messages from sensory organs to the brain
Controls the body’s conscious actions (voluntary)
- Movement etc.
What is the purpose of the autonomic NS
Controls the body’s automatic actions such as breathing
The functions happen quickly so we do not think about it
No conscious thought over the decision
What is the role of the Sympathetic NS
Body’s Alert System
Prepared to respond to threats (fight or flight)
What is the role of the Parasympathetic System
Relaxes the body by counteracting the SNS activation
Cools the body rather than elevate it to prepare for threats
What physical factors takes place during the activation of the Sympathetic Nervous System
Increased heart rate
Pupils Expand
Reduced activity in stomach
Sweat Excess
What physical factors takes place during the activation of the Para Sympathetic Nervous System
Decreased heart rate
Increase activity in stomach
What is the role of the Peripheral NS
Connects the central nervous system (CNS) to the rest of the body
- Relays information via nerve impulses (an electrical impulse) from the rest of the body and back to the CNS
What is the role of the peripheral nerves
Brain, Spinal Chord
Peripheral nerves pick up information about the body and send messages to the spinal cord
Brain sends out impulses to peripheral nerves to control our actions
What is a neuron
Cells in the NS that carry impulses
- Different types of neurons do different things
- Connect brain and body with impulses
What is synaptic transmission
Process that moves communicated messages around the body
What are the 6 structures of a neuron
Cell Body
Dendrites
Axon
Neural Impulse
Myelin Sheath
Terminal Branches
Define Cell Body
The Cell’s main source of support
In control of the system
Role of Dendrites
Receive information from other neurons, called pre-synaptic neurons, or from the environment
Take them in as Neurotransmistteres
Role of Axon
Carry electrical impulses within the brain and between the brain and the rest of the body
