Biopsychology Flashcards
what are the two main functions of the nervous system?
1) to collect,process and respond to information in the environment
2) to direct and coordinate the working of different organ cells in the body
what does the peripheral nervous system do?
transmits information to and from the central nervous system
what does the central nervous system do?
is concerned with all life processes and psychological functions
what does the somatic nervous system do?
transmits information to and from senses to the central nervous system.
also directs muscles to react and move
what does the autonomic nervous system do?
transmits information to and from internal organs to sustain life processes
what does the brain do?
maintains life involved in higher functions and psychological processes
what does the spinal cord do?
receives and transmits information to and from the brain
what does the sympathetic nervous system do?
increases bodily activity
what does the parasympathetic nervous system do?
maintains or decreases bodily activity
what does the central nervous system consist of?
the brain and spinal cord
what are sensory neurones functions?
tells the rest of the brain about internal and external environment by processing information taken from one of the five senses
Differences between the autonomic nervous system and the somatic nervous system
1) the SNS uses sensory and motor neurones while the ANS only uses motor neurones
2) the ANS controls internal organs/ glands while the SNS controls skeletal muscles and movement
what are relay neurones functions?
carries messages from one part of the central nervous system to another. they connect sensory and motor neurones
what are motor neurones functions
carries signals from the central nervous system which helps organs including glands and muscles to function
Hormones released from the pituitary gland:
Adrenal tropic hormone (anterior)
target organ: adrenal cortex
stimulate release of glucocorticoids such as cortisone- key components in the stress response
Prolactin
target organ: mammary glands
stimulates milk production and release
Oxytocin (posterior)
important in promoting uterine constrains in childbirth and lactation after birth
