Paper2 Biopsychology Flashcards
Nervous system
Nerve cells that transmit messages between parts of the body
Central nervous system
Brain and spinal cord
Conscious
Peripheral nervous systems
Sensory neurons to CNS
motor neurons away from CNS
Somatic nervous system
Controls muscle movement
Conscious
Autonomic nervous system
Controls actions of glands and internal organs
Motor pathways only
Unconscious
Sensory neurons
Travel towards CNS
Relay neurons
Sensory and motor communication
Not myelinated
Motor neurons
Attached to muscle glands (effector)
Away from CNS
Hypothalamus
Stimulates release of hormones from pituitary gland
Pituitary gland
ACTH hormone
Releases cortisol as stress response
Pineal gland
Hormone melatonin
Biological rhythms like sleep
Thyroid gland
Hormone thyroxine
Regulates metabolism
Adrenal gland
Adrenaline and noradrenaline hormones
Fight or flight
Ovaries
Oestrogen, LH, FSH
Regulates female productivity system
Testes
Testosterone
Male growth and characteristics
Amygdala
Limbic system activated and sends distress signal to hypothalamus
What does the hypothalamus activate?
Sympathomedullary pathway (SAM)
What does the sympathetic nervous system stimulate?
Adrenal medulla part of the adrenal gland
Localisation of the brain
Different areas of the brain deal with different cortical functions
Gyrus
Ridge
Sulcus
Trough
Corpus callosum
Joins left and right side of brain
Cerebral cortex
Higher brain function
4 lobes