Bio Psych Flashcards
Two halves of the nervous system
Central nervous system
Peripheral nervous system
Two halves of the peripheral nervous system
_ Autonomic nervous system
- somatic nervous system
Two halves of the autonomic nervous system
- Parasympathetic division
- sympathetic division
Two halves of the somatic nervous system
Motor
Sensory
Two halves of the central nervous system
- Brain
- spinal chord
Parasympathetic division
Rest and digest
Sympathetic division
Fight or flight
Name 3 glands in the endocrine system
Any from:
Hypothalamus, pituitary, pineal, thyroid, adrenal, ovaries, testicles
Hypothalamus
The control system,
releases no hormone
Stimulates and controls the release of hormones
Pituitary gland
Master gland
Anterior - adrenocortical trophy hormone (ACTH) - stimulates adrenal cortex and releases of cortisol during stress
Posterior - oxytocin - uterus contractions during birth
Pineal gland
Melatonin - responsible for important biological rhythms including the sleep wakeCycle
Thyroid gland
Thyroxine-responsible for regulativetabolism
Adrenal gland
Adrenal medulla ( adrenaline and noradrenaline ) - fight or flight acute stress
Adrenal cortex - cortisol - releases glucose to give body energy during chronic stress
Ovaries
Oestrogen - controls the regulation of the female reproductive system (menstrual cycle and pregnancy)
Testicles
Testosterone - development during puberty and muscle growth
Gland
Organ that synthesizes and produces hormones
Hormones
A biochemical substance that gets secreted into the bloodstream only affecting target organs
.look at
For
Firing of A neuron
When a neuron is in a resting state the inside cell is negitávely charged compared to the outside of the cell
When a neuron is activated by a stimulus, the inside of the cell becomes positively charged for a split second causing an action, potential to occur
This creates an electrical impulse that travels down the axon towards the end of the neuron
3 types neurons
Sensory neuron
Interneuron
Motor neuron
Sensory neurons
Located outside of the CNS I and in the PNS In clusters known as the ganglia
They are found in receptors such as the eyes, ears, tongue and skin - they carry nerve impulses to the spine and brain
