Nervous System
Central and Peripheral
Name the three types of neurons.
Sensory, motor and interneuron.
What are the three main parts of the brain?
Cerebrum, Cerebellum and Spinal Cord.
What is the function of the endocrine system?
It controls system of organs that sends messages around the body to maintain the body’s internal environment.
What is homeostasis?
It is the maintenance of a stable internal body environment, despite changes in the external environment.
Explain what makes up the CNS
Brain and Brainstem
Name the 5 main parts of a neuron.
Axon, axon terminal, cell body, dendrites and myelin sheath.
Outline the function of the frontal lobe.
Emotional regulation, planning, reasoning, problem solving and language production.
What hormones does the pituitary gland produce
Human growth hormone and antidiuretic hormones
What three things have to coordinate during homeostasis?
The nervous system, hormones and organs.
Explain what makes up the PNS
Nerves
Explain the role of a neuron.
Neurons carry electrical messages called nerve impulses from one part of the body to another.
Outline the function of the parietal lobe.
perception of taste, pain, temperature, and touch.
Explain the function of the Thyroid.
Produces thyroxine and controls chemical reactions in cells.
What are the negative feedback mechanisms?
A system that maintains homeostasis by reversing a change to return to its set point.
Explain the role of the nervous system.
The nervous system sends and receives signals from different parts of the body to control and coordinate movements and sensory information.
How is a sensory neuron different to a motor neuron?
In a sensory neuron the cell body hangs off its axon and does not have any dendrites attached.
Outline the function of the temporal lobe.
interpreting, organising, and remembering information.
What hormones does the adrenal gland produce?
Stress hormones cortisol and adrenaline.
Describe the negative feedback loop for the body responding to increased body temperature by sweating.
Increase in body temperature --> sweating --> decrease in body temperature
Outline the difference between the somatic and autonomic nervous system.
Somatic controls voluntary muscle movements and the autonomic controls involuntary muscle movements.
What is the role of an interneuron?
Link sensory and motor neurons.
Outline the function of the Occipital lobe.
Vision
Explain the function of the hypothalamus.
Links the nervous and endocrine system, secretes hormones into the pituitary gland
Describe the negative feedback loop for the body responding to low blood sugar (glucose) by eating a sugary snack.
Decrease in blood glucose --> eat a sugary snack --> Increase in blood glucose