2.2 Control and Communication Flashcards
What are the three parts of the brain?
Cerebrum, cerebellum, and medulla
What is the function of the cerebrum?
Imagination, conscious thought, and reasoning
What is the function of the cerebellum?
Balance and co-ordination
What is the function of the medulla?
Vital functions such as heart rate and breathing
What is the path of the reflex arc?
Stimulus, receptor, sensory neuron, inter neuron, motor neuron, effector, response
What is a synapse?
A gap between two neurons where messages are transmitted chemically
What are hormones released by?
Endocrine glands
What detects changes in blood glucose levels?
The pancreas
What hormone is released when blood glucose levels increase?
Insulin
What hormone is released when blood glucose levels decrease?
Glucagon
What conversion takes place in the liver when blood glucose levels have increased?
Glucose to glycogen
What conversion takes place in the liver when blood glucose levels have decreased?
Glycogen to glucose
What is glucose?
A sugar used for energy
What is glucagon?
A hormone used to increase blood sugar levels by converting glycogen to glucose
What is glycogen?
A form of glucose stored in the liver
