Nervous system: Parts and reflexes
Nerve impulses travel through this specialised cell
Neuron
Name these parts A and B of the neuron
Dendrites and axon terminal
The brain is the control centre for which kind of action?
Reflex or decision making actions?
Decision making actions
In the endocrine system, where are hormones secreted to?
Bloodstream
Identify one factor that your body must keep constant or regulate
Core temperature, glucose, pH, etc
What are the two major divisions of the nervous system?
peripheral and central nervous system
The three types of neurons are:
Sensory neuron, interneuron, motor neuron
Identify brain structure A
Frontal lobe
Identify endocrine gland A
What is homeostasis?
Maintenance of an internal environment despite external environment
Name the components of the central and peripheral nervous system
CNS: Brain and spinal cord
PNS: Nerves
What is the function of the axon terminal?
Passes electrical signals to another cell
Identify brain structure B
Temporal lobe
Identify endocrine gland B
Thyroid gland
What is the function of the central and the peripheral nervous system?
CNS: Process information
PNS: Transfers information to and from the CNS
Identify and describe the function of part C of the neuron
Myelin sheath. Insulates axons so nerve impulses travel through it faster
Identify and describe the function of brain structure C
Occipital lobe. Responsible for vision and visual processing
Identify endocrine gland C and identify one hormone that it secretes. Describe the function of this hormone.
Adrenal gland; adrenaline; initiates fight or flight in response to stimuli or danger
What hormone could have been active in time points A and B?
A= glucagon
B= insulin
You touch a hot stove and pull away your hand. Describe the stimulus-response model for this action
Stimulus: touching hot stove. Receptor: Heat receptors on skin. Control centre: Spinal cord. Effector: Muscles. Response: Pull away
Describe what a synapse is and what travels through it to transmit a nerve impulse
Gyri
Parietal lobe
Identify structure D and E. Describe the function of E.
Hypothalamus and pituitary gland. Secretes numerous hormones into the bloodstream
A person just had a meal and their blood glucose levels has increased. i) Identify which endocrine gland detects this change. ii) Identify what hormone it releases. iii) Describe what the hormone does
ii) insulin
iii) Decreases blood glucose levels