A | B |
What are the two major parts of the nervous system? | Central Nervous System and the Peripheral Nervous System |
What makes up the Central Nervous System? | Brain and Spinal Cord |
What makes up the Peripheral Nervous System? | Other branching nerves of the body (NOT brain or spinal cord) |
What are our 5 senses? | taste, touch, sight, smell, hearing |
What does the Cerebrum control? | thinking (reasoning, learning, and memory) |
What does the Cerebellum control? | balance and coordination |
What does the Medulla control? | vital life processes such as breathing |
When the brain tells the body that it is hungry what is it trying to maintain? | homeostasis |
What connects the brain with the branching nerves? | Spinal Cord |
What is the function of neurons? | detect stimuli and send messges to parts of the body |
What is the job of the sensory neurons? | detects stimuli |
What is the job of the interneurons? | connects sensory and motor neurons |
What is the job of the motor neurons? | produces movement by being connected to a muscle |
Do dendrites receive messages or send messages away from the cell body? | receive messages |
Do axons receive messages or send messages away from the cell body? | sends messages away from the cell body |
What is the function of the Fatty Coat? | Protects the axon |
Where is the synapse? | Space between dendrites and next structure |
How do messages cross the synapse? | Nerve cells release hormones that cross from the axon tip, across the synapse and to the next structure |
What is a reflex? | An involuntary response that occurs rapidly |
What is a response? | body's reaction to a change in the environment(stimulus) |
What is a stimulus? | change in the environment |
When a reflex occurs, what part of the central nervous system does it skip? | the brain |
What is a target cell? | a cell in the body that a hormone binds to. |
How does a hormone know where to go in the body? | each hormone has a specific target cell that recognizes it |
Describe negative feedback. | process that turns a system on or off, depending on the condition it produces, just like a furnace (thermostat) in your house. |
What is a hormone? | A chemical that travels through the bloodstream to control changes in the body |
What is the function of the endocrine system? | to coordinate and control the body's activities |
Which gland links the nervous and the endocrine systems? | Hypothalamus |
Which gland controls growth? | Pituitary |
Which gland realeases thyroxin? | Thyroid |
What does thyroxin regulate? | rate of metabolism |
What hormone is produced by the adrenal gland? | Adrenaline |
What is the function of the pancreas? | regulates the amount of sugar in the blood |
What is the function of the ovaries and the testes? | control secondary sex characteristics |
When a particular amount of a hormone in the blodd raches a certain level, the endocrine system sends a signal to stop the realeas of that hormone. What process does this describe? | Negative Feedback |
Why is Negative Feedback important? | helps your body maintain homeostasis |