Nervous System
Identify the structure of a Neuron
Neurons are the nerve cells of the body; they are made up of the cell body, dendrites, and axons.
Define myopia
nearsightedness (inability to clearly focus on distant objects)
Define STRESS
the challenges that face us in life and our responses to those challenges
Name the 3 types of mental disorders common among teenagers.
Eating disorders
anxiety disorders
depression
In regard to your mental health, what are some things you can control?
Your response to a situation/your attitude
Your thoughts (what you allow yourself to meditate on)
Your breath
Compare and contrast the CNS and PNS
CNS - central nervous system (brain and spinal cord)
PNS - peripheral nervous system (nerves)
The part of the eye that focuses the rays of light which pass through it.
Lens
How does the body respond to extreme stress
"fight or flight"
brain activated (highest level of alertness)
pupils dilate (senses highly attuned)
HR/BP/breathing increase
Muscles become stronger/tense
Blood flow directed from GI tract to skeletal muscles
Cells increase rate of energy production
Liver releases glucose into bloodstream
Blood clotting ability increases
Perspiration increases
Digestion slows
What can happen when you allow your emotions to control you?
You make yourself more vulnerable to stress, depression and physical illness.
Name some habits to help ensure a good night's sleep
avoid caffeine in the late afternoon
exercise regularly (more than 3 hours before bedtime)
establish a bedtime routine
try to go to sleep and wake up at the same time
Name the 3 parts of the brain and what each does
Cerebrum - largest part of the brain (2 hemispheres; cerebral cortex) - conscious thought, memory and interpreting sensory info
Cerebellum - 2nd largest part of the brain (complex mvmt - habit)
Brain Stem - midbrain, pons and medulla oblongata (involuntary mvmts)
Identify the outermost layer of the eye
*sclera - white of the eye
*cornea - transparent portion at the front of the eye
Name some benefits of exercise in relation to stress
relieves mental stress - redirects nervous energy to physical energy
boosts melatonin (helps w/ sleep)
boosts endorphins
increases resistance to fatigue
improves immune function
improves GI function
helps improve self-discipline
improves endurance, strength and appearance
increase metabolism
What type of mental disorder has the highest death rate?
Eating disorders (anorexia/bulimia) 10% death rate
What are some ways you can exercise your brain
read
outdoor activities
family interaction
physical exercise
hobbies
Name the 4 lobes of the brain and what each does
1. Frontal - personality, judgement, self control, voluntary muscles
2. Temporal - hearing, taste and smell
3. Parietal - analyzes senses and feel sensations
4. Occipital - vision
Identify the 3 main parts of the ear
-outer ear (part of the ear you can see, auditory canal and ear drum)
-middle ear (small hollow chamber w/in temporal bone of skull)
-inner ear (consists of cochlea - transmits nerve impulses to the auditory nerve)
Name some ways to deal with stress in a healthy way
Sleep (8-10 hours)
Positive thoughts
Controlling Emotions
Exercising your brain
What are anxiety disorders?
The result of fears and apprehensions that interfere with everyday life.
What does it mean to have a sound mind?
The ability to make decisions from a biblical perspective (particularly the ability to judge between right and wrong). Having the mind of Christ.
(WWJD)
Compare and contrast the somatic nervous system and the autonomic nervous system
Somatic nervous system- movements you control
Autonomic nervous system- don't control consciously
*autonomic has 2 divisions:
-sympathetic : stimulated while active
-parasympathetic : stimulated while at rest
Partial or complete hearing loss due to repeated or prolonged exposure to excessively loud sounds
Sensorineural deafness (nerve deafness)
How can excessive stress affect the body over time?
Headaches, physical and mental fatigue, digestive issues, high BP, increased susceptibility to colds, ulcers and other infections... eventually heart disease and early death.
Name and describe the 3 types eating disorders.
Anorexia Nervosa (not eating)
Bulimia Nervosa (binging and purging)
Compulsive overeating (eating with no regard to body's needs; allowing appetite to control decisions about food)
What does each letter in the word DISCERN stand for?
D - determine your choices
I - inquire of God
S - search the scriptures
C - consider Godly counsel
E - eliminate worldly thinking
R - recognize God's leading
N - never compromise the truth