1. Anatomy and Physiology
12/9/2013

2. Time Line 11/4 Introductions/Rules/Integumentary pre-test
11/11 Integumentary System (pg14-31)
11/18 Integumentary System(pg14-31)
12/2 Nervous System (1-13)
12/9 Nervous System (1-13)
12/16 Immune System (32-45)
1/6 Immune System(32-45)
1/14 Wright State Invitational

3. Prosopagnosia (Face blindness)
Unable to piece together features in to a recognizable face
Fusiform gyrus usually affected
Part of temporal and occipital lobe
Have very difficult time telling people apart

10. Taste Each mouth has around 10,000 taste buds Five primary tastes Sour
Sweet
Bitter
Salt
Umami

11. Taste Each taste bud has 50-100 specialized cells
Each receptor cell has a tiny hair that sticks out of the cell and tests for chemicals in the saliva
Once stimulated taste hairs send an impulse to your brain
Each taste hair responds best to one of the five tastes

12. Smell We are able to detect thousands of different smells.
Olfactory receptors occupy a stamp sized area of the nasal cavity.
Tiny hairs dangle from olfactory cells which are covered in mucous
When chemicals dissolve in mucous they can activate the receptors
A few molecules is enough
Easily fatigued (get used to smells)

13. Smell Smells are strongly linked to memory
Impulses are directly connected with limbic system (the part of you nervous system that processes emotion)
Usually like or dislike a smell
Smells leave long lasting impressions strongly linked to memory
Smell is a large component of what we think of as taste.
Hot food and cold food taste different

14. Skin Receptors Meissner’s Corpuscule Paccinian’s Corpuscule
Light touch receptor
Found on sensitive areas of the body
Palms, soles, lips, eye lids, external genitals, and nipples
Paccinian’s Corpuscule
Heavy Pressure
Pressure and vibration changes deep in skin
14 per square centimeter of skin
Pain receptors
Most numerous at around 200 per square centimeter of skin

15. Thermoreceptors Most prevalent on face and ears
6 cold receptors for every hot receptor
Cold receptors
Active when skin temperature is less than 95○F but greater than 41○F, but most active at 77 ○ F.
Hot receptors
Active when skin temperature rises above 86 ○ F and most stimulated at 113 ○ F
Beyond 113 ○ F pain receptors take over

16. Epilepsy
Chronic neurological disease that is characterized by seizures
Seizures are physical changes in behavior that occur as a result of abnormal electrical activity in the brain
Gran-mal seizure is most well known kind of seizure
Complex partial seizures can affect the consciousness
Treatment
Medication
Vagus nerve stimulation
Brain surgery

17. Multiple Sclerosis (MS)
Autoimmune disease
Affects brain and spinal cord
Body destroys myelin sheath of axons
Interferes with communication
MS can affect
Vision
Sensation
Coordination
Movement
Bladder and bowel control

18. Shingles Resurfacing of the chicken-pox virus (herpes zoster)
Symptoms include a painful blistering rash that tend to occur in lines around the body
Virus remains dormant in ganglia and upon reawakening can travel along the affected nerves
Viral reawakening happens in times of immune system suppression such as illness, stress, or during aging.

19. Nervous system and drugs
Nicotine
Marijuana
Alcohol
Caffeine