1. Unit 7 Notes: The Nervous & Lymphatic Systems
This template can be used as a starter file for a photo album.

2. (1) Nervous System Structures
Main Parts:
Brain
Spinal Cord
Nerves
Neurons (Cells)
Sensory Parts:
Eyes
Sensory Receptors (within skin)
Tastebuds on Tongue
Ear
Olfactory Receptors in Nose

7. (2) Nervous System Functions
Respond to internal and external changes/stimuli.
Coordinate functioning of all organ systems.
Maintain homeostasis.
Allow for sensory reception.
Allow for memory, logic, problem solving and language.

9. (3) Nervous System Disorders
Imbalance of Neurotransmitters (chemicals used to send nerve impulses):
Alzheimers
Parkinsons
Huntingtons
Addiction
Cerebral Palsy  Cerebrum (brain) does not fully develop or develop properly.
Paralysis  Spinal Cord Severed and cannot receive/send brain messages.

10. (4) Lymphatic System structures
Lymph Vessels
Lymph Nodes
White Blood Cells / Leukocytes
Antibodies and Antigens

13. (5) Lymphatic System functions
Transfer harmful or useless toxins away from cells and out of the body.
Help cells reabsorb an useful nutrients/water filtered out.
Identify foreign cells using antibodies and antigens.
A foreign cell could be bacteria, a virus, or the donor tissue.
Attack and destroy foreign cells.

17. (6) Lymphatic System disorders
Lymphoma  Cancerous white blood cells that flourish in lymph vessels and lymph nodes.
Leukemia  Cancerous white blood cells that flourish in bone marrow.
Autoimmune Diseases  Your body produces antibodies to attack your own cells!
Lupus
Rheumatoid Arthritis
Crohns
Psoriasis