1. Human Body Systems

2. Human Body Systems Skeletal System: consists of 206 bones
gives the body shape,
support, and protection
works with the muscular system to allow movement
produces RBC’s, WBC’s,
and platelets

3. Muscular System:
- consists of over 600 muscles (skeletal, smooth, & cardiac)
works with the skeletal system to allow movement
moves blood through the blood vessels, causes heart to contract, and moves food through the digestive tract

4. Circulatory System: - also known as the cardiovascular system
- consists of the heart,
blood vessels, and blood
- circulates blood
throughout the body,
as well as, nutrients,
waste and gases;
hemoglobin carries O2
to body cells

5. Respiratory System:
- consists of the nasal cavity, trachea, bronchi, bronchioles, alveoli, lungs, and diaphragm
- allows for respiration (breathing) to occur; controls gas exchange between blood and lungs

6. Digestive System:
- consists of the mouth, esophagus, stomach, small intestine, large intestine, and anus
other organs that help produce and store enzymes that aide in digestion are the liver, gall bladder, and pancreas
- digests or breaks down food;
absorbs nutrients, removes waste, maintains water and chemical balance

7. Excretory System: - also known as the urinary system
- consists of the kidneys,
ureters, urinary bladder,
and urethra
removes nitrogenous wastes from blood in the form of urine

8. Nervous System: -brain, nerves, spinal cord -carries messages in the
form of nerve impulses
throughout the body
neuron

9. Central vs. Peripheral Nervous System
Central Peripheral
brain motor neurons
spinal cord sensory neurons

10. Endocrine System:
- consists of the pituitary, adrenal, thymus, thyroid, and parathyroid glands
- also part of this system is the pancreas, ovaries, and testes
- this system produces hormones, helps regulate body temperature, & maintains homeostasis

11. Lymphatic System: consists of lymph nodes and lymphatic vessels,
as well as, spleen,
thymus, tonsils,
appendix and bone
marrow
- filters the blood, tissue fluid, and maintains fluid balance throughout the body

12. Reproductive System: Female: consists of the ovaries, fallopian
tubes, uterus, and vagina
Male: consists of the prostate gland, testes,
and penis
-produces gametes for reproduction

13. includes bone marrow, lymph nodes, lymphocytes, WBC’s, and antibodies
Immune System:
includes bone marrow, lymph nodes, lymphocytes, WBC’s, and antibodies
defends body against infectious agents

14. Integumentary System:
includes skin, hair, nails, sweat glands
serves as a protective barrier for the body; prevents dehydration, and regulates body temperature