Body Systems

Hair, skin, nails, sweat, exocrine glands

Bones supporting body

Collects and processes information from the senses via nerves and the brain and tells the muscles to contract to cause physical actions

Circulates blood via heart, arteries and veins Also Lymphatic system, which circulates lymph (returns filtered blood)

Hormones enable chemical communication within the bocy

Enables body to move using muscles

Brain and spinal cord

All parts outside the brain and spinal cord Cranial and spinal nerves Communication lines between CNS and body

Somatic and visceral nerve fibers

Motor Nerve fibers

division of the PNS that includes all of the involuntary efferent neurons. Visceral motor (involuntary) Sympathetic: fight or flight, increases HR, breathing, adrenaline and stress hormones Parasympathetic: rest and digest when body is relaxed. Decreases all of above.Conservation.

division of the PNS that includes all of the voluntary efferent neurons. Somatic motor (voluntary)

Lymphatic vessels carry lymph Provides accessory return route for blood Defense for immune system

Upper GI tract: liver, esophogus, stomach, gallbladder, pancreas, omentum, spleen Lower GI tract: small intestine, large intestine (colon)

Hypothalamus Pineal gland Pituitary Thyroid Thymus Pancreas

Upper: nose, sinuses, Larynx Lower: Trachea, lungs (bronchial system), diaphragm

Kidneys, penis, prostate, ureters, urethra, bladder, vagina