Download Human Body Systems Group #1

Human Body Systems
Group #1 - Support
THE SKELETAL SYSTEM
THE MUSCULAR SYSTEM
THE INTEGUMENTARY SYSTEM (SKIN)
The Skeletal System - Functions
•provides shape & support for body
•protects internal organs
•provides movement
•produces blood cells
•stores calcium and phosphorus
The Skeletal System - Structures
•Cells = bone marrow (hollow area of long bones)
produces blood cells
•Tissues = connective tissue
•ligaments attach bones to other bones
•Organs = humans have an internal skeleton
(endoskeleton) made of 206 bones
The Skeletal System - Interactions
•Muscular = works with muscles to move the body
•Nervous & Senses = responds to the commands of
the nervous system to move including voluntary
motion, involuntary motion and reflexes
•Cardiovascular & Immune = bone marrow produces
red blood cells, white blood cells, and platelets
•Lymphatic = movement of the body pumps the
lymphatic system
The Muscular System - Functions
•provides movement
•supports internal organs
•regulates body temperature
•muscles generate heat
•example: you shiver to keep warm
The Muscular System - Structures
•Cells = are able to contract, stretch, and then regain shape
•Tissues = muscle tissue
•striated (skeletal muscle tissue)
•smooth (internal organ muscle tissue)
•cardiac (heart muscle tissue)
•Organs = muscles, tendons (connect bones and muscles)
The Muscular System - Interactions
•Skeletal = works with bones to move the body
•Nervous & Senses = responds to the commands including voluntary
motion, involuntary motion, and reflexes
•Digestion = chewing, swallowing, and grinding food in stomach
•Cardiovascular = the heart circulates the blood carrying nutrients to
the body
•Respiration = the diaphragm helps the lungs inhale and exhale
•Lymphatic = movement of the body pumps the lymphatic system
The Integumentary System – Skin Functions
•protection of body
•sensory response to environment
•makes vitamin D that helps absorb calcium
•regulates body temperature (sweating to release heat)
•excretes wastes
The Integumentary System – Skin Structures
•Cells = full of keratin protein; very elastic
•Tissues = connective tissue
•Epidermis (top layer, produces new skin)
•Dermis (bottom layer contains nerves, glands, insulating fat,
and melanin)
•Organs = skin is the body’s largest organ
The Integumentary System – Skin Interactions
•Immune =
• holds in important nutrients and fluids
• helps keep out bacteria and viruses
• regulates temperature (fat insulates and sweat gland remove
heat)
•Excretory = sweat gland in the skin remove water and other
substances
•Nervous & Senses – responds to surroundings