fun facts: muscular system you use 14 muscles to smile and 43 to frown. the human body has more than...
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FUN FACTS: Muscular System • You use 14 muscles to smile
and 43 to frown.• The human body has more
than 650 muscles.• The strongest muscle of the
body is the tongue, and every person has a unique tongue print.
• The muscle that lets your eye blink is the fastest muscle in your body. It allows you to blink 5 times a second.
Muscular System
Function: Works with skeletal system to produce voluntary movement; helps to circulate blood and move food through the digestive system
Structures: Skeletal muscle, smooth muscle, and cardiac muscle
Skeletal System
Functions: •Protects organs and supports the body•Works with muscles to allow movement•Stores fat and minerals •Make red blood cells in the bone marrow
Structures: Bones, cartilage, ligaments, and tendons
FUN FACTS: Skeletal System• The bones in your body
are not white - they range in color from beige to light brown.
• The adult skeleton contains 206 bones, and more than half them are found in your hands and feet.
• The smallest bone is the “stirrup”- it is found in the ear and is less than an inch long.
Distal
epiphysis
Proximal
epiphysis
diaphysis
yellow marrow
epiphyseal line
periosteum
compact bone
spongy bone
Endosteum
hyaline cartilage
Sharpey’s fibers
HumerusUlna
RadiusCarpals
MetacarpalsPhalanges
HumerusUlna
RadiusCarpals
MetacarpalsPhalanges
The Upper Limb (Forelimb)
The Upper Limb (Forelimb)
FemurPatellaTibia
FibulaTarsals
MetatarsalsPhalanges
FemurPatellaTibia
FibulaTarsals
MetatarsalsPhalanges
The Lower Limb (Legs)
The Lower Limb (Legs)
LET’S CONNECT!• Ligaments is the
tissue that connects bones to bones.
• Cartilage is at the end of the bones to protect the bones from rubbing together. – Cartilage is a tough but
flexible tissue that gives our nose and ears shape.
Nervous System
Function: Coordinates the body’s response to changes in its internal and external environments
Structures: Brain, spinal cord, and peripheral nerves
DIVISIONS• CNS: Central Nervous System
– Relays messages, processes information, and analyzes information
• PNS: Peripheral Nervous System– The sensory division transmits impulses
from sense organs to the CNS– The motor division transmits impulses
from the central nervous system to the muscles or glands
• Somatic Nervous System: regulates CONSCIOUS actions (Ex. Wiggling toes)
• Autonomic Nervous System : regulates automatic or involuntary actions (Ex. Heart rate)