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Transcript
Skeletal and
Muscular
Systems
Vocabulary
•
•
•
•
•
•
Cell – basic unit of structure and function of
living things
Locomotion – movement
Organ – a group of tissues working
together
Organ System - a group of organs working
together
Organism – the living thing with functional
organ systems
Tissue – a group of cells working together
Levels of Organization
•
•
•
•
•
Cell
Tissue
Organ
Organ System
Organism
Skeletal System
•
Functions:
–
–
–
–
Support
1. Provides shape and ____________
Protects
2. ____________tissues
and organs
Phosphorous
3. Stores calcium and _____________
Red
4. Produces _________
blood cells
Skeletal System
– 5. ______________
- allows movement
Locomotion
necessary to:
•
•
•
•
A. escape danger
Shelter
B. find food and _________
C. reproduce
BONES
Made of 206 _________
Cranium
(Protects the Brain)
(Protects the Spinal Cord)
Ribs
(Protects Vital Organs –
Lungs and Heart)
Humerus
(Upper Arm Bone)
Pelvis
Femur
(Largest Bone in the
Body)
Note – the smallest bones in the
body are located in your ear
Skeletal System
•
Cartilage – Connective Tissue
Protect
– 1. Cushions to _______________
the
ends of the bone
– 2. Provides structure and support. Ex.
Ear, Nose
Skeletal System
Joint
• 1. Where two bones meet
• 2. Bones are held together by Ligaments
___________
•
•
Bone--Ligament--Bone
3.Types: Moveable
– A: ball and socket ________________________
Full circular movement
Back & forth movement
– B: hinge _______________________________
– C: pivot ________________________________
Twisting movement
Sliding
– D: gliding ______________________________
4.Immoveable joints-----fused joint……cranium plates
C
A
D
B
Muscular System
Muscle
Made of three types of ________
Type
Description & Function
Example
Skeletal
Muscle
Striated (Bands), Voluntary
react quickly, tire quickly
Biceps
Triceps
Smooth
Muscle
Not striated, involuntary
React slowly, tire slowly
Esophagus
intestines
Cardiac
Muscle
Striated complex mesh
involuntary …reacts
quickly… never tires
Heart
only
Muscular System
Type
Skeletal
Muscle
Smooth
Muscle
Cardiac
Muscle
•
•
•
Antagonistic Pairs
Skeletal muscles work in pairs
As one muscle contracts the other relaxes
•
•
Muscles are attached to bones by
_______________
Tendons
Muscles—tendon—bone
Nervous
All movement is coordinated by the _________
system
• What other systems do you think
is important to the skeletal and
muscular systems?
Nervous System to coordinate movement
Circulatory System to deliver nutrients and oxygen for
energy and take away wastes
Review – Energy
•
•
Energy can not be created or
destroyed
Energy can be converted (transformed
to another form ex. Electrical to Heat
in a clothes iron