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Skeletal System-Functions. Provides shape and support Allows movement (provides a surface to which muscles attach) Protect delicate tissues and organs Storage of minerals (calcium and phosphorus) Produces blood cells. Bone Structure. compact bone: hard and dense for strength - PowerPoint PPT Presentation
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Skeletal System-Functions
• Provides shape and support• Allows movement (provides a surface to
which muscles attach)• Protect delicate tissues and organs• Storage of minerals (calcium and
phosphorus)• Produces blood cells
Bone Structure• compact bone: hard and dense for strength
– Composed primarily of minerals• spongy bone: spaces for lower weight• Marrow: forms blood cells• veins and arteries: to bring nutrients to the cells• nerves: to collect information from the tissue and to
send information to the brain
Parts of Bone
veinartery
spongy bonebone
marrowcompactbone
Parts of Bone: Cross Sectionveins,arteries,nerves
compact bone
spongy bone
bonemarrow
bonemaking cells
compact bone tissue
nuclei of bone cells
tubes where blood vesselsand nerves go through
compact bone
spongy bone
Bone Tissues
Bone Tissues
spongy
Bone Tissues
compact
Bone Tissues
marrow
JOINTS
Joints: any place where two bones come close together
1. Immovable (skull)2. Movable (hinge, ball & socket, pivot,
gliding)What holds the bones together at the joints?ligaments
Type of Joint?
shoulder/upper arm
ball and socket
Type of Joint?
ball and socket
Type of Joint?
gliding
Type of Joint?
gliding
Type of Joint?
immovable
Type of Joint?
pivot
Type of Joint?
pivot
Type of Joint?
hinge
Type of Joint?
hinge