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The backbone, which protects the spinal cord, consists of a column of small bones, each of which is called a vertebrae.
The backbone, which protects the spinal cord, consists of a column of small bones, each of which is called a vertebrae.
- Between the vertebrae are disks made of cartilage, a type of connective tissue that is softer than bone.
- The cartilage disks act as cushions for the vertebrae and permit the spinal cord to twist and bend.
- Between the vertebrae are disks made of cartilage, a type of connective tissue that is softer than bone.
- The cartilage disks act as cushions for the vertebrae and permit the spinal cord to twist and bend.
- Cartilage
- Blood vessels
- Fibrous connective tissue
- Yellow bone marrow
- Central cavity
- Compact bone
- Spongy bone (contains red bone marrow)
- Cartilage
- Blood vessels
- Fibrous connective tissue
- Yellow bone marrow
- Central cavity
- Compact bone
- Spongy bone (contains red bone marrow)
Bones are living organs because bones are composed of living connective tissue.
Bones are living organs because bones are composed of living connective tissue.
joint: area where a bone meets another bone
ligament: connect bone to bone (tissue, not location)
tendon: connect muscle to bone (tissue, not location)
joint: area where a bone meets another bone
ligament: connect bone to bone (tissue, not location)
tendon: connect muscle to bone (tissue, not location)
- Pivot joint: Neck
- Ball-and-socket joint: Shoulder
- Gliding joint: Wrists
- Hinge joint: Knee
- Pivot joint: Neck
- Ball-and-socket joint: Shoulder
- Gliding joint: Wrists
- Hinge joint: Knee
- Arthritis refers to a group of skeletal disorders that involve inflammation of the joints.
- One form of arthritis occurs as part of aging-cartilage between bones wears down, and the joints become swollen, stiff, and sore.
- Arthritis refers to a group of skeletal disorders that involve inflammation of the joints.
- One form of arthritis occurs as part of aging-cartilage between bones wears down, and the joints become swollen, stiff, and sore.
- Osteoporosis is a disorder in which bones become thinner, more porous, and more easily broken.
- Factors: age, gender (more in women), estrogen and testosterone decrease, insufficient exercise, diet poor in Ca++ and phosphorus, too little vitamin D, smoking.
- Osteoporosis is a disorder in which bones become thinner, more porous, and more easily broken.
- Factors: age, gender (more in women), estrogen and testosterone decrease, insufficient exercise, diet poor in Ca++ and phosphorus, too little vitamin D, smoking.