Unit 3, Lesson 1: Skeletal System - Colorado FFA

Unit 3, Lesson 1: Skeletal System - Colorado FFA

Unit 3, Lesson 3: Skeletal System What is the function of bone? Bone helps with: Movement Support Protection What is bone made of?

Bone is comprised of: 26% minerals (mostly calcium phosphate and calcium carbonate) 50% is water 4% is fat 20% is protein Bone requires adequate amounts of vitamins and minerals in the ration.

Important Terms Related to the Skeleton Skeletons can be divided into two sections, which include a. Axial SkeletonThese bones are on or close to the midline axis of the body and include the skull, vertebrae and ribs. b. Appendicular skeleton

These bones project from the body in the pectoral (front) and pelvic (hind) limbs, and are connected to the body through the bones of the girdles. Other Important Terms, Con't. c. Jointspoints where two or more bones meet.

d. LigamentTough band of connective tissue connecting one bone to another. Other Important Terms, Con't. e. TendonThick band of connective tissue that attaches muscle to bone. f. Compact Bonelayer of protective hard bone tissue surrounding every bone

g. Spongy Bonesoft bone filled with many holes and spaces surrounded by hard bone. Types of bones in the animal body Long Bones--They serve as support columns. They assist the animal in body support, locomotion and eating. Example: Femur Short Bones--They are shaped like a cube and are located in complex joints, such as the knee and hock. They diffuse concussion and diminish friction. Example: Hock

Flat Bones--They protect vital organs such as the brain, the heart, and the lungs. They are longer and wider than they are thick. Example: Scapula Types of bones in the animal body Pneumatic bones--they contain air

spaces called sinuses that are in contact with the atmosphere. Example: Frontal face bones. Irregular Bones--important to the protection and support of the central nervous system and are points of some muscle attachment.

Example: Vertebrae Sesamoid Bones--they are flat and round. They are located along the course of tendons. Example: Kneecap or patella Horse Skeleton

Unlabeled Horse Skeleton

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