Chicken Skeletal

Pneumatic bones

• The pneumatic bones are important to the

chicken for respiration.

• They are hollow bones

• connected to the chicken’s respiratory system and are important for the chicken

• Examples of pneumatic bones:– skull, humerus, clavicle, keel(sternum)

– pelvic girdle

– lumbar and sacral vertebrae.

Medullary bones

• The medullary bones are an important source of calcium for the laying hen.

• Calcium is the primary component of egg shells and a hen – Mobilizes 47% of her body calcium to make an egg shell.

• Examples:– tibia, femur, pubic bones, ribs, ulna, toes, and scapula.

Skull

SKULL

• Skull of the chicken is made up many small bones.

• The rear protects all the structures needed for input and processing of information.

• The front is a food procuring and handling area.

SKULL

• The largest bones in the chicken face are called frontal, parietal and temporal bone.

• They make up the cranium which is the back of the chicken head. There is also a mandible which is another word for the jaw bone.

Sternum

STERNUM• large and positioned under the body

• Pectoral flight muscles are attached to this bone