Do Now/ Catalyst Questions What is the saying for remembering which side the ulna is on? Which side is it on? What is the anatomical name for our knee? What is saying for remembering our carpal bones? What are each of the carpal bones? Today’s Lesson Topic: Types of Bones

Review… She Looks Too Pretty To Try and Catch Her (Scaphoid, Lunate, Triquetrum, Pisiform, Trapezium, Trapeziod, Capitate, and Hamtate)

Quick Quiz #3 As always these can be retaken…

Objectives You will be able to identify and classify the types of bones using diagrams, pictures, models, or actual bones. You will be able to describe the general features of a long bone.

Four Types of Bones Long Bones are roughly cylindrical in shape and are significantly longer than wide. They serve as rigid levers that are acted upon by the skeletal muscles to produce body movements- much like a crowbar. Examples: Humerus, Femur, radius, ulna, tibia, fibula, metatarsals, metacarpals, phalanges

Four Types of Bones Short Bones are more nearly equal in length and width. They have limited motion and merely glide across one another enabling the wrists and ankles to bend in multiple directions. The bones of the carpals and the tarsals are short bones.

Four Types of Bones Flat Bones enclose and protect soft organs and provide broad surfaces for muscle attachment. Most of the cranial/facial bones, the sternum, the ribs, the scapula, the clavicle, and the ossa coxae are flat bones.

Four Types of Bones Irregular Bones have elaborate shapes that do not fit into any of the preceding categories. They include the vertebrae and some skull bones, such as the sphenoid and ethmoid bones. The vertebrae are also good examples of irregular bones.

Compact v. Spongy Bone Bones have an outer shell of dense white osseous tissue called compact bone, usually enclosing a more loosely organized form or osseous tissue called spongy bone. The skeleton is about ¾ compact bone and ¼ spongy bone by weight.

Parts of a Long Bone

Parts of a Long Bone Explained When we look at a long bone, we almost immediately recognize two distinctive parts- the shaft, known as the diaphysis, and a head at each end, called the epiphysis. –The diaphysis consists largely of a cylinder of compact bone enclosing a space called the medullary cavity. –The epiphyses are filled with spongy bone.

Parts of a Long Bone Explained When we look at a frontal section of a long bone, we will see a transparent line at the end of the diaphysis and at the beginning of the epiphysis. In children this is known as the epiphyseal plate, but in fully grown adults it is known as the epiphyseal line. –The epiphyseal line is the remnant of the plate, which is the growth center of long bone growth.

Parts of a Long Bone Explained The outside of a long bone is covered in what is known as the periosteum, which provides strong attachment and continuity from muscle to tendon to bone. Finally, at most joints, the ends of the adjoining bones have no periosteum, but rather have a thin layer of hyaline cartilage which provides lubrication for the movement of two bones next to one another to occur easily and pain-free. This is called articular cartilage.

Whiteboards Person closest to the board--- come get them!

Practice Bones- What Type are They? You have 30 seconds to write the type of bone that is shown or named before holding up your whiteboards for me to see and then reviewing the answer.

Practice Bones Tibia Fibula Frontal Sphenoid Metatarsals

Label the Parts on Your Whiteboard A B C D E F G