Skeletal System

Anatomical Postion

Body Planes and Directions

Skeletal System Terminology Osteo-Bone, frame work

Skeletal System Terminology Osteo-Bone Myel/o- Bone marrow- creates bloods cells

Skeletal System Terminology Osteo-Bone Myel/o- Bone marrow Arthr/o- Joints-makes motion possible

Skeletal System Terminology Osteo-Bone Myel/o- Bone marrow Arthr/o- Joints- Chondr/o- Cartilage- creates smooth surface for joints and protects ends of bones

Skeletal System Terminology Osteo-Bone Myel/o- Bone marrow Arthr/o- Joints Chondr/o- Cartilage Burs/o- Bursae— fluid filled sack that cushions areas subjected to friction

20 Little Known Facts About The Human Body A human being loses an average of 40 to 100 strands of hair a day. A cough releases an explosive charge of air that moves at speeds up to 60 mph. Every time you lick a stamp, you're consuming 1/10 of a calorie. A fetus acquires fingerprints at the age of three months. A sneeze can exceed the speed of 100 mph. Every person has a unique tongue print. According to German researchers, the risk of heart attack is higher on Monday than any other day of the week.

Skeletal System Functions- provides frame work, calcium storage, blood cell formation, movement

Skeletal System Functions- provides frame work, calcium storage, blood cell formation, movement 206 bones- a few people will have 205 or 207

Skeletal System Functions- provides frame work, calcium storage, blood cell formation, movement 206 bones- a few people will have 205 or 207 Axial Skeleton- 80 bones, skull, spine, ribs and sternum

Skeletal System Functions- provides frame work, calcium storage, blood cell formation, movement 206 bones- a few people will have 205 or 207 Axial Skeleton- 80 bones, skull, spine, ribs and sternum Appendicular skeleton- 126 bones, upper and lower extremities, shoulders, and pelvis

After spending hours working at a computer display, look at a blank piece of white paper. It will probably appear pink. An average human drinks about 16,000 gallons of water in a lifetime. A fingernail or toenail takes about 6 months to grow from base to tip. An average human scalp has 100,000 hairs. It takes 17 muscles to smile and 43 to frown. Babies are born with 300 bones, but by adulthood we have only 206 in our bodies. Beards are the fastest growing hairs on the human body. If the average man never trimmed his beard, it would grow to nearly 30 feet long in his lifetime.

Bone structure

Typical Long Bone Ep ip hy sis Diaphysis

Other bone landmarks Foramen- hole in the bone for blood supply and nutrient transport

Other bone landmarks Foramen- hole in the bone for blood supply and nutrient transport Tubercle- bump for tissue attachment

Articulations-Joints

2 or more bones join together/connect

Articulations-Joints 2 or more bones join together/connect Ligaments hold bones together

Types of joints Suture- immovable joint in the skull

Types of joints Suture- immovable joint in the skull Symphysis- moves slightly, connect pubic bones together

Types of joints Suture- immovable joint in the skull Symphysis- moves slightly, connect pubic bones together Synovial – movable joint, most of the joint in the body are synovial

Synovial Joints A joint capsule surrounds the joint

Synovial Joints A joint capsule surrounds the joint Filled with synovial fluid –Lubricates and cushions the joints –Provides nutrients to the joints

Types of Synovial Joints Ball and Socket—hip and shoulder joints

Types of Synovial Joints Ball and Socket—hip and shoulder joints Hinge- knee and elbow

Types of Synovial Joints Ball and Socket—hip and shoulder joints Hinge- knee and elbow Saddle- ankle and thumb- rotation

By age sixty, most people have lost half of their taste buds. By the time you turn 70, your heart will have beat some two-and-a-half billion times (figuring on an average of 70 beats per minute.) Each square inch of human skin consists of twenty feet of blood vessels. Every human spent about half an hour as a single cell. Every square inch of the human body has an average of 32 million bacteria on it. Fingernails grow faster than toenails. Humans shed about 600,000 particles of skin every hour - about 1.5 pounds a year. By 70 years of age, an average person will have lost 105 pounds of skin.

Bone to Memorize Humerus- Ulna Radius Carpals Phalanges Femur, trochanter, head, neck Patella

Bone to Memorize Tibia Fibula Talus Calacaneous Sternum Xyphoid proccess Manubrium

Bone to Memorize Clavicle Cervical vertebrae Thoracic Vertebrae Lumbar Vertebrae Sagittal sutures Coronal sutures Fontanel Mandible

Bone to Memorize Tarsals Metacarpals Metatarsals Ilium Sacrum Scapula Ribs- 7 true, 3 false, 2 floating

Extra stuff Right vs Left- humerus and femur Hold the bone up to your body, understand the angles and projections Be able to identify bones from an x-ray

Male vs Female the “glass” sign