MUSCULOSKELETAL SYSTEM CH 15
The musculoskeletal system's primary functions include :supporting the body
allowing motion protecting vital organs.
Who takes care of people with musculoskeletal problems/conditions?.
Orthopedist: A surgeon, a physician who corrects congenital or functional abnormalities of the bones with surgery, casting, and bracing. Orthopedists also treat injuries to the bones, joint and muscle.
Rheumatologist-health problems affect the joints, muscles, bones and sometimes other internal organs (e.g., kidneys, lungs, blood vessels, brain). Because these diseases are often complex, they benefit from the care of an expert. Only rheumatologists are experts in this field of medicine. primarily joint problems.
Osteopathic Dr-DOs practice a "whole person" approach to medicine. Instead of just treating you for specific symptoms or illnesses, they regard your body as an integrated whole. Emphasis on good body mechanics and promote health.
Chiropractors-- treat patients with health problems of the neuromusculoskeletal system, which includes nerves, bones, muscles, ligaments, and tendon.not actual physician that went to medical school.
PT-Physical therapists provide services that help restore function, improve mobility, relieve pain, and prevent or limit permanent physical disabilities of patients with injuries or disease. . Patients may include accident victims and individuals with disabling conditions such as low back pain, fractures, head injuries, arthritis, heart disease, and cerebral palsy.
Unlike other living organs, bones are firm and strong, but they have their own blood, lymphatic vessels, and nerves.
There are two types of tissue inside bones:
- Compact bone: This hard and dense tissue makes up the outer layer of most bones and the main shaft of long bones, such as those in the arms and legs.
- Nerves and blood vessels live inside this tissue.
- Spongy bone: filled with red bone marrow.
- It is found at the ends of long bones, like the head of the femur, and at the center of other bones.
- Red bone marrow forms most of the blood cells in the body and helps destroy old blood cells.
- The skull consists of 22 separate bones-fused at about age 2
facial bones-are all joined together by sutures
Vertebral column-spinal column called vertabrae separated by pads of cartiledge (discs)26
First 7=Cervical c1-c7
Next 12 are called Thoracic(chest) T1-T12
Next 5 are called Lumbar L1-L5 Strongest ones
Sacrum at bottom triangular shape bone
Coccyx=tailbone -the end
Where is the sternum?
Ribs there are 12 pairs-look at how they are attatched!
Are the last two attatched to anything in the front? Anterior?
Hand and Arm Bones-in correct anatomical position palms facing up
Bones of thorax,pelvis,& extremities
FEMUR-Everyone grab your femur-its the biggest bone in your body!!!
Tibea/Fibula-Which one is bigger? Little fibs are sometimes ok
Muscles-3 Types-Over 600 in your body!!
The muscular system is the series of muscles throughout the body that moves the skeleton, maintains posture through steady contraction, and generates heat through cell metabolism.
- Origin and insertion of muscles
- The origin is the end of a muscle which is attached to a fixed bone.
- The insertion is the end of the muscle that is attached to the bone which moves.
ACTIONS-USE IT OR LOSE IT
K sit back down and get out your study guides
Types of muscles
Skeletal muscle represents the majority of muscle tissue. It is the type of muscle that powers movement of the skeleton, as in walking and lifting.
Muscle tissue that contracts without conscious control, having the form of thin layers or sheets made up of spindle-shaped, unstriated cells with single nuclei and found in the walls of the internal organs, such as the stomach, intestine, bladder, and blood vessels, excluding the heart.
Cardiac muscle is responsible for pumping blood throughout the body. ONLY IN HEART!!