CH.4 The Muscular System Flashcards
Functions of the muscular system? (5)
- Muscles hold the body erect and make movement possible.
- Muscle movement generates nearly 85% of the heat that keeps the body warm.
- Muscles move food through the digestive system.
- Muscle movements, such as walking, aid the flow of blood through veins as it returns to the heart.
- Muscle actions moves fluids through the ducts and tubes associated with other body systems.
The muscular system are sometimes referred to jointly as the
Musculoskeletal system
Because of the interactions of these 2 systems (muscular and skeletal), they provide the body with (4)?
Form, support, stability, and the ability to move.
The body has more than 600 muscles, which make up about 40-45% of the body’s weight. Skeletal muscles are made up of fibers that are covered with ______ and are attached to the bones by ________.
Fascia, tendons.
What are muscle fibers?
The long, slender cells that make up muscles.
Each muscle consists of a group of fibers are bound together by what type of tissue?
Connective tissue
What is fascia?
A band of connective tissue that envelops, separates, or binds together muscles or groups of muscles (plural, fasciae or fascias). Fascia is flexible to allow muscle movements.
The term myofascial means
Pertaining to muscle tissue and fascia (my/o means muscle, fasci means fascia, and -al means pertaining to).
What is a tendon?
VS ligament
A tendon is a narrow band of nonelastic, dense, fibrous connective tissue that attaches a muscle to a bone.
VS ligaments are bands of fibrous tissue that form joints by connecting one bone to another bone.
The patellar tendon attaches muscles to the bottom of the patella (kneecap) and the Achilles tendon attaches the ___________ muscle to the heel bone.
Gastrocnemius (major muscle of the calf of the leg)
What is an aponeurosis?
A sheet-like fibrous connective tissue resembling a flattened tendon that connects muscles together or to a bone (plural, aponeuroses).
