MUSCULAR SYSTEM Flashcards
What are the muscle that function together to produce movement?
Synergists
What are the muscles that elevate the mandible?
Temporalis and Masseter
What is the muscle that depresses the mandible?
Digastric
What is the muscle that move the mandible from side to side?
Pterygoid
These muscles extend, laterally flex, and rotate the vertebral column.
Back Muscles
It runs from the pelvis to the skull, extending from the vertebrae to the ribs.
Erector spinae
What are the three subgroups of the Erector spinae?
Iliocostalis, Longissimus, Spinalis
It allows voluntary control of urination.
External urethral sphincter
It allows voluntary control of defecation.
External anal sphincter
Lifts the rib cage and increases thoracic volume to allow inspiration.
External intercostals
It aids in forced expiration.
Internal intercostal
The pelvic diaphragm is composed of two pairs of muscles. What are they?
Levator ani & Coccygeus
It flexes the extended shoulder and extends the flexed shoulder.
Pectoralis major
It adducts and medially rotates arm; shoulder extension.
Latissimus dorsi
Muscle to bone.
Tendon
Bone to bone.
Ligament
This muscle extends the hip.
Gluteus maximus
These muscles help hold the hip level while walking or running.
Gluteus medius and Gluteus minimus
What are the three compartments of thigh?
Anterior muscles, Posterior muscles, & Medial muscles
This muscle extends the knee.
Quadriceps femoris
This muscle flexes the knee.
Hamstring
These muscles are responsible for most body movements.
Skeletal muscles
These muscles are found in the heart and pumps blood throughout the body.
Cardiac muscles
These muscles are found in the walls of hollow organs and tubes. It has no striation and involuntary control.
Smooth muscles
It is the ability of the muscle to recoil and resume the original resting length.
Elasticity
It extend the entire length of an A band.
Thick filaments
A coin-shaped sheet of protein (connections) that anchors the thin filaments and connects myofibrils to one another.
Z-disc
The ability of the muscle to shorten forcibly.
Contractility
The decreased ability to work.
Fatigue
It extend across the I Band and partway into the A band.
Thin filaments
The ability of the muscle to receive and respond to stimuli.
Excitability
It is the increase in the size of muscles.
Hypertrophy
What do you call the decrease in the size of muscles?
Atrophy
The muscles responsible for pronating the forearm.
Pronator teres & Pronator quadrates
This type of muscle tissue has striations and voluntary control.
Skeletal muscles
