Muscular system. Flashcards
adductors
a muscle whose contraction moves a limb or other part of the body toward the midline of the body or toward another part.
biceps brachii
A muscle whose long head has origin from the supraglenoidal tuberosity of the scapula and whose short head has origin from the coracoid process, with insertion into the tuberosity of the radius, with nerve supply from the musculocutaneous nerve, and whose action flexes and supinates the forearm
biceps femoris
A muscle whose long head has origin from the tuberosity of the ischium and whose short head has origin from the lower half of the lateral lip of the linea aspera, with insertion into the head of the fibula, with nerve supply from the tibial nerve for the long head and from the peroneal nerve for the short head, and whose action flexes the knee and rotates the leg laterally.
buccinators
a flat, thin muscle in the wall of the cheek.
deltoid
each of the three parts of a deltoid muscle, attached at the front, side, and rear of the shoulder.
extensors
a muscle whose contraction extends or straightens a limb or other part of the body.
external intercostals
Any of the muscles with their origin from the lower border of a rib, with insertion into the upper border of the rib below, with nerve supply from the intercostal nerve
external oblique
the largest and the most superficial (outermost) of the three flat muscles of the lateral anterior abdomen.
fibularis longus
is a superficial muscle in the lateral compartment of the leg, and acts to evert and plantar flex the ankle
flexors
a muscle whose contraction bends a limb or other part of the body.
frontalis
is muscle which covers parts of the skull.
gastrocnemius
the chief muscle of the calf of the leg, which flexes the knee and foot. It runs to the Achilles tendon from two heads attached to the femur.
gluteus maximus
any of three muscles in each buttock that move the thigh, the largest of which is the gluteus maximus.
gluteus medius
The middle of the three muscles in each buttock that arises from the outer surface of the ilium, that is inserted into the greater trochanter of the femur, and that acts to abduct and medially rotate the thigh.
internal oblique
muscle is a muscle in the abdominal wall that lies below the external oblique and just above the transverse abdominal muscles.
atissimus dorsi
a broad, flat muscle on each side of the midback, the action of which draws the arm backward and downward and rotates the front of the arm toward the body.
masseter
a muscle that runs through the rear part of the cheek from the temporal bone to the lower jaw on each side and closes the jaw in chewing.
orbicularis oculi
is a muscle in the face that closes the eyelids
orbicularis oris
is not a simple sphincter muscle like the orbicularis oculi; it consists of numerous strata of muscular fibers surrounding the orifice of the mouth, but having different direction.
pectoralis major
is a thick, fan-shaped muscle, situated at the chest
rectus abdominus
A large muscle in the front of the abdomen that assists in regular breathing movements,
rectus femoris
.is one of the four quadriceps muscles of the human body. The others are the vastus medialis, the vastus intermedius (deep to the rectus femoris), and the vastus lateralis.
sartorius
a long, narrow muscle running obliquely across the front of each thigh from the hipbone to the inside of the leg below the knee.
semimembranosus
is a muscle in the back of the thigh. It is the most medial of the three hamstring muscles.