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
The biceps brachii is a large, thick muscle on the ventral portion of the upper arm. It is a double-headed muscle, meaning that it has two points of origin or ‘heads’ in the shoulder area
extensors
a muscle whose contraction extends or straightens a limb or other part of the body. Often contrasted with flexor
biceps femoris
The biceps femoris is a long muscle located in the posterior aspect of the thigh. It is part of the hamstrings muscle group and runs from the ischial tuberosity to the proximal part of the fibula
external oblique
The external oblique muscle is one of the outermost abdominal muscles, extending from the lower half of the ribs around and down to the pelvis
buccinators
The buccinator is a thin, flat muscle lining the cheek
deltoid
triangular:
denoting a thick triangular muscle covering the shoulder joint and used for raising the arm away from the body.
external intercostals
most superficial set of muscles that occupy the 11 intercostal spaces.
fibularis longus
long muscle located superficially in the lateral compartment of the leg, together with the fibularis brevis muscle
Flexors
a muscle whose contraction bends a limb or other part of the body. Often contrasted with extensor
frontalis
FRONTALIS is the muscle of the forehead that forms part of the occipitofrontalis —called also frontalis muscle.
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 which move the thigh, the largest of which is the gluteus maximus.
gluteus medius
a large fan-shaped muscle located in the posterior hip, extending from the ilium to the proximal femur.
internal oblique
The abdominal internal oblique muscle, also internal oblique muscle or interior oblique, is an abdominal muscle in the abdominal wall that lies below the external oblique muscle and just above the transverse abdominal muscle.
latissimus dorsi
either of a pair of large, roughly triangular muscles covering the lower part of the back, extending from the sacral, lumbar, and lower thoracic vertebrae to the armpits.
masseter
a muscle which 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
paired facial muscle that surrounds each orbit and the adjacent periorbital region.
orbicularis oris
a complex circular muscle that surrounds the orifice of the mouth and forms the majority of the lips
pectoralis major
The pectoralis major is a thick, fan-shaped or triangular convergent muscle situated at the chest of the human body
rectus abdominus
ny of several straight muscles.
each of a pair of long flat muscles at the front of the abdomen, joining the sternum to the pubis and acting to bend the whole body forward or sideways.
rectus femoris
division of the quadriceps muscle lying in the anterior middle region of the thigh, arising from the ilium by two heads, inserted into the tuberosity of the tibia by a narrow flattened tendon, and acting to flex the thigh at the hip and with the rest of the quad.
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
relatively large muscle that originates from a small facet on the rough superolateral surface of the ischial tuberosity.
semitendinosus
The semitendinosus is a long superficial muscle in the back of the thigh. It is part of the hamstrings muscle group and attaches between the ischial tuberosity of the pelvis and the proximal end of the tibia. The muscle is named for its long tendon of insertion
soleus
a broad muscle in the lower calf, below the gastrocnemius, that flexes the foot to point the toes downward.
sternocleidomastoid
each of a pair of long muscles that connect the sternum, clavicle, and mastoid process of the temporal bone and serve to turn and nod the head.
temporalis
a fan-shaped muscle which runs from the side of the skull to the back of the lower jaw and is involved in closing the mouth and chewing:
tibialis anterior
fusiform muscle found in the anterior part of the leg. Lying superficially in the leg, this muscle is easily palpable lateral to the anterior border of tibia.
trapezius
either of a pair of large triangular muscles extending over the back of the neck and shoulders and moving the head and shoulder blade.
triceps brachii
The triceps brachii is a three-headed muscle of the arm. It is located on the dorsal part of the upper arm and spans almost the entire length of the humerus. The main function of the triceps is elbow joint extension
vastus lateralis
the division of the quadriceps muscle that covers the outer anterior aspect of the femur, arises chiefly from the femur, and inserts into the outer border of the patella by a flat tendon
vastus medialis
The vastus medialis is an extensor muscle located medially in the thigh that extends the knee. The vastus medialis is part of the quadriceps muscle group. The vastus medialis is a muscle present in the anterior compartment of thigh, and is one of the four muscles that make up the quadriceps muscle
zygomaticus
The zygomaticus is a facial muscle that originates from the zygomatic bone and inserts into the angle of the mouth
quadriceps
the large muscle at the front of the thigh, which is divided into four distinct portions and acts to extend the leg:
hamstring
any of five tendons at the back of a person’s knee:
