Which functional group has the major responsibility for producing a specific movement?
agonists
Which of the following muscles is named for its origin and insertion?
deltoid
trapezius
gluteus maximus
sternocleidomastoid
sternocleidomastoid
Which of the following is CORRECTLY matched?
1. circular arrangement of fascicles: describes the deltoid muscle
2. parallel arrangement of fascicles: characteristic of sphincter muscles
3. pennate arrangement of fascicles: spindle-shaped muscle
4. convergent arrangement of fascicles: fan shaped muscle
4. convergent arrangement of fascicles: fan shaped muscle
Most skeletal muscles of the body act in ________.
third-class lever systems
The major head flexor muscles are the ________.
sternocleidomastoid muscles
The main forearm extensor is the ________.
triceps brachii
The ________ muscles compress the cheeks to help keep food between the grinding surfaces of the teeth while chewing.
buccinator
Which is(are) the most important muscle(s) of inspiration (inhalation)?
diaphragm
Which of the following is a hamstring muscle?
vastus medialis
fastus lateralis
biceps femoris
rectus femoris
biceps femoris
Which of the following muscles is innervated by the phrenic nerve?
diaphragm
external intercostals
sternocleidomastoid muscles
internal intercostals
diaphragm
A reduction in the lateral angle of the glenohumeral joint in relation to the anatomical position would be called __________.
adduction
Movement of the shoulder laterally away from the body is called __________.
abduction
The prime mover of hip extension is the __________.
gluteus maximus
The tensor fascia latae is involved in hip __________.
abduction
Muscles that act on the knee joint form most of the mass of the __________.
thigh
To allow for flexion, the __________ unlocks the knee joint.
popliteus