Human Anatomy & Physiology Collection of Quizlets
The type of muscle whose functional characteristics most closely resemble those of its muscle fibers is the ________ muscle.
In a ________ muscle, the muscle fibers and fascicles lie in a slanted or oblique position to the tendon.
________ muscle fibers pull in different directions, permitting different actions depending on stimulation.
The most common lever systems in the body are those that have the applied force between the fulcrum and the load. These are called ________ levers.
Contracting the gastrocnemius muscles to elevate the body on the toes involves a ________ lever.
A(n) ________ is a muscle whose contraction is chiefly responsible for producing a particular movement.
A muscle that assists the muscle that is primarily responsible for a given action is a(n) ________.
The insertion end of the biceps brachii muscle of the anterior upper arm is
The names of the muscles can indicate all of the following except
A muscle whose name ends in the suffix -glossus would be found within or attached to the __________.
Each of the following terms is a descriptive term for a muscle's action except __________.
Muscles with fibers that run at an angle to the long axis of the body are called _________.
Muscles with fibers that run perpendicular to the long axis of the body are called __________.
Shelly gives her son an ice-cream cone. The boy grasps the cone with his right hand, opens his mouth, and begins to lick the ice cream. Which muscles does he use to perform these actions?
As the child grasps the ice-cream cone, he uses flexor muscles, principally the flexor digitorum superficialis, flexor digitorum profundus, and flexor pollicis longus muscles. Opening his mouth requires the contraction of the platysma and digastric muscles and the relaxation of the masseter, temporalis, and pterygoid muscles. The licking action would involve the genioglossus muscle (to depress and protract the tongue) and the palatoglossus muscle (to elevate the tongue).
While playing softball, Sid pulls his hamstring muscle. As a result of the injury, he has difficulty extending and medially rotating his thigh. Which muscle(s) of the hamstring group did he probably injure?
Skeletal muscles in which the fascicles form a common angle with the tendon are ________ muscles.
Muscles that insert on the olecranon process of the ulna can act to:
flex the forearm.
extend the forearm.
abduct the forearm.
adduct the forearm.
extend the carpals
A muscle that assists the agonist is responsible for a given action is a(n) ________.
The antagonist of the pectoralis major is the ________.
Which pair of muscles is antagonistic to each other in action?
the zygomaticus and the orbicularis oris
the trapezius and the sternocleidomastoid (movement at the neck)
the internal obliques and the intercostal muscles
the latissimus dorsi and the trapezius
the orbicularis oris and the orbicularis oculi
A muscle that flexes the spinal column is the __________.
The freedom of movement is greatest in the __________.
thoracic vertebral column
Damage to the pectoralis major would interfere with a person's ability to ____________.
extend the forearm.
abduct the humerus.
Flexion of the humerus
elevate the scapula.
rotate the elbow.
The muscle that extends the forearm when doing push-ups is the ___________.
The muscle(s) that adduct(s) the humerus is/are the __________.
anterior deltoid and posterior deltoid
coracobrachialis and anterior deltoid
pectoralis major and latissimus dorsi
middle deltoid and supraspinatus
coracobrachialis and latissimus dorsi.
When doing squat exercises, rising up from the squat to an erect position uses the _________.
all of the above
Each of the following muscles acts to flex the lower leg except the ____________.
If you bruised your gluteus maximus, you would expect to experience discomfort when ___________.
flexing your hip.
extending your hip.
abducting your hip.
laterally rotating your hip.
extending and laterally rotating the hip.
Jill suffers a severe cut that severs the tendon that attaches the insertion of the flexor carpi ulnaris. As a result of this injury, what action is difficult for her to perform?
flex her forearm
flex her elbow
flex her ulna
flex of her hand
flex her shoulder
Pushing against a locked door is an example of _________.
An isometric contraction
An opposing muscle contraction
An eccentric contraction
A concentric contraction
An isotonic contraction
The bicep inserts on the ______________ and the quadriceps insert _______________.
Coracoid process of scapula; ischial tuberosity
Radial tuberosity; tibial tuberosity via the patellar tendon
Base of the 5th metacarpal; anterior superior iliac spine
Olecranon of ulna; lateral condyle of the femur