Chapter 6 - anatomy

Gastrocnemius

"Toe dancer's" muscle; a two-bellied muscle of the calf

Flexed

In climbing stairs, the hip and knee of the forward leg are both blank.

anterior, posteriorly, knee

Most flexor muscles are located on the blank aspect of the body; most extensors are located blank. An exception to this generalization is the extensor-flexor musculature of the blank.

Rotation

Moving the head to signify "no" is

Deltoid

Shoulder muscle that is the antagonist of the muscle just described

forearm

The extrinsic muscles of the hand originate on the blank.

quadriceps

The insertion tendon of the blank group contains a large sesamoid bone, the patella.

Rectus abdominis

The name means "straight muscle of the abdomen"

Tibialis anterior

Inverts and dorsiflexes the foot

Synergist

Performs the same movement as the prime mover

Sternocleidomastoid

Acting alone, each muscle of this pair turns the head toward the opposite shoulder

Pronation

Action that moves the distal end of the radius across the ulna is

Prime mover

Agonist

Diaphragm

An unpaired muscle that acts with the muscles named immediately above to accomplish inspiration

Internal oblique, transversus abdominis

Besides the two abdominal muscles (pairs) named above, two muscle pairs that help form the natural abdominal girdle

Circumduction

Consider all the movements of which the arm is capable. One often used for strengthening all the upper arm and shoulder muscles is blank.

External intercostal

Deep muscles of the thorax that promote the inspiratory phase of breathing

Hiopsoas

Hip flexor, deep in pelvis; a composite of two muscles

Fixator

Immobilizes the origin of a prime mover

Flexion, extension

In running, the action at the hip point is blank in reference to the leg moving forward and blank in reference to the leg in the posterior position.

Latissimus dorsi

Large paired superficial muscle of the lower back

Soleus

Like the two-bellied muscle that lies over it, this muscle is a plantar flexor

Fibularis muscles

Muscle group of the lateral leg; plantar flex and evert the foot

Adductors

Muscle group that allows you to draw your legs to the midline of your body, as when standing at attention

Quadriceps

Muscle group that extends the knee

Hamstrings

Muscle group that extends the thigh and flexes the knee

Latissimus dorsi

Muscle that adducts the shoulder and causes extension of the shoulder joint

Biceps brachii

Muscle that allows you to bend (flex) the elbow

Trapezius

Muscle that allows you to shrug your shoulders or extend your head

Triceps brachii

Muscle that extends the elbow

Extensor digitorum

Muscle that extends the fingers

Flexor digitorum superficialis

Muscle that flexes the fingers

External oblique

Part of the abdominal girdle; forms the external lateral walls of the abdomen

Fixator

Postural muscles for the most part

Deltoid

Powerful shoulder abductor, used to raise the arm overhead

Deltoid

Prime mover for shoulder abduction

Pectoralis major

Prime mover for shoulder flexion and adduction

Erector spinae

Prime mover of back extension; a deep composite muscle consisting of three columns

Sternocleidomastoid

Prime mover of head flexion; a two-headed muscle

Masseter

Prime mover of jaw closure

Abduction

Raising the arms laterally away from the body is called blank of the arms.

Antagonist

Reverses and/or opposes the action of a prime mover

Gluteus medius

Smaller hip muscle commonly used as an injection site

Synergist

Stabilizes the joint so that the prime mover can act at more distal joints

Plantar flexion

Standing on your toes as in ballet is blank of the foot.

Sartorius

Strap-like muscle that is a weak thigh flexor; the "tailor's muscle"

Temporalis

Synergist muscle for jaw closure

Orbicularis oris

The "kissing" muscle

proximal

The bulk of the tissue of a muscle tends to lie blank to the part of the body it causes to move.

flex

The pectoralis major and deltoid muscles act synergistically to blank the arm.

calcaneal (achilles)

The triceps surae insert in common into the blank tendon.

deltoid, gluteus maximus, gluteus medius

Three muscles that are commonly used for intramuscular injections in adults

Adduct

To keep your seat when riding a horse, the tendency is to blank your thighs.

Zygomaticus

Used in smiling

Orbicularis oculi

Used in winking

Gluteus maximus

Used to extend the hip when climbing the stairs

Frontalis

Used to form horizontal frown crease on forehead

Buccinator

Used to suck in your cheeks

Rotation

Using a screwdriver with a straight arm requires blank of them arm.

Dorsiflexion

Walking on your heels is

Extension

When kicking a football, the action at the knee is blank.

Circumduction

Winding up for a pitch as in baseball can properly be called

Flexor carpi ulnaris

Wrist flexor that follows the ulna

Flexion

You have just touched your chin to your chest; this is blank of the neck.