Chapter 10 Section 10.05 Swiger

Select the muscle that belongs to the medial compartment of the thigh.

Adductor longus

All of the muscles that originate from the medial epicondyle of the humerus have one of two functions. Which of the following pairs is correct?

All of the muscles that originate from the medial epicondyle of the humerus are involved in either wrist flexion and forearm pronation.

Select the muscle compartment that flexes the wrist and fingers.

Anterior compartment of forearm

Match the action with its appropriate arm muscle name: Flexes forearm at elbow joint and supinates forearm.

Biceps brachii

Match the action on the leg/knee joint with its appropriate muscle: Flexes and laterally rotates leg at knee.

Biceps femoris

Select the muscle that belongs to the hamstrings of the posterior thigh.

Biceps femoris

Which of the following is not a rotator cuff muscle?

Deltoid

Damage to which of the following muscles would hinder inspiration?

External intercostals

Match the action on the ankle/foot with its appropriate muscle: Plantar flexes and everts the foot.

Fibularis (peroneus) longus and brevis

Which of the following adducts the hand?

Flexor carpi ulnaris

Match the thigh/leg movement with its appropriate muscle name: Adducts thigh, and flexes and medially rotates leg.

Gracilis

A nurse can facilitate respiratory functioning by encouraging deep breathing exercises such as diaphragmatic breathing. What is diaphragmatic breathing?

It is the alternating contraction and relaxation of the diaphragm, causing an increase in pressure in the abdominopelvic cavity and facilitating blood flow to the heart.

Match the action with its appropriate muscle name: Extends, adducts, and rotates arm medially.

Latissimus dorsi

Donna was rushing to class and slipped on a patch of ice and fell backward. An x-ray revealed a broken coccyx. All the associated muscles were bruised. Which muscles were they?

Levator ani and coccygeus

A young pregnant woman went to a childbirth class and the instructor informed them about strengthening the muscles of the pelvic floor. What are these muscles, and why should she strengthen them?

Levator ani and coccygeus; strengthening these muscles helps in the delivery of the child by resisting downward forces when "pushing."

Match the muscle action involving mastication with its appropriate muscle name: Protracts the mandible and moves the mandible side to side.

Medial pterygoid

Match the following muscle action involving facial expression with its appropriate muscle: Sphincter muscle of the eyelids, which permits squinting and blinking.

Orbicularis oculi

Match the thigh/leg movement with its appropriate muscle name: Flexes and adducts thigh.

Pectineus

Match the thigh/leg movement with its appropriate muscle name: Rotates thigh laterally and stabilizes hip joint.

Quadratus femoris

Which muscle flexes and rotates the lumbar region of the vertebral column? This muscle extends vertically from the lower sternum to the pubis.

Rectus abdominis

Match the action on the leg/knee joint with its appropriate muscle: Extends leg at knee and flexes thigh at hip.

Rectus femoris

Match the action on the leg/knee joint with its appropriate muscle: Flexes, abducts, and laterally rotates thigh.

Sartorius

Match the following description of muscles that move the head and trunk with its appropriate name: Composite muscle forming part of the deep layer of intrinsic back muscles, located along the back from thoracic region to head.

Semispinalis capitis, cervicis, and thoracis

Select the muscle that is sometimes called the "boxer's muscle" because its actions include horizontal arm movements used for pushing and punching.

Serratus anterior

Match the action on the ankle/foot with its appropriate muscle: Plantar flexes foot and is important in posture.

Soleus

Match the following description of muscles that move the head and trunk with its appropriate name: Broad two-part superficial muscle that lies on the back of neck between base of skull and the upper thoracic vertebrae.

Splenius capitis and cervicis

Match the following description of muscles that move the head and trunk with its appropriate name: Flexes and laterally rotates the head.

Sternocleidomastoid

Muscle spasms of the back often are due to the erector spinae contraction. T/F

T

The broadest muscle of the back is the latissimus dorsi. T/F

T

The diaphragm flattens and moves inferiorly during inspiration. T/F

T

Which muscle is innervated by the S3 nerve, S4 nerve, and the inferior rectal nerve (a branch of the pudendal nerve)?

The levator ani muscles are innervated by several nerves including the pudendal, while the other muscles indicated are innervated by the pudendal nerve alone.

Which muscle provides a guide to the position of the radial artery at the wrist for taking the pulse?

The radial pulse can easily be found between the tendons of flexor carpi radialis and brachioradialis.

Which of the following muscles divides the neck into two triangles?

The sternocleidomastoid

Which muscle is an antagonist to the biceps brachii muscle?

The triceps brachii muscle extends the forearm, while the biceps brachii flexes it, making them antagonistic.

Which of the following describes the suprahyoid muscles?

They are a group of muscles that lie superior to the hyoid bone and help form the floor of the oral cavity.

Which muscle laterally parallels the sharp anterior margin of the tibia?

Tibialis anterior

Select the muscle that belongs to the quadriceps femoris of the anterior compartment of the thigh.

Vastus medialis

The __________ assists the triceps brachii in forearm extension.

anconeus

The major abductor muscle of the upper arm is the __________.

deltoid

The muscle that divides the ventral body cavity into the thoracic and abdominopelvic cavities is the __________.

diaphragm

The muscular wall of the abdomen is in part composed of __________.

external oblique and rectus muscles

The abnormal protrusion of the small intestine through a weak point in the muscle of the abdominal wall is called a ________.

hernia

The __________ nerves innervate all of the extrinsic tongue muscles.

hypoglossal

The prime mover for flexion of the thigh is the __________ muscle.

iliopsoas

The external intercostal muscles are used primarily in __________.

inhalation

Which muscle(s) is (are) contracted to exhale forcibly?

internal intercostals and rectus abdominus

What is the name and origin of the muscle at A?

ischiocavernosus; ischial tuberosities The ischiocavernosus retards venous drainage and maintains the erection of the penis or clitoris. It originates at the ischial tuberosities and inserts into the crura of the penis or clitoris.

Which of the following is not a muscle primarily involved in the breathing process? external intercostal diaphragm latissimus dorsi internal intercostal

latissimus dorsi

Which of the following muscles is not a rotator cuff muscle? levator scapulae subscapularis teres minor supraspinatus

levator scapulae

Which of the following muscles fixes and depresses the ribs and stabilizes the pelvis during walking?

rectus abdominis

Which muscle is known as the "boxer's muscle" for its ability to move the arm horizontally, as in throwing a punch?

serratus anterior

Which of these muscles is visible in the figure but NOT indicated by a letter?

serratus anterior

The ________ is a synergist of the latissimus dorsi; it extends, medially rotates, and adducts the humerus.

teres major

Which of the following is NOT a rotator cuff muscle? supraspinatus infraspinatus teres major subscapularis

teres major

Tennis players often complain about pain in the arm (forearm) that swings the racquet. What muscle is usually strained under these conditions?

the brachioradialis

Which of the following muscles does the phrenic nerve innervate? the internal intercostals the external intercostals the diaphragm the sternocleidomastoid muscles

the diaphragm

Where are the origins of most of the muscles that move the fingers?

the forearm

Which group of muscles elevates the first two ribs and flexes and rotates the neck?

the scalenes

The __________ is the prime mover of dorsiflexion of the foot.

tibialis anterior

The supraspinatus is named for its location on the posterior aspect of the scapula above the spine. What is its action?

to initiate abduction of the arm, to stabilize the shoulder joint and to help prevent downward dislocation of the humerus

The ________ runs deep to the internal oblique.

transversus abdominis

The main forearm extensor is the __________.

triceps brachii

________ is a powerful forearm extensor.

triceps brachii