Chapter 15 & 16 - Axial & Appendicular Muscles

When you shrug your shoulders, which of these muscles is responsible? A. trapezius B. triceps brachii C. biceps brachii D. serratus anterior

A. trapezius

The central body portion of the muscle is the A. lever. B. ligament. C. belly. D. tendon.

C. belly.

All of the following muscles are part of the rotator cuff muscles except the: A. Deltoid B. Infraspinatus C. Supraspinatus D. Teres minor

A. Deltoid The deltoid muscle abducts the upper arm and assists in the flexion and extension of the upper arm. The other muscles are part of the rotator cuff muscles. A&P: Chapter 15 Section: Upper Extremity Muscles

The pectoralis major muscle: A. Flexes the upper arm B. Extends the thigh C. Abducts the lower arm D. Adducts the lower arm

A. Flexes the upper arm The pectoralis major muscle flexes the upper arm. The arm is attached to the thorax by the pectoralis major muscle and the latissimus dorsi. A&P: Chapter 16 Section: Upper Extremity Muscles

Which of the following is not a muscle that moves the foot? A. Sartorius B. Peroneus longus C. Tibialis anterior D. Soleus

A. Sartorius The sartorius muscle flexes the thigh and rotates the lower leg. It does not move the foot. A&P: Chapter 16 Section: Lower Extremity Muscles

The common tendon of the gastrocnemius and soleus is called the A. calcaneal tendon. B. talus tendon. C. tibial tendon. D. digitorum tendon

A. calcaneal tendon.

The individual muscle fibers are covered by a connective tissue membrane called the A. endomysium. B. perimysium. C. aponeurosis. D. tendon.

A. endomysium.

Which muscle group extends the vertebral column and also flexes the back laterally and rotates it a little? A. erector spinae B. rectus abdominis C. serratus anterior D. levator ani

A. erector spinae

Muscles that move the wrist, hand, and fingers can be A. extrinsic or intrinsic. B. intrinsic but not extrinsic. C. extrinsic but not intrinsic. D. only extrinsic.

A. extrinsic or intrinsic.

The occipitofrontalis muscle can be found in the A. face. B. upper arm. C. lower leg. D. cranium.

A. face.

What action is provided by the contraction of both sternocleidomastoid muscles? A. flexion of the head B. flexion of the trunk C. bending of the head laterally D. extension of the head

A. flexion of the head

Which of the following muscles are referred to as the "rotator cuff" muscles? A. infraspinatus, supraspinatus, subscapularis, and teres minor B. levator scapulae, infraspinatus, supraspinatus, and subscapularis C. infraspinatus, supraspinatus, subscapularis, and trapezius D. serratus anterior, infraspinatus, subscapularis, and teres minor

A. infraspinatus, supraspinatus, subscapularis, and teres minor

Muscles that move the forearm include which of the following? A. biceps brachii B. All of these are correct. C. pronator teres D. Brachioradialis

B. All of these are correct.

What would be the effect of poor posture? A. puts more strain on ligaments B. All of these are correct. C. puts abnormal strain on bones D. leads to fatigue E. interferes with respiration, heart action, and digestion

B. All of these are correct.

Which of the following is not a muscle of the quadriceps femoris group? A. Rectus femoris B. Biceps femoris C. Vastus medialis D. Vastus intermedius

B. Biceps femoris The biceps femoris is part of the hamstring muscle group. A&P: Chapter 16 Section: Lower Extremity Muscles

Abduction means: A. Moving a part toward the midline of the body B. Moving a part away from the midline of the body C. Movement around a longitudinal axis D. Movement opposite of flexion

B. Moving a part away from the midline of the body Abduction means moving a part away from the midline of the body. Adduction means moving a part toward the midline of the body. A&P: Chapter 15 Section: Skeletal Muscle Structure

The external and internal oblique muscles can be found in the A. face. B. abdominal wall. C. pelvic floor. D. cranium.

B. abdominal wall.

The tibialis anterior, fibularis tertius, and extensor digitorum longus are all A. dorsal extensors of the lower leg. B. dorsal flexors of the foot. C. dorsal flexors of the lower leg. D. dorsal extensors of the foot.

B. dorsal flexors of the foot.

The fibrous connective tissue that surrounds the entire muscle and is outside the epimysium and tendon is called the A. tendon sheath. B. fascia. C. endomysium. D. aponeurosis.

B. fascia.

In most instances, the muscles located on the anterior surface of the forearm are _____ and those on the posterior surface are _____ of the wrist, hand, and fingers. A. abductors, adductors B. flexors, extensors C. extensors, flexors D. rotators, pronators

B. flexors, extensors

The muscle that encircles the urethra in both sexes and helps control urine flow is the A. coccygeus. B. urethral sphincter. C. bulbospongiosus. D. ischiocavernosus.

B. urethral sphincter.

Which of these muscles has a role in mastication? A. pterygoids B. masseter C. All of these are correct. D. temporalis E. buccinators

C. All of these are correct.

When an athlete injures a muscle of the hamstring group, the injury is on the: A. Upper arm B. Posterior lower leg C. Posterior thigh D. Anterior thigh

C. Posterior thigh The hamstring group of muscles is located on the posterior thigh and consists of the semitendinosus, the biceps femoris, and the semimembranosus muscles.A&P: Chapter 16 Section: Lower Extremity Muscles

Which of the following muscles has fibers that lie across the region and form the innermost layer of the anterolateral abdominal walls? A. Rectus abdominis B. External oblique C. Transverse abdominis D. Internal intercostals

C. Transverse abdominis The transverse abdominis has fibers on a transverse plane and is a muscle named for the direction of the fibers. A&P: Chapter 15 Section: Trunk Muscles

The term _____ is used to describe a muscle that directly performs a specific movement. A. synergist B. antagonist C. agonist D. fixator

C. agonist

The gluteal muscle that is often the site of intramuscular injections is the A. gluteus maximus. B. tensor fasciae latae. C. gluteus medius. D. gluteus minimus.

C. gluteus medius.

Which large group of muscles flexes the thigh and extends the leg? A. hamstrings B. gluteal C. quadriceps D. peroneus

C. quadriceps

Which of the following is NOT a muscle of the hamstring group? A. biceps femoris B. semimembranosus C. rectus femoris D. semitendinosus

C. rectus femoris

The muscle that helps hold the scapula against the thorax and is useful in pushing or punching movements is the A. trapezius. B. rhomboid major. C. serratus anterior. D. deltoid.

C. serratus anterior.

Which muscle allows us to chew our food? A. Orbicularis oris B. Trapezius C. Sternocleidomastoid D. Masseter

D. Masseter The masseter and temporalis are the two largest muscles responsible for producing the chewing movements. A&P: Chapter 15 Section: Muscles of the Head and Neck

Which of the following muscles does not move the upper arm? A. Pectoralis major B. Latissimus dorsi C. Deltoid D. Trapezius

D. Trapezius The trapezius muscle extends the head and neck to raise and lower the shoulders and shrug them. A&P: Chapter 16 Section: Upper Extremity Muscles

The muscle that is on the posterior surface of the upper arm is the: A. Latissimus dorsi B. Soleus C. Iliopsoas D. Triceps brachii

D. Triceps brachii The triceps brachii lies on the posterior surface of the upper arm. It has three heads of origin from the shoulder girdle and inserts into the olecranon of the ulna. A&P: Chapter 16 Section: Upper Extremity Muscles

Often, superficial muscles are named according to A. location. B. function. C. shape and/or size. D. all of the above.

D. all of the above.

Question 10 of 15 During inspiration, the _____ flatten(s), thus increasing the size and volume of the thoracic cavity. A. external intercostals B. splenius capitis C. internal intercostals D. diaphragm

D. diaphragm

What is the tough band of connective tissue called that extends from the xiphoid process to the pubis? A. rectus sheath B. thoracolumbar fascia C. tendinous intersection D. linea alba

D. linea alba

Which muscle allows the thumb to be drawn across the palm to touch the tip of any finger? A. lumbrical B. tensor fasciae latae C. interosseous D. opponens pollicis

D. opponens pollicis

The point of attachment that does not move when the muscle contracts is the A. insertion. B. tendon. C. ligament. D. origin.

D. origin.

The continuous low level of sustained contraction maintained by all skeletal muscles is muscle A. posture. B. tetanus. C. summation. D. tone.

D. tone.

Muscles exert their pull against gravity by virtue of a property called A. elasticity. B. summation. C. contractibility. D. tonicity.

D. tonicity.

The innermost muscle of the abdominal wall is the A. rectus abdominis. B. external oblique. C. internal oblique. D. transverse abdominis.

D. transverse abdominis.

The epimysium, endomysium, and perimysium all may be continuous with ligaments. True False

False Ligaments connect bones to bones. The epimysium, perimysium, and endomysium of a muscle may be continuous with fibrous tissue that extends from the muscle as a tendon or with a flat sheet of connective tissue called an aponeurosis. A&P: Chapter 15 Section: Skeletal Muscle Structure

A muscle can have only one origin attachment and one insertion attachment. True False

False Many muscles have multiple points of origin or insertion. A&P: Chapter 15 Section: Skeletal Muscle Structure

The gluteus muscles are examples of muscles that are named because of location. True False

True Gluteus means "buttock," and thus the gluteus muscles are named for the muscles of the buttocks. A&P: Chapter 15 Section: How Muscles Are Named

Muscles maintain posture by the property of tonicity. True False

True Muscles exert a pull against gravity by virtue of tonicity. Muscle tone, or tonicity, literally means tension and refers to the continuous, low level of sustained contraction maintained by all skeletal muscles. A&P: Chapter 16 Section: Posture

When a muscle contracts, the bone moved is the bone of insertion. True False

True The attachment to the more movable bone is called the muscle's insertion. A&P: Chapter 15 Section: Skeletal Muscle Structure

The Achilles tendon is common to both the gastrocnemius and soleus. True False

True The common tendon of the gastrocnemius and soleus is called the calcaneal, or Achilles, tendon. It inserts into the calcaneus, or heel bone. A&P: Chapter 15 Section: Lower Extremity Muscles

Agonist and prime mover are interchangeable terms. True False

True The prime mover, or agonist, is used to describe a muscle or group of muscles that directly performs a specific movement. A&P: Chapter 15 Section: Skeletal Muscle Structure

Muscle cells and muscle fibers are interchangeable terms. True False

True The terms for the highly specialized skeletal muscle cells and muscle fibers are interchangeable A&P: Chapter 15 Section: Skeletal Muscle Structure

First- and second-class levers are not as common in the body as third-class levers. True False

True The third-class levers permit rapid and extensive movement and are the most common type of lever found in the body. A&P: Chapter 15 Section: Skeletal Muscle Structure

There are more than 600 muscles in the body. True False

True There are more than 600 muscles in the body, which make up approximately 40 to 50 percent of our total body weight. A&P: Chapter 15 Section: Introduction