Chapter 10 Hmwk and Quiz questions

Which of following statements is correct regarding muscles position and its relate action? A muscle that crosses the ankle joint anteriorly produces flexion. The pectoralis major crosses on the anterior side of the shoulder joint to produce extension. The latissimus dorsi crosses the posterior side of the shoulder joint to produce flexion. A muscle that crosses on the posterior side of the knee joint produces flexion.

A muscle that crosses on the posterior side of the knee joint produces flexion.

Although all skeletal muscles have different shapes, the fascicle arrangement of each muscle is exactly the same. True False

False

In general, a muscle that crosses on the anterior side of a joint produces ________. flexion abduction extension adduction

Flexion

When the term biceps, triceps, or quadriceps forms part of a muscle's name, what does it tell you about the muscle? The muscle has two, three, or four functions, respectively. The muscle is able to change direction twice, three times, or four times faster than other muscles, respectively. The muscle has two, three, or four insertions, respectively. The muscle has two, three, or four origins, respectively.

The muscle has two, three, or four origins, respectively.

Which of the following statements is correct regarding muscle position and its related action? A muscle that crosses on the lateral side of the hip joint produces adduction. The deltoid crosses the shoulder joint medially to produce abduction. A muscle that crosses the ankle joint posteriorly produces adduction. The teres major crosses on the medial side of the shoulder joint to produce adduction.

The teres major crosses on the medial side of the shoulder joint to produce adduction.

Muscle spasms of the back often are due to the erector spinae contraction. True False

True

Muscles connecting to the hyoid bone are important for swallowing and speech. True False

True

The broadest muscle of the back is the latissimus dorsi. True False

True

The diaphragm flattens and moves inferiorly during inspiration. True False

True

The muscles of facial expression insert into skin or other muscles, not bones. True False

True

What is a muscle that provides the major force for producing a specific movement called? an agonist (prime mover) a synergist an antagonist a fixator

an agonist (prime mover)

A muscle that opposes, or reverses, a particular movement is a(n) ________. agonist (prime mover) antagonist fixator synergist

antagonist

Which functional group has the major responsibility for countering a specific movement? fixators synergists antagonists agonists

antagonists

Tha hamstrings consists of three muscles located on the posterior thigh. Why is it recommended that a caregiver squat using these muscles to help a patient sit down? because it forcibly flexes the caregiver's thighs because it permits the patient to be farther away because it eliminates lifting belt use when moving adults because it prevents back muscle strain

because it prevents back muscle strain

Which muscles act as antagonists to the muscles responsible for trunk flexion? trapezius and latissimus dorsi rectus abdominis erector spinae muscle group pectoralis minor, external obliques, and internal obliques

erector spinae muscle group

Which muscles are most responsible for the inspiration phase of normal breathing? pectoralis minor and subclavius external and internal obliques external intercostal muscles and diaphragm internal and external intercostal muscles

external intercostal muscles and diaphragm

Which superficial flexor muscle of the forearm is the most lateral? palmaris longus flexor digitorum superficialis flexor carpi ulnaris flexor carpi radialis

flexor carpi radialis

Which muscle is a superficial anterior flexor muscle? flexor pollicis longus flexor digiti minimi brevis flexor digitorum superficialis flexor digitorum profundus

flexor digitorum superficialis

Which muscle of the wrist and fingers is a deep anterior flexor? flexor digitorum superficialis palmaris longus flexor pollicis longus flexor carpi ulnaris

flexor pollicis longus

Which of the following muscles is named for its size? sternocleidomastoid deltoid gluteus maximus trapezius

gluteus maximus

Which of the following muscles is most responsible for moving the leg laterally away from the body, such as when taking a side step? gluteus medius biceps femoris adductor magnus gluteus maximus

gluteus medius

Which muscle is a synergist of the adductor group for adducting the thighs? gluteus maximus biceps femoris gracilis sartorius

gracilis

Which major muscles of the trunk insert on the medial edge of the scapula to draw the scapulae together and to tilt the glenoid cavity downward? trapezius and latissimus dorsi subclavius and external intercostals levator scapulae and rhomboids pectoralis minor and serratus anterior

levator scapulae and rhomboids

An insertion of the fibularis longus is the __________. distal phalanx of digit one base of metatarsal five base of metatarsal two medial cuneiform

medial cuneiform

The palmaris longus inserts on the __________. medial epicondyle of the humerus bodies of phalanges 2-5 palmar aponeurosis bases of the second and third metacarpals

palmar aponeurosis

The interosseous membrane is located between the __________. radius and ulna humerus and radius humerus and ulna ulna and the carpal bones of the wrist

radius and ulna

Which of the following muscles of the trunk originates on the pubic crest? external obliques rectus abdominis transversus abdominis internal obliques

rectus abdominis

Which of the following muscles inserts on the tibia? gluteus medius sartorius adductus longus iliopsoas

sartorius

Which of the following muscles is NOT part of the muscle group known as the quadriceps femoris? vastus lateralis vastus intermedius rectus femoris sartorius

sartorius

The anterior muscles of the thigh that originate on the os coxae are __________. sartorius; rectus femoris sartorius; vastus medialis rectus femoris; vastus medialis vastus lateralis; vastus medialis

sartorius; rectus femoris

Why is the body position of both a post- surgical patient and the caregiver critical in performing a safe patient move from bed to chair? so that the caregiver can support patient's full body weight so that surgical wound stitches are not pulled apart because patients are not expected to exert any effort so that lifting leverage can be properly applied

so that lifting leverage can be properly applied

What type of muscle assists an agonist by causing a like movement or by stabilizing a joint over which an agonist acts? a synergist an agonist an antagonist a prime mover

synergist

What is the main factor that determines the power of a muscle? the number of neurons innervating it the shape the total number of muscle fibers (cells) available for contraction the length

the total number of muscle fibers (cells)

Which of these is not a way of classifying muscles? muscle location muscle shape the type of muscle fibers the type of action they cause

the type of muscle fibers