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
