Chapter 16 & 17 Flashcards
All of the following are rotator cuff muscles except: A. Deltoid B. Infraspinatus C. Supraspinatus D. Teres Minor
A. Deltoid
The muscle the shrugs the shoulder is the: A. Sternocleidomastoid B. Deltoid C. Trapezius D. Pectoralis Minor
C. Trapezius
The posterior arm muscle that extends the forearm is the: A. Triceps Brachii B. Triceps Surae C. Brachialis D. Biceps Brachii
A. Triceps Brachii
The olecranon of the ulna is a site of insertion for the: A. Biceps Brachii B. Brachialis C. Brachioradialis D. Triceps Brachii
D. Triceps Brachii
True or False
______________ Intrinsic muscles of the hand originate on the forearm and insert on the metacarpals.
False
True or False
______________ Carpal tunnel syndrome affects the median nerve.
True
True or False
______________ The deltoid is a good example of a multifunctional muscle.
True
True or False
_______________ The pectoralis major flexes the upper arm.
True
True or False
_______________ The biceps brachii is an extensor muscle.
False
The muscles of the quadriceps femoris include all of the following except: A. Vastus Intermedius B. Vastus Medialis C. Vastus Lateralis D. Vastus Femoris
D. Vastus Femoris
The anterior superior iliac spine is the site of origin for the: A. Sartorious B. Rectus Femoris C. Gracilis D. Iliacus
A. Sartorious
A common site for intramuscular injections is the: A. Gluteus Maximus B. Gluteus Minimus C. Gluteus Medius D. Tensor Fasciae Latae
C. Gluteus Medius
Plantar flexion of the foot is achieved by the: A. Tibialis Anterior B. Tibialis Posterior C. Peroneus Brevis D. Soleus
D. Soleus
The muscles of the hamstring include all of the following except the: A. Iliopsoas B. Semitendinosus C. Semimembranosus D. Biceps Femoris
A. Iliopsoas
True or False
______________ The Achilles’ tendon is common to both gastrocnemius and soleus.
True
True of False
_______________ The iliopsoas is composed solely of the psoas major and the iliacus.
False
True or False
______________ The vastus intermedius originates on the posterior surface of the femur.
False
APPLYING WHAT YOU KNOW
Mr. Lynch spends hours typing on his computer. As of late, he is experiencing weakness, pain, and tingling in the palm and radial aspect of the hand. What condition may he be experiencing? Which anatomical structures are most likely involved? Which options for treatment are available?
- Carpal tunnel syndrome .
- The wrist, hand, and fingers are affected due to tenosynovitis. Pain may radiate to the forearm and shoulder.
- Injections of anti inflammatory agents or surgical removal of tissue pressing on median nerve.
APPLYING WHAT YOU KNOW
The nurse was preparing an injection for Mrs. The amount to be given was 2 mL. What are of the body will the nurse most likely select for the injection?
Deltoid area.
\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ Trapezius. A. Flexor B. Extensor C. Abductor D. Adductor E. Rotator F. Dorsiflexor or plantar flexor
B. Extensor
\_\_\_\_\_\_\_\_\_\_\_\_\_ Rhomboid major. A. Flexor B. Extensor C. Abductor D. Adductor E. Rotator F. Dorsiflexoror or plantar flexor
E. Rotator
\_\_\_\_\_\_\_\_\_\_\_\_ Gastrocnemius. A. Flexor B. Extensor C. Abductor D. Adductor E. Rotator F. Dorsiflexor or plantar flexor
A. Flexor and B. Extensor
\_\_\_\_\_\_\_\_\_\_\_\_\_\_ Biceps brachii. A. Flexor B. Extensor C. Abductor D. Adductor E. Rotator F. Dorsiflexor or plantar flexor
A. Flexor
\_\_\_\_\_\_\_\_\_\_\_\_ Gluteus medius. A. Flexor B. Extensor C. Abductor D. Adductor E. Rotator F. Dorsiflexor or plantar flexor
C. Abductor and E. Rotator
\_\_\_\_\_\_\_\_\_\_\_\_ Soleus. A. Flexor B. Extensor C. Abductor D. Adductor E. Rotator F. Dorsiflexor or plantar flexor
F. Dorsiflexor or plantar flexor
\_\_\_\_\_\_\_\_\_\_\_\_ Iliopsoas. A. Flexor B. Extensor C. Abductor D. Adductor E. Rotator F. Dorsiflexor or plantar flexor
A. Flexor
\_\_\_\_\_\_\_\_\_\_\_\_ Pectoralis major. A. Flexor B. Extensor C. Abductor D. Adductor E. Rotator F. Dorsiflexor or plantar flexor
A. Flexor and D. Adductor
\_\_\_\_\_\_\_\_\_\_\_\_\_ Gluteus maximus. A. Flexor B. Extensor C. Abductor D. Adductor E. Rotator F. Dorsiflexor or plantar flexor
B. Extensor and E. Rotator
\_\_\_\_\_\_\_\_\_\_\_\_ Triceps brachii. A. Flexor B. Extensor C. Abductor D. Adductor E. Rotator F. Dorsiflexor or plantar flexor
B. Extensor
\_\_\_\_\_\_\_\_\_\_\_\_\_ Deltoid. A. Flexor B. Extensor C. Abductor D. Adductor E. Rotator F. Dorsiflexor or plantar flexor
A. Flexor and B. Extensor and C. Abductor
\_\_\_\_\_\_\_\_\_\_\_\_ Fibularis longus. A. Flexor B. Extensor C. Abductor D. Adductor E. Rotator F. Dorsiflexor or plantar flexor
B. Extensor
\_\_\_\_\_\_\_\_\_\_\_\_ Gracilis A. Flexor B. Extensor C. Abductor D. Adductor E. Rotator F. Dorsiflexor or plantar flexor
A. Flexor and D. Adductor
Fill in the blanks:
Muscles that are responsible for such movements as dorsiflexion, plantar flexion, inversion, and eversion of the foot are the _____________ _________________ _______________.
Extrinsic foot muscles.
Another common name for the calcaneal tendon is the ___________ tendon.
Achilles.
The rotator muscles are: \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_
Supraspinatus.
Infraspinatus.
Teres Minor.
Subscapularis.
If less than 2 mL of medication is being injected into the muscle, the common muscle that is preferred at the site is the __________________ muscle.
Deltoid
17. Which of the following is not a general function of muscle tissue? A. Movement B. Protection C. Heat production D. Posture
B. Protection
- The skeletal muscle fiber characteristics of excitability directly results in these cells being capable of:
A. Responding to nerve signals
B. Shortening
C. Returning to resting length after contracting
D. Producing heat
A. Responding to nerve signals
17. The correct order of arrangement of skeletal muscle cells, from largest to smallest, is: A. Fiber, Myofibril, Myofilament B. Myofibril, Myofilament, Fiber C. Myofilament, Myofibril, Fiber D. Fiber, Myofilament, Myofibril
A. Fiber, Myofibril, Myofilament
- Sarcoplasmic reticulum is:
A. A system of transverse tubules that extend at a right angle to the long axis of the cell.
B. A segment of the myofibril between two successive Z lines.
C. A unique name for the plasma membrane of a muscle fiber.
D. None of the above.
D. None of the above.
17. Which of the following are myofilament proteins? A. Troponin B. Tropomyosin C. A and B D. None of the above
C. A and B
17. The contractile unit of a myofibril is the: A. Sarcomere B. Triad C. Sarcolemma D. Cross-bridge
A. Sarcomere
- The chief function of the T tubule is to:
A. Provide nutrients to the muscle fiber.
B. Allow the fiber to contract.
C. Allow the electrical signal to move deep into the cell.
D. Allow the generation of new muscle fibers.
C. Allow the electrical signal to move deep into the cell.
17. Myosin heads are also called: A. Cross-bridges B. Motor endplates C. Synapses D. Motor neurons
A. Cross-bridges
17. During muscle contraction, Ca++ is released from the: A. Synaptic cleft B. Mitochondria C. Sarcoplasmic reticulum D. Sarcoplasm
C. Sarcoplasmic reticulum
17. The region of a muscle fiber where a motor neuron connects to the muscle fiber is called the: A. Synaptic vesicle B. Motor endplate C. H band D. None of the above
B. Motor endplate
- The principal component(s) of a motor unit is/are:
A. One somatic motor neuron
B. The muscle fibers supplied by a somatic motor neuron
C. None of the above
D. Both A and B
D. Both A and B
17. The staircase phenomenon is also know as: A. Tetanus B. Electromyography C. Wave summation D. Treppe
D. Treppe
17. Skeletal muscles are innervated by: A. Somatic motor neurons B. Autonomic motor neurons C. Both A and B D. Internal stimulation
A. Somatic motor neurons
17. Which of the following statements concerning isometric contractions is true? A. The length of the muscle changes. B. Muscle tension decreases. C. Joint movements are swift. D. Muscle length remains constant.
D. Muscle length remains constant.
17. Psychological muscle fatigue is caused by: A. Relative lack of ATP B. Oxygen debt C. Lack of will D. None of the above
A. Relative lack of ATP
17. Increase in muscle size is called: A. Hyperplasia B. Atrophy C. Hypertrophy D. Treppe
C. Hypertrophy
17. Endurance training is also called: A. Isometrics B. Hypertrophy C. Aerobic training D. Anaerobic training
C. Aerobic training
17. When a muscle does not shorten and no movement results, the contraction is: A. Isometric B. Isotonic C. Twitch D. Tetanic
A. Isometric
17. Pushing against a wall is an example of which type of contraction? A. Isotonic B. Isometric C. Twitch D. Tetanic
B. Isometric
17. Prolonged inactivity causes muscles to shrink in mass, a condition called: A. Hypertrophy B. Disuse atrophy C. Paralysis D. Muscle fatigue
B. Disuse atrophy
17. Muscle fibers usually contract to about \_\_\_\_% of their starting length. A. 50 B. 60 C. 70 D. 80
D. 80
- Which statement is true of smooth muscle?
A. It lines the walls of many hollow organs.
B. It is striated.
C. It is voluntary.
D. There are many T tubules throughout smooth muscle.
A. It lines the walls of many hollow organs.