Chapter 10 - Muscular System
Your friend nods back and forth to you, making the yes motion. What lever system is being represented by this 'yes' motion? First-class lever Second-class lever Third-class lever
first-class lever
Your friend nods "yes" to you, going through flexion, extension and hyperextension. This movement at the fulcrum represents a A. First-class lever system B. Second-class lever system C. Third-class lever system D. Third-class lever system
first-class lever system
What is the action of the muscle labeled I? Extends the forearm at the elbow joint Flexes the forearm at the elbow joint Pronates the forearm at the radioulnar joints Abduct arm at shoulder joint Rotates arm at shoulder joint
flexes the forearm at the elbow joint
Most muscles cross at least one A. Tendon B. Joint C. Bone D. Ligament
joint
When the knee is being flexed, what is the fulcrum? Femur Weight of lower leg and foot Knee joint Tibia Contraction of quadriceps femoris
knee joint
Robert is training for a track race. He slightly tears his calcaneal tendon. The doctors prescribe P.R.I.C.E and give him medicine for inflammation and pain. Robert most likely has a Muscle sprain Muscle strain Repetitive strain injuries Plantar fasciitis Compartment syndrome
muscle strain
Where is the iliacus? A B C H I
A
What is the action for the muscle labeled G? Adducts and medially rotates arm at shoulder joint Abducting arm at shoulder joint Laterally rotates arm at shoulder joint Laterally rotates and extends arm at shoulder joint Extends forearm at elbow joint
Adducts and medially rotates arm at shoulder joint
Fascia over deltoid and pectoralis muscles are the origin of the muscle labeled R D C E G
D
Where is the orbicularis oculi? D E F G H
D
Which muscle in this figure produces the effort when you plantar flex to see over a taller person in front of your view? C D G H I
D
Where is the abductor digiti minimi? B C E F G
E
Which muscle in this figure allows radial deviation at the wrist joint? D E F G H
E
Which muscle in this figure is innervated by the trigeminal nerve? A B G I E
E
The tendon of which muscle in this figure is the most commonly damaged in rotator cuff injuries? E F G H B
F
Which muscle in this figure can abduct, medially and laterally rotate, and extend the arm at the glenohumeral joint? C D F G I
F
Which muscle originates at the anterior and lateral surfaces of the femoral body? D E F G H
F
Acting unilaterally, which muscle in this figure can rotate the vertebral column? D G H I E
G
Where is the adductor longus? H I J K L
H
Which letter identifies the splenius capitis in this figure? A B C H I
H
Based on its name, which of the following best described characteristics of the biceps femoris muscle? Has two insertions and found in lower leg Has two bellies and found in the upper leg Has two origins and found in the upper leg Has two origins and found in the upper arm
Has two origins and found in the upper leg
Protrusion of an organ through a structure that normally contains it is referred to as a Hernia Goiter Strain Sprain Hydrocele
Hernia
Where is the gracilis? H I J
I
Which muscle in this figure elevates and adducts the scapula? A F G H I
I
What terms can be used to describe forearm muscle movements at the write but NOT on the fingers at the interphalangeal joints? Flexion, extension, abduction, adduction Extension and flexion Abduction and adduction Flexion and adduction Pronation and supination
abduction and adduction
The muscle that serves as the "prime mover" during a movement is called the Antagonist Agonist Synergist Asynergist Fixator
agonist
Where is the semitendinosus? J K L M N
L
Which three muscles make up the hamstring? L, M, N E, F, G H, I, J I, J, K A, B, C
L, M, N
Which muscles help move the jaw during mastication? Masseter, temporalis, pterygoid (medial and lateral) Genioglossus, styloglossus, hyoglossus, palatoglossus Omohyoid, sternohyoid, thyrohyoid Sternocleidomastoid, longissimus capitis, splenius capitis Obicularis oris, levator labii superioris, depressor labii inferioris
Masseter, temporalis, pterygoid (medial and lateral)
Forcefully blowing through a trumpet would require contraction of which muscle? Buccinator Zygomaticus major Levator labii superioris Risorius Occipitofrontalis
buccinator
What is the insertion of the muscle labeled Q? Iliac crest and linea alba Cartilage of the fifth to seventh rib and xiphoid process Ribs 5-12 Central tendon
cartilage of the fifth to seventh rib and xiphoid process
Which fascicle arrangement, under voluntary or involuntary regulation of contraction, can control the opening or closing an orifice (opening)? Pennate Triangular Circular Parallel Fusiform
circular
During knee flexion, what is the effort? Knee joint Contraction of hamstring muscle group Weight of lower leg and foot Femur Tibia
contraction of hamstring muscle group
Motion will occur at a lever system when A. Resistance at the insertion B. The force of the contraction is not more than the load C. Effort at the origin exceeds the load D. Effort at the insertion exceeds the load
effort at the insertion exceeds the load
Tim ate something that is not agreeing with his digestive tract. He needs to go to the bathroom to defecate, but there is a line. What muscle helps keep the anal canal and anus closed? Bulbospongious Ishiocavernosus Obturator internus External anal sphincter Sphincter urethrovaginalis
external anal sphincter
The ___ are the synergist muscles to the diaphragm during inspiration. External intercostals External obliques Rectus abdominis Internal intercostals Internal obliques
external intercostals
If one is stabbed on the lateral side of the abdomen, what abdominal muscles, in order from superficial to deep, will the knife go through? Rectus abdominis, external oblique, internal oblique External oblique, internal oblique, transversus abdominis Transversus abdominis, rectus abdominis, external oblique External oblique, transversus abdominis, rectus abdominis Internal oblique, transversus abdominis, external oblique
external oblique, internal oblique, transversus abdominis
The attachment of a muscle's tendon to the stationary bone is called the ___; the attachment of the muscle's other tendon to the movable bone is called the ___. A. Origin, action B. Insertion, action C. Origin, insertion D. Insertion, origin
origin, insertion
Which motions can be made by the upper limbs but NOT by the lower limbs? Pronation and supination Flexion and extension Adduction and abduction Lateral and medial rotation
pronation and supination
Which of these muscles flexes the thigh at the hip joint alone, but extends the knee working in a group? Biceps femoris Rectus femoris Semitendinosus Semimembranosus Vastus lateralis
rectus femoris
Which of these muscles has fascicles parallel to the midline? External obliques Transverse abdominis Rectus femoris Biceps femoris Orbicularis oculi
rectus femoris
A 1 year old child presents with crossed eyes. While she seems fine and is able to recognize people, the patient is diagnosed with Nystagmus Strabismus Prebyopia Myopia Hypermetropia
stabismus
Which of these groups includes only muscles that move the humerus but do NOT originate on the axial skeleton? Serratus anterior, latissimus dorsi, trapezius Supraspinatus, teres major, teres minor, infraspinatus Deltoid, brachioradialis, latissimus dorsi, pectoralis major Trapezius, pectoralis minor, pectoralis major, triceps brachii Triceps brachii. Biceps brachii, brachioradialis
supraspinatus, teres major, teres minor, infraspinatus
Where is the depressor anguli oris? K L M N J
L
What is the antagonist of the muscle labeled B? Corrugator supericilii Temporalis Levator palpebrae superioris Occipitofrontalis Levator labii superioris
Levator palpebrae superioris
During inhalation, ___ muscles contract to elevate the ribs. During forced exhalation, ___ muscles contract to depress the ribs. External intercostals; internal intercostals Transverse abdominis; diaphragm Diaphragm; transverse abdominis Internal intercostals; external intercostals Rectus abdominis; external obliques
external intercostals; internal intercostals
This type of muscle works by stabilizing the origin of the agonist so that it can act more efficiently. Synergist Agonist Antagonist Fixator Secondary mover
fixator
Due to the muscle attachments, a fracture to the ischial tuberosity would affect what lower limb movement? Adduction of the thigh Dorsiflexion of the foot Extension of the leg Flexion of the leg Abduction of the thick
flexion of the leg
A woman complains of problems going up steps. Tests reveal hip extension weakness but no issues with hip flexion or knee flexion or extension. What muscle is most likely damaged? Adductor magnus Gluteus maximus Gluteus medius Semitendinosus Sartorius
gluteus maximus
This muscle, which is found in the neck, functions to elevate the hyoid bone and help press the tongue against the roof of the mouth during swallowing. Mylohyoid Sternothyroid Sternocleidomastoid Digastric Masseter
mylohyoid
"How much wood would a woodchuck chuck if a woodchuck could chuck wood" is difficult to say. What muscles work together to allow this to be spoken? Masseter, buccinators, temporalis, platysma Palatoglossus, styloglossus, genioglossus, hyoglossus Risorius, zygomaticus minor, zygomaticus major mentalis, obicularis oris, levator labii superioris Sternohyoid, omohyoid, sternothyroid
palatoglossus, styloglossus, genioglossus, hyoglossus
Which muscle in this figure elevates the upper eyelid? B D E F G
B
Which of these muscles has an insertion on the occipital bone and temporal bone? A B F G D
B
Where is the sartorius? I B C D G
C
Which muscle in this figure is innervated by cranial nerve and can flex the cervical portion of the vertebral column? A B C K M
C
Which of the following is a muscle whose insertion is found on the clavicle and acromion process of the scapula within the pectoral girdle? Trapezius Pectoralis major Latissimus dorsi Gracilus Sartorius
Trapezius
What is the insertion of the muscle labeled G? Greater tubercle of humerus Spine of the scapula Acromial extremity of the clavicle Deltoid tuberosity of humerus
deltoid tiberosity of humerus
Your friend nods back and forth to you, making the "yes" motion. What muscle actions on the head at the neck are involved in this 'yes' motion? Rotation and circumduction Lateral and medial rotation Extension and flexion Protraction and retraction Elevation and depression
extension and flexion
What is the insertion of the muscle labeled D? Lateral and medial condyles of femur and capsule of knee Head of fibula Head of fibula Calcaneus by way of Achilles tendon Anterior surface of fibula and interosseous membrane Distal phalanx of great toe
Calcaneus by way of Achilles tendon