A & P chapter 10
Well developed mental is muscles result in
A dimple in the chin
The synergistic is
A group of muscles that work together to cause movement
The orbicularis oris muscle
Puckers the mouth for kissing
All of the following muscles are rotators of the arm. Which is a lateral rotator of the arm?
deltoid
The muscles of the anterior group of forearm muscles are primarily
flexors
Which abdominal wall muscle inserts on the 10th to 12th ribs and rectus sheath?
internal abdominal oblique
Flexion of the hip is a movement produced by the
Flexion of the hip is a movement produced by the
Which of the following represents a class I lever system
Hyperextension of the Head
Facial muscles are unusual in that they
Insert and sometimes originate on skin and connective tissue
When a skeletal muscle contracts to cause a given moment, the more movable end of the attachment of the muscle is termed its
Insertion
Muscles that change the shape of the tongue are called
Intrinsic muscles
In the body's lever systems, the
Joint represents the fulcrum point
Which of the following muscles does not extend the neck
Longus capitis
Which of the following muscles is involved in chewing gun
Masseter
Muscles that elevate the jaw and close the mouth include the
Masseter and medial prerygoid
Raising the eyebrows is the action of the .... muscles
Occipitofrobtalis
The disgastric muscle is involved in
Opening the mouth
The type of muscle that functions as a sphincter is
Orbicular
Of the following muscles of the head, which of the wraps around the orbits
Orbicularis oculi
Closing or puckering the lips is the action of the ..... muscle
Orbicularis oris
The sternocleimastoid muscle extends from the mastoid process of the temporal bone to the sternum and medial clavicle. The end of the muscle that connects to the sternum is the
Origin
The brachioradialis is named for its
Origin and insertion
Which of the following muscles is involved in swallowing
Palatopharyngeus
Muscles that have their fascicli arranged like barns of a feather along a common tendon are called
Pennate
The type of muscle that can contract with the greatest force is the
Pennate
Which of the following muscles is named for its location
Quadriceps femoris
The levator palpebrae superioris muscle
Raises the eyelid
The muscle shape that has the capacity to shorten to the greatest degree is
Straight
In order to stabilize the hyoid so that the larynx can be elevated in swallowing, the ..... muscle group is used
Suprahyoid
When you pull your tummy in and compress your abdomen, you use the rector abdominal, external abdominal oblique, internal abdominal oblique, and trans versus, abdominis musle. This is an example of muscles working as
Synergists
The insertion is
The end of the muscle where the action occurs
Which of the following muscles is named for its shape
Trapezius
Which of the following is found in the posterior group of forearm muscles?
abductor pollicis longus
The gluteus maximus
accounts for a sprinter's stance
In humans
back muscles are strong to maintain erect posture.
Supination of the forearm and hand is accomplished by the
biceps brachii and supinator
Raising your arm to shoulder level is accomplished almost entirely by the
deltoid
The major movement produced during quiet breathing is accomplished by the
diaphragm.
Damage to the muscle called the levator ani would result in
difficult defecation and decreased support for the pelvic viscera
In order to put on a glove, the fingers are abducted by hand muscles called the
dorsal interossei
Which back muscle inserts on the ribs and vertebrae?
erector spinae
The anconeus works with the triceps brachii to
extend the forearm.
A muscle that extends both the wrist and the index finger is the
extensor indicis.
Which abdominal wall muscle is the most superficial of the oblique muscles?
external abdominal oblique
The teres major and teres minor are not involved in
flexion and abduction of the arm.
The radial pulse can be felt just lateral to the tendon of the
flexor carpi radialis
Which of the following muscles flexes the wrist?
flexor carpi radialis
If a person drums their fingers on the table, they would be using which of the following muscles?
flexor digitorum profundus
The largest buttocks muscle is the
gluteus maximus
The rotator cuff muscles
hold the head of the humerus in the glenoid fossa of the scapula
Which of the following muscles is part of the rotator cuff?
infraspinatus
Which of the following muscles contracts during forced expiration?
internal intercostals
What back muscle originates on the vertebral spinous processes?
interspinales
The arm is attached to the thorax by the
latissimus dorsi and pectoralis major
The pelvic diaphragm is formed by the
levator ani and coccygeus muscles.
Which muscle will elevate the scapula
levator scapulae
Which back muscle extends the head?
longissimus capitis
Which back muscle extends and rotates the vertebral column?
multifidus
Which of the following muscles of the chest has its insertion on the humerus?
pectoralis major
Which muscle will depress the scapula or elevate the ribs
pectoralis minor
Which muscle flexes the vertebral column?
psoas minor
Which abdominal wall muscle originates on the iliac crest and the lower lumbar vertebrae?
quadratus lumborum
The abdominal muscle that has its origin at the pubic crest and symphysis pubis is the
rectus abdominis
Which muscle retracts, rotates, and fixes the scapula?
rhomboideus major
Contracting the right sternocleidomastoid muscle would
rotate the head toward the right
Which muscle rotates and protracts the scapula, and elevates the ribs
serratus anterior
Which muscle fixes the clavicle or elevates the first rib
subclavius
Of the following muscles of the forearm, which one rotates the forearm to turn the palm upwards?
supinator
A tennis player complains of severe pain in the shoulder when serving or returning an overhead volley. Which of the rotator cuff muscles is probably damaged?
supraspinatus
The extensor pollicis brevis moves the
thumb
The thenar muscles are involved in controlling the ____; the hypothenar muscles control the ____
thumb; little finger
Which abdominal wall muscle inserts on the xiphoid process and the linea alba
transversus abdominis
Which of the following muscles moves the scapula
trapezius
If a man exercises by doing push ups every day, he would strengthen or enlarge which of the following muscles?
triceps brachii
Which of the following muscles extends the forearm and has its insertion on the ulna?
triceps brachii
The flexion of the elbow represents a
Class III lever system
The zygomaticus major muscle
Contributes to laughing and smiling
The depressor anguli oris muscle
Contributes to pouting
The adductor longish is named for its
Function and size
When you say ah and stick out your tongue, which muscle do you use
Genioglossus
In order for both eyes to direct their gaze to the right, which of the following muscles are used? (1) right lateral rectus (2) right medial rectus (3) left lateral rectus (4) left medial rectus
1 and 4
If abdominal muscles are contracted while the vertebral column is fixed this will aid in
All of these choices are correct.
The orbicularis oculus muscle
Causes crows feet wrinkles
Contracting the trapezius muscle would
Extend and laterally flex the neck
Skeletal muscles
Extend from one bone to another bone
The prime mover is
The muscle that does most of the movement
The origin is
The stationary end of the muscle
The infraspinatus
laterally rotates the arm
An antagonist
A muscle working in opposition to another muscle
Contraction of the inferior rectus muscle directs the pupil to look
Down