chapter 11

Which are muscles that flex and/ or supinate the arm at the elbow?

-Biceps brachii -Brachialis -Supinator -Brachioradialis

Contraction of anterior muscles of the thigh results in

-Flexion of the thigh -Rotation of the thigh

The prime movers of the glenohumeral joint are the

-Latissimus and pectoralis major

Identify the movements of the glenhumeral joint that occur with contraction of the pectoralis major

-Flexion of the arm -Medial rotation of the arm -Adduction of the arm

Follow-through: Slows the arm after the pitch is thrown

-Infraspinatus -Teres minor

Middle fibers

-Retract scapula

Which of the following correctly describes the location of the rhomboids , both minor and major?

-They are posterior thoracic muscles -They are deep to the trapezius -They are inferior to the levator scapulae

Which muscles extend the forearm?

-Triceps brachii -Anconeus

Muscles that move the head and neck originate where?

On the vertebral column, thoracic, and pectoral girdle

Antagonist

Opposes the agonist

Which of the following is considered a circular muscle?

Orbicularis oris

From lateral to medial, order of the following erector spinae muscles of the vertebral column

1 .Iliocostalis group 2. Longissimus group 3 Spinalis group

Posterior forearm muscles in Superficial layer from lateral to medial

1. Extensor carpi radialis longus 2.Extensor carpi radialis brevus 3.Extensor digitorum 4.Extensor digiti minimi 5.Extensor carpi ulnaris

From lateral to medial, the forearm muscles of the superficial layer of the anterior compartments are the:

1. Pronator teres 2.Flexor carpi radiallis 3.Plmaris longus 4.Flexor carpi ulnaris

List the pharyngeal constrictors from innermost (Deepest) to outermost (most superficial)

1. Superior constrictor 2. Middle constrictor 3. Inferior constrictor

Why is the forearm larger near the elbow than it is near the wrist?

The bellies of the forearm muscles that move the wrist are located near the elbow; the tendons of these muscles extend toward the wrist

Identify the movements of the glenohumeral joint that occur with the contraction of the deltoid

-Abduction of the arm -Lateral rotation of the arm -Flexion of the arm -Extension of the arm -Medial rotation of the arm

Contraction of the superficial muscles in the gluteal region results in

-Abduction of the thigh -Extension of the thigh -Rotation of the thigh

When the gracilis contracts the thigh is

-Adducted -Flexed

Identify the movements of the glenohumeral joint that occurs with contraction of the triceps brachii

-Adduction of the arm -Extension of the arm

Superior fibers-Scapula

-Elevate scapula -Superiorly rotate scapula

In general, muscles in the posterior compartment of the thigh tend to

-Extend the thigh at the hip joint -Flex the leg at the knee joint

The functions of the erector spinae muscles include

-Extension of vertebral column -Maintenance of posture -Lateral flexion of vertebral column

Synergist

Assists the agonist

Inferior fibers-Scapula

Depress scapula

The intrinsic muscles of the foot form_____group

Dorsal and plantar

The posterior compartment of the forearm contains muscles that___the wrist, the metacarpophalangeal joint, the interphalangeal joints

Extend

Which best summarizes the movements of the glenhumeral joint that occur with contraction of the deltoid?

Flexion, abduction, medial rotation and lateral rotation

In addition to the compartments, muscles in two other groups move the hip joint/ thigh

Gluteal group and deep muscles of the gluteal region

Which of the following are the muscles of the gluteal group of the posterior thigh?

Gluteus minimus Gluteus medius Gluteus maximus

As swallowing ends, the anterior muscles that contract to influence the position of the hyoid bone and the larynx are the _____muscles

Infrahyoid

Muscles of the anterior neck that are inferior to the hyoid bone are called

Infrahyoid

Which of the following compartments contains one or more muscles that move the hip joint but not the knee joint?

Lateral

Unilateral contraction of the erector spinae muscles causes

Lateral flexion of the vertebral column

The term_____refers to the process of chewing

Mastication

Identify the location of the triceps brachii

Posterior arm

The prime mover of the flexion of the arm is the

Pectoralis major

The____is commonly called the throat

Pharynx

Agonist

Prime mover

The main muscles of the anterolateral neck are the_______muscle and the three scalene muscles

Sternocleidomastoid

Wind up

Subscapularis

The anterior compartment of the forearm is subdivided into three layers_____,_____ and_____

Superficial , intermediate, deep

The actions of the muscles in the lateral compartments of the leg include

-Plantar flexion of the foot -Eversion of the foot

In very general terms, the posterior forearm muscles of the superficial layer______, whereas the muscles of the deep layer_____

Extend the wrist; extend fingers 1 and 2

When any one or all of the posterior muscles of the hamstring group are contracted, the thigh is

Extended

The common action of the muscles of the anterior compartment collectively called the quadriceps femoris is_____at the knee joint

Extension of the leg

Which muscles curl, squeeze, and fold tongue during chewing and speaking?

Intrinsic tongue muscles

Delivery of pitch

Supraspinatus

The obturator externus is one of the muscles of the _______compartment of the thigh

Medial

All muscles that move the pectoral girdle originate

On the axial skeleton

Contraction of the deep muscles of the gluteal region results in

Rotation of the thigh

In addition to its role in the compartmentalization of the thigh, the fasciae latae

Supports and binds the thigh muscles

The tendons of forearm muscles are individually surrounded by ______sheaths and collectively held close to the carpal bones by fibrous bands of fascia called________

Synovial, retinacula

Identify the movements of the glenohumeral joint that occur with contraction of the teres major

-Adduction of the arm -Medial rotation of the arm -Extension of the arm

Which of the following are muscles that move the glenohumeral joint that originate on the scapula?

-Biceps brachii -Teres major -Coracobrachialis -Triceps brachii -Deltoid

Inferior fibers

-Depress scapula

Muscles that move the pectoral girdle

-Elevate or depress the scapula -Protract or retract the scapula -Rotate the scapula inferiorly or superiorly

Superior fibers

-Elevate scapula -Superiorly rotate scapula

T/F: The intrinsic muscles of the foot act primarily to evert and invert the foot.

-False

Which correctly describes the action(s) of the biceps femoris?

-Flexes leg -Laterally rotates leg

The superficial anterior muscles of the forearm include

-Flexor carpi ulnaris -Brachioradialis -Flexor carpi radialis -Pronator teres -Palmaris longus

Which of the following best describes the actions of the subclavius?

-It depresses the clavicle -It stabilizes the clavicle

Which of the following best describes the location of the trapezius?

-It is a posterior thoracic muscle -It is superficial to other posterior thoracic muscles that move the pectoral girdle

What happens to the scapula when the levator scapulae contracts?

-It is elevated -It is rotated, inferiorly

Which includes all of the forearm muscles in the deep layer of the anterior compartment?

-Pronator quadratus, flexor pollicis longus, flexor digitorum profundus

Middle fibers-Scapula

-Retract scapula

Contraction of the minor and major rhomboids results in which of the following movements of the scapula?

-Retraction -rotation, inferiorly -Elevation

When the tensor fasciae latae contracts, the thigh is _____

-Rotated medially -abducted

Which are muscles that flex the leg at the Knee joint?

-Semimembranosus -Sartorius -Biceps femoris -Semitendinosus -Gracilis

The anterior thoracic muscles that move the pectoral girdle are the _____,______,_______

-Serratus anterior -Subclavius -Pectoralis minor

Both the thenar and hypothenar groups of intrinsic hand muscles include;

-Small flexors,abductors, and oppenens muscles

The levator scapulae

-is superior of the rhomboid (minor and major) -is deep to the trapezius -is a posterior thoracic muscle

Which muscles move the glenohumeral joint and originate on the axial skeleton?

-latissimus dorsi -Pectoralis major

The name of the coracobrachialis indicates that it extends from its point of origin, the ______ ______of the scapula, to it's point of insertion , the brachium, which means arm and refers to the humerus

Coracoid process

Put in simple terms, the intrinsic muscles of the hand are classified anatomically as the group at the base of the thumb (the_____group), those found at the base of the little finger (the_____group), and everything in between (the_____group)

Thenar; hypothenar; midpalmer

T/F: All anterior muscles that move the pectoral girdle are deep to other thoracic muscles

True

T/F: Muscles that insert on the pectoral girdle stabilize the clavicle and scapula and increase the range of motion of the arm.

True

T/F: The tensor fasciae latae is a muscle in the lateral thigh compartment

True