Lab 2 Muscles

Question 1

Which muscles act on the humerus scapula and vertebrae

Answer 1

Pectoralis major
Deltoid
Serratus anterior
Coracobrachialis
Pectoralis minor
Trapezius
Latissimus Dorsi
Erector spinae (spinalis, lingissimus, iliocostalis)

Question 2

Origin Insertion and Action of Pectoralis Major

Answer 2

O: Clavicle,Sternum, Ribs
I: Humerus- Intertubercular sulcus
A: Flex, Adduct & Medially Rotate Humerus

Question 3

Origin Insertion and Action of Deltoid

Answer 3

O: Scapula- Acromion & Spine/ Clavicle
I: Humerus- Deltoid Tuberosity
A: Anterior :Flex & Medially Rotate Humerus
Posterior: Extend & Laterally Rotate Humerus
Lateral: Abduct Humerus

Question 4

Action of Serratus Anterior

Answer 4

Abduction/Protract & Upwardly Rotate Scapula

Question 5

Action of Coracobrachialis

Answer 5

Adduct & Flex Humerus

Question 6

Action of Pectoralis Minor

Answer 6

Abduct/Protract & Depress Scapula

Question 7

Origin Insertion and Action of Trapezius

Answer 7

O: Occipital bone, Vertebrae, Nuchal Ligament
I: Scapula- Acromion & Spine
A: Elevate, Depress, Retract, & Upwardly Rotate Scapula

Question 8

Origin Insertion and Action of Latissimus Dorsi

Answer 8

O: Vertebrae, Ribs, Ilium
I: Humerus- Intertubercular sulcus
A: Adduct, Extend, & Medially Rotate Humerus

Question 9

What are the muscles that make up the Erector Spinae

Answer 9

I: Iliocostalis
Love: Longissimus
Standing: Spinalis

Question 10

Actions of Erector Spinae

Answer 10

Extend Vertebral Column

Question 11

Muscles that act on the wrist and hand?

Answer 11

Palmaris Longus
Flexor Carpi Ulnaris
Flexor Carpi Radialis
Flexor Digitorum Superficialis
Flexor Digitorum Profundus
Flexor Pollicis Longus
Extensor Digitorum
Extensor Carpi Ulnaris Extensor Carpi Radialis Longus
Extensor Carpi Radialis Brevis

Question 12

Which muscles originate at the Medial Epicondyle of the Humerus

Answer 12

Palmaris Longus
Flexor Carpi Ulnaris
Flexor Carpi Radialis
Flexor Digitorum Superficialis
Flexor Digitorum Profundus

Question 13

Insertion and Action of Palmaris longus

Answer 13

I: Flexor retinaculum & Palmar Aponeurosis
A: Flex Wrist

Question 14

Insertion and Action of Flexor Carpi Ulnaris

Answer 14

I: Metacarpals & Carpals
A: Flex & Adduct Wrist

Question 15

Insertion and Action of Flexor Carpi Radialis

Answer 15

I: Metacarpals
A: Flex, Abduct Wrist

Question 16

Which muscles Flex the Wrists and Fingers

Answer 16

Flexor Digitorum Superficialis
Flexor Digitorum Profundus

Question 17

Origin and Insertion of Flexor Digitorum Superficialis

Answer 17

O: Humerus- Medial Epicondyle
I: Middle Phalanges

Question 18

Origin and Insertion of Flexor Digitorum Profundus

Answer 18

O: Ulna
I: Distal Phalanges

Question 19

Origin Insertion and Action of Flexor Pollicis Longus

Answer 19

O: Radius
I: Distal Phalanx 1
A: Flex Thumb

Question 20

Which muscles originate at the Lateral epicondyle of the Humerus

Answer 20

Extensor Digitorum
Extensor Carpi Ulnaris
Extensor Carpi Radialis Longus
Extensor Carpi Radialis Brevis

Question 21

Insertion of Extensor Digitorum

Answer 21

I: Phalanges II-V

Question 22

Insertion of Extensor Carpi Ulnaris

Answer 22

I: Metacarpal V

Question 23

Insertion of Extensor Carpi Radialis Longus

Answer 23

Metacarpal II

Question 24

Insertion of Extensor Carpi Radialis Brevis

Answer 24

Metacarpal III

Question 25

Which muscles can Extend and Adduct the wrists?

Answer 25

Extensor Digitorum Extensor Carpi Ulnaris Extensor Carpi Radialis Longus Extensor Carpi Radialis Brevis

Question 26

Elbow muscles

Question 27

Origin Insertion and Action of Pronator quadratus

Answer 27

O: Distal Ulna I: Distal Radius A: Pronate elbow

Question 28

Origin of Biceps Brachii Long head

Answer 28

Scapula- Superior Glenoid Cavity

Question 29

Origin of Biceps Brachii Short Head

Answer 29

Scapula Coracoid Process

Question 30

Which muscles insert at the Radial Tuberosity?

Answer 30

Biceps Brachii long and short head

Question 31

What is the action of Biceps Brachii long and short head?

Answer 31

Flex and Supinate Elbow

Question 32

What is the action of Brachialis and Brachioradialis?

Answer 32

Flex Elbow

Question 33

Origin of Triceps Brachii- Long head

Answer 33

Scapula- Inferior Glenoid Cavity

Question 34

Origin of Triceps Brachii lateral head

Answer 34

Proximal Humerus

Question 35

Origin of Triceps Brachii Medial Head

Answer 35

Humerus Shaft

Question 36

Which muscles insert at the Ulna Olecranon

Answer 36

Triceps Brachii long, medial, and lateral head

Question 37

Which muscles Extend the elbow

Answer 37

Triceps Brachii long, lateral, and medial head Aconeus

Question 38

Action of the Supinator Muscle

Answer 38

Supinate Elbow

Question 39

Action of the Pronator Teres Muscle

Answer 39

Pronate Elbow

Question 40

Which muscles originate at the Humerus and Ulna?

Answer 40

Supinator Pronator Teres

Question 41

Which muscles insert at the Radius?

Answer 41

Supinator Pronator Teres