Frog Muscular System

Front 1

A broad muscle behind the tympanic ring that closes the mouth.

Back 1

Depressor mandibuli

Front 2

A small muscles that extends from the tip of the suprascapula to the region between the tympanic ring and the eye.

Back 2

Temporalis

Front 3

A small muscle located in the front of the tympanic ring that raises the lower jaw and closes the mouth.

Back 3

Masseter

Front 4

A very thin sheet of muscle at the ventral surface of the floor of the mouth.

Back 4

Mylohyoid

Front 5

The continuation of rectus abdominis forward to the head under the episternum.

Back 5

Sternohyoid

Front 6

A small muscle overlapping the caudal portion of the suprascapula.

Back 6

Latissimus dorsi

Front 7

Muscles covering the outer surface of the suprascapula.

Back 7

Dorsalis scapulae

Front 8

A long muscle running close and along the vertebral column.

Back 8

Longissimus dorsi

Front 9

A narrow muscle located posteriorly to the longissimus dorsi and extends posterior in oblique position.

Back 9

Coccygeo-sacralis

Front 10

Running diagonally in the space between the ilia and the urostyle just caudal of the preceding muscle. It serves to hold the urostyle firmly.

Back 10

Coccygeo-iliacus

Front 11

A broad, thin muscle covering the ventral side of the abdomen. The mid-ventral line is called the linea alba. The crosswise faint lines are called the ventral inscriptiones tendinae.

Back 11

Rectus abdominis

Front 12

A thin sheet of muscle, which forms the outer layer of the body wall at the side of the abdomen.

Back 12

External oblique

Front 13

Another sheet of oblique muscles internal to the external oblique.

Back 13

Internal oblique

Front 14

A triangularly-shaped muscle that lies at the anterior border of the shoulder.

Back 14

Deltoid

Front 15

Next to the preceding and arises in the midventral line passing outwards, piercing the distal portion of the deltoid.

Back 15

Sternordialis

Front 16

The anterior muscle of the chest just next to the sternordialis.

Back 16

Anterior pectoralis

Front 17

Next to the anterior pectoralis.

Back 17

Middle pectoralis

Front 18

A paddle-shaped muscle, lateral and posterior to the middle pectoralis.

Back 18

Posterior pectoralis

Front 19

Large muscle covering the entire thigh from anterior part to the posterior margin. The proximal end is divided into three heads.

Back 19

Triceps extensor femoris

Front 20

The outer head of the triceps extensor femoris which can be seen at the dorsal surface of the thigh.

Back 20

Vastus externus

Front 21

The middle head of the triceps extensor femoris which can be seen in both dorsal and ventral surface of the thigh.

Back 21

Rectus femoris anticus

Front 22

The inner head of the triceps extensor femoris which can be seen at the ventral surface of the thigh.

Back 22

Vastus internus

Front 23

A thin slender muscle immediately below the vastus internus and partly covered by the sartorius, but a small portion is exposed along the preaxial side of the latter.

Back 23

Adductor longus

Front 24

A thin flat muscle which traverse the thigh obliquely.

Back 24

Sartorius

Front 25

A stout triangular muscle lying behind the sartorius which crosses at its digital end.

Back 25

Adductor magnus

Front 26

A large muscle lying at the ventral side of the thigh.

Back 26

Gracilis major

Front 27

The most posterior, long slender muscle closely attached to the preceding, and run along the inner side of the thigh.

Back 27

Gracilis minor

Front 28

An internal muscle which could only be easily seen by separating the adductor magnus from the gracilis major.

Back 28

Semitendinosus

Front 29

A long slender muscle immediately below the vastus externus and partly covered by it.

Back 29

Biceps femoris

Front 30

A large muscle lying on the posterior margin of the dorsal surface of the thigh.

Back 30

Semimembranosus

Front 31

A small slender muscle extending ventrally and posteriorly from the tip of the urostyle and between the origin of the biceps femoris and the semimembranosus.

Back 31

Pyriformis

Front 32

A short muscle lying between the rectus femoris anticus and vastus externus.

Back 32

Gluteus

Front 33

A narrow muscle lying at the most anterior side of the tibio-fibula and divided distally into two parts.

Back 33

Tibialis anticus

Front 34

Lies immediately posterior to the tibialis anticus.

Back 34

Peroneus

Front 35

A large muscle a the posterior side of the shank. It is covered with fascia.

Back 35

Gastrocnemius

Front 36

A long narrow muscle adhering closely behind the tibio-fibula.

Back 36

Tibialis posticus

Front 37

A small muscle lying on its proximal half of the tibio-fibula.

Back 37

Extensor cruris

Front 38

A very small muscle found between two distal ends of the tibialis anticus.

Back 38

Flexor tarsi anterior

Front 39

A big long muscle on the posterior side of the upper arm which composed of three heads, i.e the outer lateral head, the middle long head, and the medial head.

Back 39

Triceps brachii

Front 40

The next muscle anterior to the lateral head of the triceps brachii.

Back 40

Brachialis

Front 41

Found on the outer surface of the ulna.

Back 41

Extensor carpi ulnaris

Front 42

Two kinds; lateralis and communis. This is next and anterior to the extensor carpi ulnaris.

Back 42

Extensor digitorium

Front 43

Next o the extensor digitorium on the preaxial border of the forearm.

Back 43

Brachioradialis

Front 44

Next to the brachioradialis and lies along the inner surface of the forearm.

Back 44

Extensor carpi radialis

Front 45

Next to the extensor carpi radialis on the ventral and inner side.

Back 45

Pronator teres

Front 46

Lies next to the pronator teres and partly covered by it.

Back 46

Flexor carpi radialis

Front 47

Flat muscle next to the flexor carpi radialus and partly covering it.

Back 47

Palmaris longus

Front 48

Forms the ulnar border of the forearm next to the palmaris longus and immediately below the extensor carpi ulnaris.

Back 48

Flexor carpi ulnaris