Bio 210 Lab Pratical 2

Muscles of chest,arm, hip,thigh, and lower leg - Review

Numbers:

1

2

3

Scalenus anterior:

O: Cervical vertebrae

I: Rib 1

A: Elevates rib

Scalenus medius:

O: Cervical vertebrae

I: Rib 1

A: Elevates rib

Scalenu’s Posterior:

O: Cervical vertebrae

I: Rib 2

A:Elevates rib

Numbers:

1

2

3

Scalenus anterior:

O: Cervical vertebrae

I: Rib 1

A: Elevates rib

Scalenus medius:

O: Cervical vertebrae

I: Rib 1

A: Elevates rib

Scalenu’s Posterior: O: Cervical vertebrae

I: Rib 2

A:Elevates rib

Numbers:

4

5

6

Teres major

N/A

Serratus ventralis

• Origin (O): First 8–9 ribs.

• Insertion (I): Scapula.

• Action (A): Pulls scapula forward and rotates it upward.

Subscapularis

• Origin (O): Scapula.

• Insertion (I): Humerus.

• Action (A): Medially rotates humerus; stabilizes shoulder.

Numbers:

4

5

6

Teres major

N/A

Serratus ventralis

• Origin (O): First 8–9 ribs.

• Insertion (I): Scapula.

• Action (A): Pulls scapula forward and rotates it upward.

Subscapularis

• Origin (O): Scapula.

• Insertion (I): Humerus.

• Action (A): Medially rotates humerus; stabilizes shoulder.

Number:

6

Subscapularis

• Origin (O): Scapula.

• Insertion (I): Humerus.

• Action (A): Medially rotates humerus; stabilizes shoulder.

Numbers:

1

2

3

4

7

8

9

10

Scalenus anterior

• Origin (O): Cervical vertebrae

• Insertion (I): Rib 1

• Action (A): Acting together, elevates rib during deep inhalation; acting singly, laterally flexes vertebral column

Scalenus medius

• Origin (O): Cervical vertebrae

• Insertion (I): Rib 1

• Action (A): Acting together, elevates rib during deep inhalation; acting singly, laterally flexes vertebral column

Scalenus posterior

• Origin (O): Cervical vertebrae

• Insertion (I): Rib 2

• Action (A): Acting together, elevates rib during deep inhalation; acting singly, laterally flexes vertebral column

Teres major

N/A

Extensor carpi radialis (brevis and longus)

• Origin (O): Humerus

• Insertion (I): Second metacarpal

• Action (A): Extends hand

Extensor digitorum lateralis (cat)

N/A

Pronator teres

• Origin (O): Humerus and Ulna

• Insertion (I): Radius

• Action (A): Pronates forearm

Palmaris longus

• Origin (O): Humerus

• Insertion (I): Radius

• Action (A): Flexes and supinates forearm

Numbers:

4

7

9

Teres major

N/A

Extensor carpi radialis

Pronator teres

• O: Humerus and Ulna

• I: Radius

• A: Pronates forearm

Numbers:

3

4

8

9

10

Scalenus posterior

• O: Cervical vertebrae

• I: Rib 2

• A: Acting together, elevates rib during deep inhalation; acting singly, laterally flexes vertebral column

Teres major

N/A

Extensor digitorum lateralis

N/A

• Pronator teres:

  • O: Humerus and Ulna

  • I: Radius

  • A: Pronates forearm

• Palmaris longus:

  • O: Humerus

  • I: Radius

  • A: Flexes and supinates forearm

Numbers:

11

12

Tibialis anterior

• Origin (O): Tibia

• Insertion (I): 1st metatarsal and 1st cuneiform

• Action (A): Flexes foot dorsally (dorsiflexes) and inverts it

Extensor digitorum longus

• Origin (O): Tibia and Fibula

• Insertion (I): Phalanges of 4 outer toes

• Action (A): Extends toes; dorsiflexes and everts foot

Numbers:

11

12

13

14

Tibialis anterior

• Origin (O): Tibia

• Insertion (I): 1st metatarsal and 1st cuneiform

• Action (A): Flexes foot dorsally (dorsiflexes) and inverts it

Extensor digitorum longus

• Origin (O): Tibia and Fibula

• Insertion (I): Phalanges of 4 outer toes

• Action (A): Extends toes; dorsiflexes and everts foot

• Peroneus longus

• Origin (O): Fibula (and tibia)

• Insertion (I): 1st metatarsal and 1st cuneiform

• Action (A): Plantar flexes and everts foot

Peroneus brevis

• Origin (O): Fibula (and tibia)

• Insertion (I): 5th metatarsal

• Action (A): Plantar flexes and everts foot

Peroneus tertius

• Origin (O): Fibula

• Insertion (I): 5th metatarsal

• Action (A): Dorsiflexes and everts foot

Numbers:

15

16

17

Gastrocnemius

• Origin (O): Femur

• Insertion (I): Calcaneus

• Action (A): Plantar flexes (extends) foot

Soleus

• Origin (O): Fibula and tibia

• Insertion (I): Calcaneus

• Action (A): Plantar flexes (extends) foot

Achilles Tendon

N/A

Numbers:

17

Achilles Tendon

N/A

Numbers:

18

Sartorius

• Origin (O): Ilium

• Insertion (I): Tibia

• Action (A): Flexes the knee; flexes the thigh and rotates it laterally

Numbers:

18

19

20

21

Sartorius

• Origin (O): Ilium

• Insertion (I): Tibia

• Action (A): Flexes the knee; flexes the thigh and rotates it laterally

• Iliopsoas

• Origin (O): Iliac (Iliacus portion) and Lumbar vertebrae (Psoas major portion).

• Insertion (I): Femur.

• Action (A): Flexes and rotates femur laterally; flexes vertebral column

• Pectineus

• Origin (O): Pubis.

• Insertion (I): Femur.

• Action (A): Flexes, adducts, and rotates thigh laterally

Gracilis

• Origin (O): Pubis.

• Insertion (I): Tibia.

• Action (A): Flexes knee; adducts thigh.

Numbers:

22

23

24

25

Biceps femoris

• Origin (O): Ischium and femur

• Insertion (I): Fibula and tibia

• Action (A): Flexes knee; extends thigh

• Vastus lateralis

• Origin (O): Femur

• Insertion (I): Patella and tibia

• Action (A): Extends knee

• Rectus femoris

• Origin (O): Ilium

• Insertion (I): Patella and tibia

• Action (A): Extends knee; flexes thigh

• Vastus medialis

• Origin (O): Femur

• Insertion (I): Patella and tibia

• Action (A): Extends knee

Numbers:

22

23

24

25

Biceps femoris

• Origin (O): Ischium and femur

• Insertion (I): Fibula and tibia

• Action (A): Flexes knee; extends thigh

• Vastus lateralis

• Origin (O): Femur

• Insertion (I): Patella and tibia

• Action (A): Extends knee

• Rectus femoris

• Origin (O): Ilium

• Insertion (I): Patella and tibia

• Action (A): Extends knee; flexes thigh

• Vastus medialis

• Origin (O): Femur

• Insertion (I): Patella and tibia

• Action (A): Extends knee

Number:

26

27

28

Adductor Longus

• Origin (O): Pubis

• Insertion (I): Femur

• Action (A): Adducts, rotates, and flexes femur

• Adductor Femoris

• Origin (O): Pubis and Ischium

• Insertion (I): Femur

• Action (A): Adducts, rotates, and flexes femur

• Semimembranosus

• Origin (O): Ischium

• Insertion (I): Tibia

• Action (A): Flexes knee; extends thigh

Numbers:

26

27

28

29

Adductor Longus

• Origin (O): Pubis

• Insertion (I): Femur

• Action (A): Adducts, rotates, and flexes femur

• Adductor Femoris

• Origin (O): Pubis and Ischium

• Insertion (I): Femur

• Action (A): Adducts, rotates, and flexes femur

• Semimembranosus

• Origin (O): Ischium

• Insertion (I): Tibia

• Action (A): Flexes knee; extends thigh

Semitrndinosus

• Origin (O): Ischium

• Insertion (I): Tibia

• Action (A): Flexes knee; extends thigh

Numbers:

30

31

32

Gluteus Maximus

• Origin (O): Ilium, sacrum, and coccyx

• Insertion (I): Femur

• Action (A): Extends and rotates femur laterally

Gluteus Medius

• Origin (O): Ilium

• Insertion (I): Femur

• Action (A): Abducts and rotates femur laterally

Caudofemoralis

N/A

Numbers:

33

34

Tenuissimus

• Origin (O): Ischium

• Insertion (I): Tibia

• Action (A): Flexes knee; extends thigh

• Sciatic Nerve

N/A

Numbers:

10

4

9

5

Palmaris Longus

• Origin (O): Humerus

• Insertion (I): Radius

• Action (A): Flexes and supinates forearm

Flexor Digitorum Profundus

• Origin (O): Ulna

• Insertion (I): Distal phalanges

• Action (A): Flexes all distal phalanges

Pronator Teres

• Origin (O): Humerus and Ulna

• Insertion (I): Radius

• Action (A): Pronates forearm

Flexor Carpi Radialis

• Origin (O): Humerus

• Insertion (I): 2nd and 3rd metacarpals

• Action (A): Flexes and adducts wrist

Numbers:

8

3

Extensor Digitorum Lateralis

• Origin (O): Not provided in the study tables.

• Insertion (I): Not provided in the study tables.

• Action (A): Not provided in the study tables

• Extensor Carpi Ulnaris

• Origin (O): Humerus and Ulna

• Insertion (I): 5th metacarpal

• Action (A): Extends and adducts wrist

Numbers:

1

7

2

6

Brachioradialis

• Origin (O): Humerus

• Insertion (I): Radius

• Action (A): Flexes forearm

• Extensor Carpi Radialis

• Origin (O): Humerus

• Insertion (I): Second metacarpal

• Action (A): Extends hand

Extensor Digitorum Communis

• Origin (O): Humerus

• Insertion (I): Four digits (fingers)

• Action (A): Extends digits

• Flexor Carpi Ulnaris

• Origin (O): Humerus and Ulna

• Insertion (I): Pisiform, hamate, and 5th metacarpal

• Action (A): Flexes and adducts wrist

Numbers:

1

7

6

Brachioradialis

O: Humerus

I: Radius

A: Flexes forearm

• Extensor Carpi Radialis

• Origin (O): Humerus

• Insertion (I): Second metacarpal

• Action (A): Extends hand

• Flexor Carpi Ulnaris

• Origin (O): Humerus and Ulna

• Insertion (I): Pisiform, hamate, and 5th metacarpal

• Action (A): Flexes and adducts wrist