Holes Human Anatomy and Physiology Twelfth Edition Shier

Hole’s Human Anatomy and Physiology Twelfth Edition Shier w Butler w Lewis Chapter 9 Muscular System Copyright © The Mc. Graw-Hill Companies, Inc. Permission required for reproduction or display. 1

Muscles of Facial Expression http: //www. face-and-emotion. com/dataface/expression/muscles. jsp 2

Muscles of Mastication 3

Muscles of Facial Expression and Mastication cranial aponeurosis Frontalis Occipitalis Temporalis Copyright © The Mc. Graw-Hill Companies, Inc. Permission required for reproduction or display. Orbicularis oculi Zygomaticus muscles Masseter Buccinator Orbicularis oris Sternocleidomastoid Platysma (a) 4

Muscles of the Abdominal Wall Copyright © The Mc. Graw-Hill Companies, Inc. Permission required for reproduction or display. Rectus abdominis External oblique Internal oblique Transversus abdominis Copyright © The Mc. Graw-Hill Companies, Inc. Permission required for reproduction or display. Peritoneum Linea alba (a) Internal oblique External oblique Skin (e) Transversus abdominis Rectus abdominis External oblique Internal oblique Transversus abdominis 5 (b) (c) (d)

http: //www. biologycorner. com/anatomy/muscles/head_m uscles. html#

Muscles That Move the Head and Vertebral Column 7

Muscles That Move the Head and Vertebral Column Copyright © The Mc. Graw-Hill Companies, Inc. Permission required for reproduction or display. Splenius capitis (cut) Longissimus capitis Semispinalis capitis (cut) Semispinalis capitis Splenius capitis Spinalis cervicis Longissimus cervicis Iliocostalis thoracis Longissimus thoracis Spinalis thoracis Iliocostalis lumborum Quadratus lumborum 8

Muscles That Move the Pectoral Girdle 9

Muscles That Move the Pectoral Girdle Copyright © The Mc. Graw-Hill Companies, Inc. Permission required for reproduction or display. Levator scapulae Supraspinatus Infraspinatus Teres minor Teres major Rhomboid minor Rhomboid major Trapezius Deltoid Latissimus dorsi (a) Rhomboid minor Trapezius Rhomboid major Deltoid Latissimus dorsi 10 (b) (c) (d)

Muscles That Move the Arm 11

Muscles That Move the Arm Copyright © The Mc. Graw-Hill Companies, Inc. Permission required for reproduction or display. Sternocleidomastoid Pectoralis minor Internal intercostal External intercostal Trapezius Deltoid Pectoralis major Serratus anterior Rectus abdominis Linea alba (band of connective tissue) Internal oblique External oblique Transversus abdominis Aponeurosis of external oblique 12

Muscles That Move the Arm Copyright © The Mc. Graw-Hill Companies, Inc. Permission required for reproduction or display. Levator scapulae Supraspinatus Spine of scapula Deltoid Infraspinatus Teres minor Teres major Long head of triceps brachii Lateral head of triceps brachii (a) Levator scapulae Supraspinatus Infraspinatus Teres minor Teres major Triceps brachii (b) (c) (d) 13

Muscles That Move the Forearm 14

Muscles That Move the Forearm Copyright © The Mc. Graw-Hill Companies, Inc. Permission required for reproduction or display. Trapezius Clavicle Subscapularis Deltoid Coracobrachialis Medial border of scapula Short head of biceps brachii Long head of biceps brachii Brachialis (a) Subscapularis Coracobrachialis Biceps brachii (short and long heads) (b) (c) Brachialis (d) 15

Muscles That Move the Forearm Copyright © The Mc. Graw-Hill Companies, Inc. Permission required for reproduction or display. Biceps brachii Brachialis Supinator Pronator teres Brachioradialis Flexor carpi radialis Palmaris longus Flexor carpi ulnaris Extensor carpi radialis longus Flexor carpi ulnaris Flexor digitorum superficialis Pronator quadratus Flexor retinaculum (a) (b) Pronator teres Flexor digitorum superficialis Flexor carpi radialis Pronator quadratus 16 (c) (d) (e)

Cross Section of the Forearm Copyright © The Mc. Graw-Hill Companies, Inc. Permission required for reproduction or display. Abductor pollicis longus m. Extensor digitorum m. Flexor pollicis longus m. Extensor carpi ulnaris m. Radius Extensor pollicis longus m. Extensor carpi radialis brevis m. Ulna Extensor carpi radialis longus m. Plane of section Flexor digitorum profundus m. Pronator teres m. Ulnar n. Brachioradialis m. Ulnar a. Radial n. Flexor carpi ulnaris m. Radial a. Median n. Flexor carpi radialis m. Flexor digitorum superficialis m. Anterior Palmaris longus m. 17

Muscles That Move the Hand • Flexors (anterior) and extensors (posterior) 18

Muscles That Move the Hand Copyright © The Mc. Graw-Hill Companies, Inc. Permission required for reproduction or display. Triceps brachii Brachioradialis Extensor carpi radialis longus Flexor carpi ulnaris Extensor carpi radialis brevis Extensor carpi ulnaris Extensor digitorum Extensor carpi radialis longusand brevis Extensor retinaculum Extensor carpi ulnaris Extensor digitorum (a) 19 (b) (c)

Muscles of the Abdominal Wall 20

Muscles of the Abdominal Wall Copyright © The Mc. Graw-Hill Companies, Inc. Permission required for reproduction or display. Rectus abdominis External oblique Internal oblique Transversus abdominis Copyright © The Mc. Graw-Hill Companies, Inc. Permission required for reproduction or display. Peritoneum Linea alba (a) Internal oblique External oblique Skin (e) Transversus abdominis Rectus abdominis External oblique Internal oblique Transversus abdominis 21 (b) (c) (d)

Muscles of the Pelvic Outlet 22

Muscles of Pelvic Outlet Copyright © The Mc. Graw-Hill Companies, Inc. Permission required for reproduction or display. Scrotum Penis Ischiocavernosus Bulbospongiosus Anus (a) Coccygeus Levator ani Urogenital diaphragm (c) Superficial transversus perinei Levator ani Gluteus maximus External anal sphincter (b) Clitoris Urethral orifice Vaginal orifice Anus Coccyx Rectum Vagina Urethra Symphysis pubis 23

Muscles That Move the Thigh 24

Muscles That Move the Thigh Copyright © The Mc. Graw-Hill Companies, Inc. Permission required for reproduction or display. Psoas major Psoas minor Iliacus Tensor fasciae latae Sartorius Rectus femoris Vastus lateralis Quadriceps femoris tendon (patellar tendon) Patellar ligament Pectineus Adductor longus Adductor magnus Sartorius Vastus intermedius Gracilis Vastus medialis (a) (b) Adductor brevis Gracilis Adductor longus Adductor magnus (e) (d) (c) Psoas major Psoas minor Iliacus (f) (g) 25

Muscles That Move the Thigh Copyright © The Mc. Graw-Hill Companies, Inc. Permission required for reproduction or display. Gluteus medius Tensor fasciae latae Gluteus maximus Sartorius Rectus femoris Vastus lateralis Biceps femoris Iliotibial tract (band) (a) Gluteus medius Gluteus maximus Gluteus minimus Piriformis 26 (b) (c) (d)

Muscles That Move the Leg 27

Muscles That Move the Leg Copyright © The Mc. Graw-Hill Companies, Inc. Permission required for reproduction or display. Gluteus medius Gluteus maximus Adductor magnus Vastus lateralis covered by fascia Gracilis Biceps femoris Semitendinosus Semimembranosus Sartorius Gastrocnemius Semitendinosus (a) Semimembranosus Biceps femoris (short head) (b) Biceps femoris (long head) (c) 28

Muscles That Move the Leg Copyright © The Mc. Graw-Hill Companies, Inc. Permission required for reproduction or display. Lateral Medial Semitendinosus m. Semimembranosus m. Long head of biceps femoris m. Gracilis m. Adductor magnus m. Short head of biceps femoris m. Plane of section Sciatic n. Adductor longus m. Great saphenousv. Femoralv. and a. Sartorius m. Vastus medialis m. Shaft of femur Vastus lateralis m. Vastus intermedius m. Adipose tissue Rectus femoris m. Skin Anterior 29

Muscles That Move the Leg Copyright © The Mc. Graw-Hill Companies, Inc. Permission required for reproduction or display. Plantaris Iliotibial tract (band) Semitendinosus Soleus Biceps femoris Semimembranosus Gracilis Sartorius Gastrocnemius: Medial head Lateral head Fibularis longus (b) (c) Soleus Calcaneal tendon Fibularis brevis Flexor digitorum longus Tibialis posterior Flexor retinaculum Calcaneus (a) Flexor digitorum longus Fibular retinacula 30 (d) (e)

Muscles That Move the Foot 31

Muscles That Move the Foot Copyright © The Mc. Graw-Hill Companies, Inc. Permission required for reproduction or display. Patellar ligament Tibialis anterior Gastrocnemius Fibularis longus Extensor digitorum longus Soleus Fibularis brevis Tibia Extensor retinacula (a) Tibialis anterior Fibularis tertius (b) Extensor digitorum longus Extensor hallucis longus (c) 32 (d)

Muscles That Move the Foot Copyright © The Mc. Graw-Hill Companies, Inc. Permission required for reproduction or display. Biceps femoris Vastus lateralis Gastrocnemius Head of fibula Fibularis longus Soleus Tibialis anterior Extensor digitorum longus Calcaneal tendon Fibularis brevis Fibularis tertius Extensor retinacula Fibular retinacula (a) Fibularis longus Fibularis brevis 33 (b) (c)