UNIT TWO STUDY GUIDE

MUSCLES OF THE CHEST

Pectoralis major

Pectoralis minor

MUSCLES OF THE ARM

Deltoid

Biceps brachii Antagonist is triceps brachii

Triceps brachii Antagonist is biceps brachii

Brachialis

Coracobrachialis

MUSCLES OF THE ANTECUBITAL FOSSA

Brachioradialis

Pronator teres

EXTENSORS OF THE FOREARM

Extensor digitorum

Extensor carpi radialis

Extensor carpi ulnaris

FLEXORS OF THE FOREARM

Palmaris longus

Flexor carpi radialis

Flexor carpi ulnaris

RETINACULUM: These are not muscles, rather, connective tissue sheathsaround the wrists that keep tendons from bulging outward when the muscles are contracted.

Flexor retinaculum

Extensor retinaculum

MUSCLES OF THE THUMB

Extensor pollicis longus

Extensor pollicis brevis

Abductor pollicis longus

MUSCLES OF THE BACK

Supraspinatus This is one of the Rotator Cuff Muscles

Infraspinatus This is one of the Rotator Cuff Muscles

Subscapularis This is one of the Rotator Cuff Muscles

Teres Minor This is one of the Rotator Cuff Muscles

Teres Major

Rhomboids

Trapezius

Latissimus dorsi

MUSCLES OF THE ABDOMEN AND RIBS

Linea alba:not a muscle, a connective tissue line running vertically; "white line"

Serratus anterior

External oblique

Internal oblique

Transversus abdominis

Rectus abdominis

External intercostals Antagonist is internal intercostals

Internal intercostals Antagonist is external intercostals

DiaphragmThis is the prime mover for respiration; it is innervated by the phrenic nerve

PELVIC GIRDLE

Gluteus maximus

Gluteus medius

Psoas major

Iliacus

ANTERIOR THIGH (extensors of the knee and one flexor of the thigh)(QUADRICEPS FEMORIS MUSCLE GROUP)

Rectus femoris

Vastus lateralis

Vastus medialis

Vastus intermedius

POSTERIOR THIGH (extensors of the thigh)

(HAMSTRINGS MUSCLE GROUP)

Semimembranosus

Semitendinosus

Biceps femoris

MEDIAL THIGH (adductors of the thigh, except Sartorius)

Sartorius

Gracilis

Pectineus

Adductor longus

Adductor magnus

Tensor fasciae latae

MUSCLES OF THE LEG

Gastrocnemius

Soleus

Tibialis anterior

Peroneus (fibularis) longus

MUSCLES OF FACIAL EXPRESSION

Epicranius

Levator labii superioris

Zygomaticus

Orbicularis oculi

Orbicularis oris

MUSCLES OF MASTICATION

Buccinator

Masseter

Temporalis

MUSCLES OF THE EYE:

Superior rectus

Inferior rectus

Medial rectus

Lateral rectus

Superior oblique

Inferior oblique

HISTOLOGY OF MUSCLES

Smooth muscle: Found in organs

Skeletal muscle: moves the skeleton

Cardiac muscle: has intercalated discs

SHEEP BRAIN STRUCTURES

HUMAN BRAIN MODEL

SPINAL CORD

EYE MODELS

EAR MODEL

External acoustic meatus (Auditory canal)

Pinna

Tympanum (tympanic membrane)

Eustachian tube(function is to equalize pressure on both sides of the tympanic membrane)

Semi-circular canal(function is for balance)

Cochlea(function is for hearing)

Vestibulocochlear nerve

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